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Home My WebLink About100-101a /00 - /01 Guhl, Meredith D (CED) From: Chmielowski, Jessie L C (CED) Sent: Thursday, June 20, 2019 4:08 PM To: Guhl, Meredith D (CED); Colombie, Jody J (CED) Subject: FW: [EXTERNAL] Legacy wells: ASRC is operator? Attachments: 171-007.pdf; Dsc00520 jpg See below. We can discuss tomorrow. Jessie Jessie Chmielowski Commissioner Alaska Oil and Gas Conservation Commission CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact AOGCC at 907- 793-1223 or iessie.chmielowski@alaska.gov. From: Brumbaugh, Robert <rbrumbau@blm.gov> Sent: Thursday, June 20, 2019 3:56 PM To: Chmielowski, Jessie L C (CED) <jessie.chmielowski@alaska.gov> Subject: Re: [EXTERNAL] Legacy wells: ASRC is operator? Hi Jessie, Cape Halkett should be listed in your records as Dept of the Interior. Even though there was a specific Cape Halkett exchange with ASRC, the legacy well bearing the name Caper Halkett is outside of the boundary of the exchange. As you noted, the well is P&A'd but surface debris remains. Chevron or ASRC should be listed as the operator for W.T Foran. Husky drilled the W.T. Foran #1 under contract to the USGS in 1977 and was plugged back to surface. The BLM transferred these lands to the ASRC as part of the Cape Halkett exchange in December 1981. Immediately after the exchange, ASRC authorized Chevron in January 1982 to drill the Livehorse #1 well on the same pad as W.T. Foran #1. Chevron reshaped the reserve pit and dumped their wellbore fluids and whatever else in there as well. When Chevron completed Livehorse, they removed the wellhead for W.T. Foran and placed an abandonment marker for both wells. Any remaining liability is with Chevron or ASRC. Colville Unit #2 was drilled by McCulloch Oil in 1971 to a TD 3254' with 2 plugs 110sx 2550-1760' and 100sx surface plug. See attached (you may already have since I think I got it from AOGCC). Also attached is a photo from 2003 showing the abandonment marker and signage. Unfortunately, backlighting obscures the text on the sign. On Thu, Jun 20, 2019 at 3:04 PM Chmielowski, Jessie L C (CED) <]essie.chmielowski@alaska.gov> wrote: Hi Rob, I am writing with some questions about 3 Legacy -type wells for which ASRC is listed as the operator in the AOGCC records. Is it possible to get this information by Tuesday? Cape Halkett 1: Well has been P&A'd but needs surface clean up. It appears that the land was not conveyed to ASRC. Should this well be filed under 'US Dept of Interior' rather than ASRC? 2. WT Foran 1: Well has been P&A'd and is on land conveyed to ASRC. Has BLM performed any final surface inspections to close out the well, i.e. Final Abandonment Notice sundry? 3. Colville Unit 2: Not listed as a Legacy well, but has been P&A'd and is on land conveyed to ASRC. Has BLM performed any final surface inspections to close out the well, i.e. Final Abandonment Notice sundry? Thanks, Jessie Jessie Chmielowski Commissioner Alaska Oil and Gas Conservation Commission CONFIDENTIALITY NOTICE. This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact AOGCC at 907-793-1223 or iessie.chmielowski@alaska.gov. Rob Brumbaugh BLM-Alaska Oil and Gas Section Chief Division of Resources Bureau of Land Management 222 W 7th Ave., Ste 13 Anchorage, AK 99513 907-271-4429 Introduction /00-101 Legacy Wells Summary Report Table 2. Legacy Wells Disposition Summary (Numbers in Parentheses Indicate Number of Wells) Wells Requiring No Additional BLM Action (68) Transferred under the Barrow Gas Field South Barrow 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ,16, 17, Transfer Act (19) 18, 19, 20; Walakpa 1, 2 Transferred to ASK in 1981 (1) W.T. Foran 1 Plugged: no subsurface risk, no surface Atigaru Point 1, Drew Point 1, East Teshekpuk 1, , Simpson risks (11) Core Test 27, Simpson Core Test 31, Umiat 2, 5, 6, 7, 8, 10 monitoring (1) Barrow Core Rig Test 1, Ikpikpuk Core 1, Oumalik Core Test Shallow, uncased wellbore: no 1; Oumalik Foundation 1, 2, 3, 4, 5, 6, 7, 8, 9, 10; Simpson subsurface risk, no surface risks (35) Core Test 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12; Simpson Core Test 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 Cased wellbore, surface inaccessible due Barrow Big Rig Test 1 to subsequent land use by NSB (1) JW Dalton 1 Plugged well, USACE doing surface clean- Umiat 9 UP (1) Minga Velocity Test 1, Sentinel Hill Core Test 1 Wells Currently in Use by USGS (18) Wells being used by USGS for Awuna 1, East Simpson 1, East Simpson 2, Ikpikpuk 1, temperature monitoring; future plugging Koluktak 1, Kugrua 1, Kuyanak 1, Lisburne 1, North Inigok and surface clean-up will be necessary 1, North Kalikpik, Peard 1, Seabee 1, South Harrison Bay 1, when no longer in use. (17) South Meade 1, Tunalik 1, West Dease 1, West Fish Creek 1 As above, with additional surface Tulageak 1 monitoring (1) 1, Oumalik 1, Oumalik Core Test 2, Oumalik Core Test 11, Wells Currently Requiring BLM Remediation (50) Plugged, need surface clean-up (8) Cape Halkett 1, Inigok 1, Simpson Core Test 30, 30A, South Simpson 1, Square Lake 1, Umiat 3, 4 Arcon Barrow Core Test 1, Avak 1, Barrow Core Rig Test 2, East Oumalik 1, East Topagoruk 1, Fish Creek 1, Iko Bay Test 1, Kaolak 1; Knifeblade 1, 2, 2A; Meade 1, North Simpson Require plugging 1, Oumalik 1, Oumalik Core Test 2, Oumalik Core Test 11, and surface clean-up (36) Oumalik Core Test 12, Simpson 1; Simpson Core Test 13, 14, 14A, 15, 26, 28, 29, Skull Cliff Core Test 1; South Barrow 1, 2, 3; Titaluk 1, Topagoruk 1, Umiat 1, Umiat 11, Wolf Creek 1, Wolf Creek 2, Wolf Creek 3 Plugged; requires monitoring (1) JW Dalton 1 Require monitoring and potential future plugging; No accurate GPS coordinates Minga Velocity Test 1, Sentinel Hill Core Test 1 (2) Transferred to ASRC in 1996; require Grandstand 1, Gubik Test 1, Gubik Test 2 more BLM action (3) Xli BLM Open File Report 127 • May 2013 Legacy Wells Summary Report ĂƉĞ,ĂůŬĞƩηϭ 45 >DKƉĞŶ&ŝůĞZĞƉŽƌƚϭϮϳͻDĂǇϮϬϭϯ Cape Halkett #1 SURFACE INFORMATION Site Location: Coordinates (DD NAD83) 70.7674° N, -152.4665° W. The Cape Halkett #1 site is on the arctic coastal plain in the northeast portion of National Petroleum Reserve in Alaska. The well is 105 miles east/southeast of Barrow and 51 miles northwest of Nuiqsut. The last site visit to Cape Halkett #1 was in July 2010. Site Description: Husky Oil drilled the Cape Halkett #1 well in 1975 for the U.S. Navy. The site is swampy, with the majority inundated with water [Figures 1 and 2]. Water levels vary, depending on the extent of spring melt or summer precipitation. The drilling area is in a low area approximately 4 miles west of the Beaufort Sea. No drilling pad appears to have been established. Instead, wooden pilings supported an elevated platform above the water for camp and overall support for drilling operations. The pilings at Cape Halkett #1 extend west from the well and are more extensive than most other sites drilled by Husky Oil. There is no reserve pit. Drilling muds appear on the tundra directly adjacent to the east side of the well [Figure 3]. There is no wellhead. The open casing is centered within a steel framed and sheeted cellar. The east side of the metal-sheeted cellar is sheared, and the base of the entire cellar has rusted. Minor amounts of metal debris, including piping, remain in the cellar. Broken cement blocks line the outside of the cellar. Some aquatic grasses have reappeared; sparse vegetation has accumulated on the drier areas of this site, primarily moss and lichens. Vegetation is approximately 40 percent. Erosion is not a factor at Cape Halkett #1 due to the lack of topographic relief. Surface Risk Assessment: Low Justification: While unsightly, the solid wastes in the form of concrete and metal present no threat to the environment. The drilling logs indicate that Husky Oil used no environmentally harmful substances in the drilling process. 46 ĂƉĞ,ĂůŬĞƩηϭLegacy Wells Summary Report >DKƉĞŶ&ŝůĞZĞƉŽƌƚϭϮϳͻDĂǇϮϬϭϯ &ŝŐƵƌĞϭ͗>ŽĐĂƟŽŶŽĨĂƉĞ,ĂůŬĞƩηϭůŽŽŬŝŶŐĞĂƐƚ͘dŚĞĞĂƵĨŽƌƚ^ĞĂŝƐϰŵŝůĞƐƚŽƚŚĞĞĂƐƚĂŶĚǀŝƐŝďůĞ ŽŶƚŚĞŚŽƌŝǌŽŶ;:ƵŶĞϮϬϬϱͿ͘ &ŝŐƵƌĞϮ͗ĞƌŝĂůǀŝĞǁŽĨĂƉĞ,ĂůŬĞƩηϭ͘EŽĚƌŝůůŝŶŐƉĂĚĂƉƉĞĂƌƐƚŽŚĂǀĞďĞĞŶĞƐƚĂďůŝƐŚĞĚĂƐƚŚĞĐĂŵƉ ĂŶĚƐƵƉƉŽƌƟŶŐĨĂĐŝůŝƟĞƐǁĞƌĞĞůĞǀĂƚĞĚŽīƚŚĞǁĂƚĞƌ͕ĂƐĞǀŝĚĞŶĐĞĚďǇƚŚĞƌĞŵĂŝŶŝŶŐƉŝůŝŶŐƐ͘dŚŝƐƉŚŽƚŽ ǁĂƐƚĂŬĞŶƐŚŽƌƚůǇĂŌĞƌƐƉƌŝŶŐďƌĞĂŬƵƉŝŶ:ƵŶĞϮϬϬϱ͘ Legacy Wells Summary Report ĂƉĞ,ĂůŬĞƩηϭ 47 >DKƉĞŶ&ŝůĞZĞƉŽƌƚϭϮϳͻDĂǇϮϬϭϯ &ŝŐƵƌĞϯ͗dŚĞƉĂƌƟĂůůǇƌĞǀĞŐĞƚĂƚĞĚĚƌŝůůŝŶŐŵƵĚƐůŽŽŬŝŶŐƐŽƵƚŚƚŽǁĂƌĚƚŚĞŵĞƚĂůĐĞůůĂƌĂŶĚƚŚĞďƌŽŬĞŶ ĐŽŶĐƌĞƚĞĂƌŽƵŶĚŝƚƐƉĞƌŝŵĞƚĞƌĂƚĂƉĞ,ĂůŬĞƩηϭ;:ƵůǇϮϬϭϬͿ͘ &ŝŐƵƌĞϰ͗ĂƉĞ,ĂůŬĞƩηϭŽƉĞŶĐĂƐŝŶŐĂŶĚŵĞƚĂůĐĞůůĂƌ;:ƵůǇϮϬϭϬͿ͘ 48 ĂƉĞ,ĂůŬĞƩηϭLegacy Wells Summary Report >DKƉĞŶ&ŝůĞZĞƉŽƌƚϭϮϳͻDĂǇϮϬϭϯ ^h^hZ&/E&KZDd/KE tĞůů/ŶĨŽƌŵĂƚŝŽŶ͗ ͻtĞůů,ŝƐƚŽƌǇ͗Cape Halkett #1 was drilled to a total depth of 9,900 feet. The well was spudded on March 24, 1975, and plugged by May 23, 1975. ͻtĞůůŽŶĚŝƚŝŽŶ͗ The Cape Halkett #1 site consists of a welded flanged base plate with open 7-inch casing inside of a constructed metal cellar ΀&ŝŐƵƌĞϰ΁. The casing protrudes about 2 feet above ground level. It is an open hole with no gauges or valves present. Four plugs were placed downhole to separate out the different formations. The surface plug is 1,425 feet thick ΀&ŝŐƵƌĞϱ΁. The BLM considers the well properly plugged. ͻtĞůůŚĞĂĚŽŵƉŽŶĞŶƚƐ͗ None. There is no wellhead at this site. 'ĞŽůŽŐŝĐ^ĞƚƚŝŶŐ͗The purpose of this well was to test for the presence of oil or gas productive formations within a truncated half dome structure near the Barrow Arch. Gas productive sands were found near the base of the Lower Cretaceous. Visible oil was at the boundary of the Torok Formation and Shublik Formation at a depth of 8,000 feet. Gas shows in the form of methane and ethane between 7,000 feet and 8,000 feet was clustered above the Kingak Shale, a Late Cretaceous unconformity, at the bottom of the Torok Formation (Patterson et al. 1975). ĞǀĞůŽƉŵĞŶƚWŽƚĞŶƚŝĂů͗Cape Halkett #1 is plugged and abandoned and will not affect future development. 'ƌŽƵŶĚǁĂƚĞƌZĞƐŽƵƌĐĞ͗None. Continuous permafrost exists throughout the entire National Petroleum Reserve in Alaska. Fresh water aquifers do not exist. KƚŚĞƌ/ŶĨŽƌŵĂƚŝŽŶ͗There is no indication of hydrocarbon escapement at or near the well site. ^ƵďƐƵƌĨĂĐĞZŝƐŬƐƐĞƐƐŵĞŶƚ: None Justification: The well has been adequately plugged per Federal regulations. Legacy Wells Summary Report ĂƉĞ,ĂůŬĞƩηϭ 49 >DKƉĞŶ&ŝůĞZĞƉŽƌƚϭϮϳͻDĂǇϮϬϭϯ &ŝŐƵƌĞϱ͗ĂƉĞ,ĂůŬĞƩηϭǁĞůůďŽƌĞĚŝĂŐƌĂŵ͘ kcsc›-1G` \OF/T�j�@ THE STATE Department of Environmental 40. � 7, '' Conservation ��:..�.aM °fALASKA Division of Spill Prevention and Response t-_- - �,,,�,..: Contaminated Sites Program / GOVERNOR SEAN PARNELL - 610 University Ave. o4%'ALAB Fairbanks,Alaska 99709-3643 Main:907.451.2181 Fax:907.451.5105 File: 320.38.010 March 19, 2014 Wayne Svejnoha BLM—Division of Resources sCANNED APR 2 2 2014 222 W 7th Ave, #13 Anchorage,Alaska 99513 Re: Meeting April ril3 or 4 to Provide Information Requested in PRP Letter for 10 Legacy Well Sites q g Y Dear Mr. Svejnoha: State Director Bud Cribley responded to our February 4 letter identifying BLM as a Potentially Responsible Party (PRP) at 136 legacy well sites. We appreciate BLM's offer to sit down with representatives of ADEC as soon as possible "on a site by site basis" to provide information requested in our PRP letter. This letter is a request for BLM to schedule a 4 hour meeting on April 3 or 4 to review your records on 10 of the 136 legacy well sites. If the files are large, the meeting should take place where they are located. ADEC was not previously aware that Site Inspection Reports had been prepared to document any indication of contaminant release at these sites. I previously sent to you BLM and EPA guidance on what is to be included in a Site Inspection report. It is my hope that our review of your investigation reports and data will answer all of our concerns at these sites. We should also discuss how our agencies can cooperate in the future so that your future sampling is conducted in compliance with both state and federal laws. Thank you again for offering to meet with us to clear this matter. Please contact me at (907) 451-2181 with the meeting time and place. The attached"ADEC Meeting Request" describes in detail the information we expect to review. We will not have time to review all sampling and workplan information at this meeting so I am requesting that you either provide those electronically or allow us to copy the original records. Sincerely, Fred Vreeman Environmental Program Manager Enclosure: ADEC Meeting Request Concerning 10 Legacy Well Sites BLM Letter to DEC Commissioner Hartig dated March 11, 2014 ADEC Info Request for NPRA Wells Wayne Svejnoha 2 March 19,2014 cc: Bud Cribley, State Director, Bureau of Land Management Steven Cohn, Deputy Director, Bureau of Land Management Jolie Pollet, Branch Chief,Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer,Bureau of Land Management Lon Kelley, Field Manager,Arctic Field Office, BLM Steve Hartmann, District Manager, Fairbanks District Office, BLM Larry Hartig, Commissioner,Alaska Department of Environmental Conservation Lynn Kent, Deputy Commissioner,Alaska Department of Environmental Conservation Kristen Ryan, Director,Alaska Department of Environmental Conservation Lori Aldrich, Program Manager,Alaska Department of Environmental Conservation Steve Bainbridge,Program Manager,Alaska Department of Environmental Conservation Jennifer Roberts,Program Manager,Alaska Department of Environmental Conservation G:\SPAR\CS\Contaminated Site Files(38)\320 National Petro Reserve Area\320.38.010 NPRA Legacy Wells General\3-19-14 Letter\Request for Meeting to Review 10 ADEC Meeting Request Concerning 10 Legacy Well Sites ADEC is requesting that BLM Schedule a meeting on April 3 or 4 to review BLM records concerning 10 legacy well sites. ADEC will review these reports with you "on a site by site basis" as agreed in Mr. Cribley's letter. To limit the scope of this first meeting ADEC has narrowed our request down to 10 specific well sites. Three of these sites are already listed by ADEC as contaminated sites, and seven of them are selected from information in the BLM "strategic plan" and other documents.All except the Skull Cliff site ranked "low" or"none" on the BLM risk ranking system used in the strategic plan report. This meeting may be scheduled either at BLM offices in either Anchorage or Fairbanks if that is convenient, or we will make conference room space available at ADEC offices. We are offering to meet at BLM if that is convenient so that you will not need to transport voluminous files. ADEC has suggested any time on April 3 or 4, and we are open to BLM suggestion of other dates. We encourage BLM to schedule the meeting"as soon as possible" as stated in Mr. Cribley's letter of March 11. Reviewing a site inspection file and site ranking typically takes about 20 minutes each, so we expect this meeting to last about 4 hours. If the site inspection report does not include all of the elements expected this may take less time. We are requesting that BLM provide electronic copies of your files because typically ADEC has specialists review data,lab reports, field notes, and work plans. The purpose of the ADEC review is to determine whether all of the required elements of the SI are present and to determine whether the sampling data supports the BLM determination that no further remedial investigation is required. The Federal regulatory requirements for an SI report are identified in BLM and EPA guidance, and the State reporting requirements are itemized in 18 AAC 75. These guidance and rule documents have been provided to BLM electronically. At the meeting ADEC expects to see the SI reports Mr. Cribley referred to and all supporting information, including the PA that was prepared for each of these sites. If BLM prepared comprehensive reports covering multiple sites that are not on this list we are requesting that BLM bring reports and files for the entire subset the report covers, but to limit specific information,data packs and appendices to just these 10 sites. We have requested that BLM provide electronic copies of all of the records that will be reviewed at this meeting. If these are not available ADEC requests access to the original reports and files out so that they can be scanned. Most of the sites on this list have records documenting historical sampling data confirming petroleum and other contaminant releases. BLM's SI workplans,records and reports will therefore include environmental sampling to support your presence/absence determination.ADEC has formally communicated to BLM that this type of environmental sampling activity requires workplan review and approval under 18 AAC 75, and this approval was not obtained. Please note that one of ADEC's objectives for this and subsequent meetings is to make sure future environmental sampling by BLM is compliant with both state and federal requirements. In the interest of cooperation ADEC will review your data at these sites even though we did not approve the SI workplans prior to the sampling. ADEC understands that the BLM and EPA PA and SI guidance typically does not apply to petroleum releases,however we note that if you followed the BLM guidance during the"site verification",PA, SI,RI, FS,ROD and removal action planning steps then the BLM CERCLA response process will meet all substantive state requirements at petroleum sites as well. To fully comply with state law BLM must also submit your workplans to the state of Alaska for approval under 18 AAC 75. Significant time can be saved during the Remedial Action process if the site is "petroleum only" by following the state process and not all of the CERCLA steps. ADEC has informed BLM previously that cleanup decisions must consider both state and federal requirements. The hazard ranking system (HRS) used to determine inclusion on the National Priorities List is not appropriate for a no further action decision under state law, and the state requirement is also recognized under federal law. Regardless of the HRS score, he state of Alaska expects BLM to clean up the petroleum and other hazardous substance releases and mitigate any exposure to contaminants left in place that may continue to pose a threat to human health of the environment. The HRS score may be used, however, to prioritize response actions under state law. We expect to review all of the hazard ranking system inputs for these 10 sites during our meeting. Alaska regulations governing contaminated site characterization and cleanup requirements and ADEC "eco- scoping"guidance were provided electronically. These requirements are pertinent to many of the Legacy Well sites.Your records will be reviewed for compliance with these requirements. Alaska's statutes, regulations and guidance are generally consistent with the BLM and EPA CERCLA process, therefore a PA and SI performed under CERCLA will typically be compliant with state law as well. Screening levels must be developed under both state and federal guidelines in order to select the most applicable or relevant and appropriate requirement. A site inspection report will include identification of contaminants of concern, selection of screening levels, site inspections to determine the presence or absence of these contaminants, an evaluation of exposure pathways, and recommendations based on the investigation. At a minimum ADEC expects to see the SI report for each of the sites below, any workplans and workplan approvals for the environmental site work and sampling, and the Preliminary Assessment (PA) performed prior to the Site Inspection. Reports that include data should have all lab reports, data quality analysis,lab review checklist, chain of custody and other data submittals attached. PA reports should have historical reports and documents attached as appendices along with a summary of the historical information to guide the site inspection. Please have all appendices, figures, and photos for the reports as well. Requested Meeting to review SI reports on these 10 well sites with BLM BLM 2013 Well Name Operator Risk Priority Ikpikpuk#1 USGS Low Koluktak#1 USGS Low South Meade #1 USGS Low Tunalik #1 USGS Low • East Simpson#2 USGS Low Cape Halkett#1 ** US Navy Low Inigok#1 USGS Low East Teshekpuk#1. USGS None Skull Cliff Core Test#1 US Navy High Kaolak#1 US Navy Low ADEC appreciates BLM's offer to meet to clear up our confusion about the environmental investigations you did at these sites. Our agency was previously unaware that BLM performed Site Inspection investigations at these sites. Our concerns were based on the fact that when site inspections were performed by the US Army Corps of Engineers at 11 legacy well sites around Umiat all of them were found to be contaminated and 9 of those sites required remedial action. These SI reports of your investigations will certainly alleviate the ADEC concerns that further removal actions may be required at the other legacy well sites. To prevent further misunderstandings like this we would also like to discuss how our agencies can cooperate in the future so that your future sampling is conducted in compliance with both state and federal laws. Workplan approval and ADEC oversight of these types of investigations is a state requirement. Please schedule this meeting as soon as possible with Mr. Fred Vreeman at (907) 451-2181. The enclosed "ADEC Information Request" describes the minimum information expected in your response. Additional information may needed to evaluate the risks and responses required at each legacy well site. United States Department of the Interior i �.....__`i kBURE,E` AU OF LAND MANAGEMENT imitic drV i ` +V'' Alaska State Office 222 West Seventh Avenue,#13 Anchorage,Alaska 99513-7504 http://www_blm.Qov In Reply Refer To: 6717 (AK9300) MAR i 1 20' Mr. Larry Hartig Commissioner Alaska Department of Environmental Conservation P. 0. Box 111800 Juneau,Alaska 99811-1800 Dear Commissioner Hartig: We are in receipt of a Potential Responsibility Party Notice Letter and Information Request from the Alaska Department of Environmental Conservation dated February 4, 2014. As stated in our August 28, 20I3 response (enclosed)to your July 11 letter, the BLM is eager to continue working with the Alaska Department of Environmental Conservation as we implement the 2013 Legacy Well Strategic Plan. The BLM's 2013 Legacy Well Summary Report included site history, land status and operator history for each well site, as well as a site by site risk ranking based on information collected during site inspections. As part of the BLM's surface risk assessment process, site inspection reports documented any indication of contaminant release or visible contaminants. My staff is available to discuss any questions that ADEC has concerning potential releases on a site by site basis. Much of the information requested in your letter is available in the Summary Report, and additional information can also be provided. The BLM would like to sit down with representatives of your agency as soon as possible to discuss and share information about wells of concern. My staff will be in contact with your staff in the coming days to schedule a meeting and develop a process to address the issues raised. Please feel free to contact me if you have further questions. Sincerely, .tiABud C.Crib ey State Director Enclosure cc: Fred Vreeman, ADEC Lynn Kent,ADEC Kristen Ryan, ADEC Lori Aldrich, ADEC Steve Bainbridget, ADEC Jennifer Roberts,ADEC o>r r • THE STATE Department of Environmental 011-1LASKL'1 GOVERNOR SEAN PARNELL RECEIVED FEB 0 7 2014 February 4, 2014 A0GCC Certified Mail, Return Receipt Requested Article No.: 7012 2210 0002 1216 2391 Wayne Svejnoha BLM — Division of Resources 222 W 7th Ave, #13 Anchorage, Alaska 99513 Conservation Division of Spill Prevention and Response Contaminated Sites Program File: 320.38.010 SCANNED 0 2 2014 Re: Potentiall Responsible Party Notice Letter and Information Request NPRA Legacy Wells - General Hazard ID: 26125 Ledger Code: 14339387 Dear Mr. Svejnoha: 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.5105 This letter is to advise you that the Alaska Department of Environmental Conservation (ADEC) has identified the 136 legacy wells within the National Petroleum Reserve in Alaska (NPRA) as potential contaminated sites. Some of these wells require extensive cleanup of oil and other hazardous substances released to the environment. Since you are identified as a current or past owner and/or operator of these sites, please be advised you may be financially responsible or liable for the investigation and /or cleanup of any hazardous substance contamination that might be present. Alaska Statute 46.03.822 establishes who is liable for contamination. Records available to the ADEC indicate that you meet one or more of the following criteria: » owned or controlled the hazardous substance at the time of its release; » own(ed) or operate(d) the property or facility from which the release occurred; » owned or operated property at which the hazardous substance came to be located; and » arranged for transport, disposal or treatment of hazardous substances that were released. Site History From 1944 through 1982 the US Government drilled 136 wells to explore for oil and gas resources in the NPRA. It is our understanding that other federal agencies and some private companies may have operated or managed these sites in the past. We have also been informed that 23 of these well have been conveyed to public and private entities. The ADEC currently lists 14 of the 136 legacy wells on our database of contaminated sites. The Bureau of Land Management (BLM) is identified as the responsible party for the following sites. Wayne Svejnoha 0 2 February 4, 2014 • BLM Cape Halkett Drill Site (File # 300.38.108) • BLM East Simpson #2 (File # 300.38.109) • BLM East Teshekpuk Drill Site (File # 300.38.110) The U.S. Army Corps of Engineers, under the Formerly Used Defense Sites program, is working with ADEC under the Defense States Memorandum of Agreement on cleanup actions at the 11 Umiat test well sites. BLM is identified as the landowner in our records, and as such is identified as a potentially responsible party in addition to the Department of Defense: C Umiat Test Wells 1-11 (File # 335.38.001) The information contained in these files is part of the public record. Our databases are accessible on the Internet at: http://dec.alaska.gov/spar/csp/db_search.httn Additional Actions Needed ADEC sent a letter on July 11, 2013, identifying an additional 15 legacy well sites with confirmed releases (enclosed). As stated in the letter, ADEC recommends that BLM develop a plan to address known, suspected, and unknown releases at the legacy well sites, in coordination with the appropriate regulatory agencies. We expected a response to this letter before now. Please respond to this letter within 30 days. After we receive and review your response we will determine what additional actions will be taken regarding each site with known or suspected contamination. In addition, with your response, please complete and return the enclosed questionnaire requesting more information about past operators. In accordance with Alaska Statute Title 46, ADEC is authorized to provide regulatory oversight for any contamination response efforts initiated by the responsible party. However, if response actions by the responsible party are not satisfactory to ADEC, we may then assume the lead role in the investigation and cleanup efforts. In the event that State response actions are necessary, the responsible parties may be held financially liable for any response actions taken by the State. Alaska Statutes 46.04.010 and 46.08.070 establish cost recovery procedures for certain costs, including oversight activities, incurred by the State in responding to pollution incidents. If you are determined to be a responsible or liable party, ADEC may bill you at a later date for our expenditures associated with this pollution incident. Expenses for which we may seek reimbursement include: Staff time associated with general or technical assistance; work plan review; project oversight; general project management; legal services; interest; travel; equipment and supplies; and any contracting costs. Pursuant to Alaska Statute 46.08.075, the State may also file liens against all property owned by a person who is responsible or liable for State expenditures. Please respond in writing within thirty (30) days from the date of this letter addressing your intended actions with respect to this pollution incident. If you believe someone else is responsible for this pollution incident (e.g., a past owner or operation of the site) or if you have any questions concerning this matter, please contact Mr. Fred Vreeman at (907) 451-2181. The attached "ADEC Information Request" describes the minimum information expected in your response. Additional information may needed to evaluate the risks and responses required at each legacy well site. Sincerely, Fred Vreeman Environmental Program Manager G:\SPAR\CS\Contaminated Site Files (38)\320 National Petro Reserve Area\320.38.010 NPRA Legacy Wells General\2-2-2014 Letter\PRP Letter All Wells.docx Wayne Sveinoha Enclosure: 0 3 • ADEC Information Request Concerning Contaminated Sites BLM Legacy Wells Dispute letter date July 11, 2013 February 4, 2014 cc: Bud Cribley, Director, Bureau of Land Management Steven Cohn, Deputy Director, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer, Bureau of Land Management Larry Hartig, Commissioner, Alaska Department of Environmental Conservation Lynn Kent, Deputy Commissioner, Alaska Department of Environmental Conservation Kristen Ryan, Director, Alaska Department of Environmental Conservation Lori Aldrich, Program Manager, Alaska Department of Environmental Conservation Steve Bainbridge, Program Manager, Alaska Department of Environmental Conservation Jennifer Roberts, Program Manager, Alaska Department of Environmental Conservation ADEC Response Fund Administration GASPAR\CS\Contarr nmted Site Files (38)\320 National Petro Reserve Area\320.38.010 NPRA Legacy Wells General\2-2-2014 Letter\PRP Letter All Wells.docx 0 0 ADEC INFORMATION REQUEST Concerning a contaminated site(s) Re: Legacy Well Sites in and near the National Petroleum Reserve, Alaska (NPRA) Please precede each answer with the number of the question to which it corresponds. Please direct any questions concerning this information request to Fred Vreeman, Contaminated Sites Program, 610 University Avenue, Fairbanks, AK 99709; Phone: 907-451-2181. Thank you for your cooperation. 1. Provide name and company affiliation of the person answering the questionnaire. 2. Provide copies of all studies, reports, and supporting information (including preaquisition assessments and work done on behalf of other parties) which you have knowledge of which address past and/or present environmental conditions at the site. Identify the name, title, address, and phone number of the party(s) who are responsible for preparing the studies or information. Information which has been previously submitted to ADEC need not be submitted again (unless specifically requested in a subsequent communication) if you can provide the name of the office (and name and title of the DEC officer if known) to whom the report was previously provided. 3. Provide a description of any ongoing or planned investigations or cleanup work at the site. Identify the names, titles and phone numbers of the individuals responsible for preparing the studies or information. 4. Provide a description of known releases at the site (date of occurrence, quantity released, type of substance released, etc.) and a description of corrective measures that were taken. Provide information on any suspected releases which may have or are occurring. 5. Describe the nature of past and present operations at the site. In particular, any actions that may have caused the release or threat of release at the site. Describe the physical characteristics of the site including major structures, water wells, fuel or waste storage systems, drainage or septic systems, etc. 6. Provide a list of any permits issued by the Department which relate to activities at the site and a list of RCRA identification numbers (U.S. EPA identification numbers) which may be held. 7. Identify persons to whom you leased all or a portion of the property and describe the nature of their operations. 8. Identify the person(s) who used the site for disposal of substances deposited there, if any. 9. Provide copies of manifests for any hazardous waste and/or petroleum contaminated materials taken to or from the site. 10. Provide a list of persons and their phone numbers and addresses of persons who have knowledge about the use of hazardous substances at the site. 11. Provide information regarding the existence of insurance coverage for damages resulting from releases of hazardous substances and copies of all such insurance policies, both currently in effect and in effect during the periods of activity in question. 12. Describe the acts or omissions of any person, other than your employees, agents, or those persons with whom you had a contractual relationship, that may have caused the release or threat of release of hazardous substances at the site. a. In addition, describe all precautions that you took against foreseeable acts or omissions of any such third parties. 13. Describe the care you exercised with respect to the hazardous substances found at the site. 14. Describe the physical characteristics of the site including structures, wells, drainage systems, etc. THE STATE July 11, 2013 'ALASKA GOVERNOR SEAN PARNELL Wayne Svejnoha Supervisory Minerals & Energy Specialist 222 W 7th Avenue, #13 Anchorage, Alaska 99513 Re: BLM Legacy Wells Dispute Dear Mr. Svejnoha: Department of Environmental Conservation Division of Spill Prevention and Response Contaminated Sites Program 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.2155 The Alaska Department of Environmental Conservation (ADEC) — Contaminated Sites has reviewed the National Petroleum Reserve in Alaska: 2013 Legacy Wells Summary Report dated February 2013, containing updated information on the status of the 136 Legacy Wells located in the National Petroleum Reserve — Alaska (NPR -A), and the draft National Petroleum Reserve in Alaslm. 2013 Legacy Weiss Strategic Plan dated May 2013. ADEC has also reviewed the response by the Alaska Oil and Gas Conservation Commission (AOGC). We concur with the response by ACIGC and have no further comment regarding the priorities. We do have comments about the investigation and cleanup plans presented in the report. With this letter we arc outlining regulatory requirements related to the environmental work that is proposed and required as part of these cleanups. ADEC is concerned that the 2013 Legacy Wells Strategic Plan prepared by the BLM does not include either assessment of the contingency for assessment of known, likely, or unknown but possible contaminant releases. In addition, BLM plans for surface cleanup of these wells should be made clear in the plan. At least one of these legacy wells has extensive PCB contamination and has resulted in a multi-year cleanup totaling tens of millions of dollars. At others, solid waste disposal practices have resulted in releases to the environment with estimated cleanup costs in the hundreds of millions. Known releases documented in the records we reviewed include crude oil, gasses, refined oil and fuel, drilling fluids that include various organics, metals, and other chemicals, and unknown contaminants from drums and other containers observed to be damaged and abandoned at the various well sites. There are 13 legacy well sites with known releases currently on the DEC contaminated sites list. Many of these are in the process of being addressed, cleaned up, and closed. From our Waited records review there are 15 additional legacy well sites with confirmed releases. These should be prioritized for initial records reviews and then added to the BLM contaminated sites list under our cooperative agreement. Suspected releases include fuel releases from operations, storage, and fuel spills at the sites, impacts to various surface water bodies from spilled fluids during drilling and breaches of containment at reserve and flare pits, continued surface runoff from drilling fluids uncontained at several sites, and down -hole substances that were ejected from the holes over time or during blowouts or drilling operations. 1 Wayne Sve noha ? July 11, 2013 Y The.BLN-1 plan to address these known, suspected, and unknown releases at legacy well sites is notably absent from the documents presented to date. The three primary regulatory agencies that need to be involved in the plan are ADEC — Contaminated Sites, Alaska Oil & Gas Conservation Commission, and ADEC — EH/Solid Waste. Other agencies will need to be consulted. as well. Below we provide recommendations for a coordinated plan using the Uniform Federal Policy for Quality Assurance Project Plans (UFP-QAPP) that will involve all of the regulatory agencies in one coordinated manner. This will allow BLM to address these sites in a consistent and coordinated project which fulfills all of the regulatory requirements so that the sites do not need to be re -visited in the fu=e xvhen they are closed after this project. Attached are our comments on each specific well. The acronyms used on the list include terms that are typically used in a CERCLA type investigation however they are also suitable for investigations conducted under the State of Alaska cleanup rules. These include the following; Historical Records Review (HRR) 'chis is recommended for almost all of the well sites. Much of the information required for these reviews is already contained in various reports and appendices or in BLM files. The Historical Records Review should document the type of releases that might have occurred from drilling operations as well as historical use of the site, and should capture all available information on the drilling fluids used and any product produced or released. Preliminary Assessment (PA) This is recommended for almost all of the well sites. A Preliminary Assessment is a limited scope investigation that provides an assessment of information about a site and its surrounding area to distinguish between sites that pose little or no threat to human health or the environment and sites that require further investigation. The PA is a CERCLA defined document and typically does not require sampling. Site Inspection (SI) If the PA recommends further investigation, then an SI is necessary. The SI is a CERCLA defined document, and it is analogous to an initial report of contamination under state cleanup rules. On some legacy well drillings sites it is evident now that an Sl is required just from a review of the reports. An SI investigation typically includes the collection of samples to determine what contaminants are present at the site and whether they are being released into the environment. An approved site specific workplan is required under both CERCL-A and 18 AAC 75 prior to SI sampling. The SI typically is not intended to develop a full site characterization, but is limited to determining the presence or absence of a release. If contamination is found after completion of the HRR, PA, and SI then a RI/FS under CERCLA, or a Site Characte-rizatiowlteportandcleanup-Alas,under-l-fi-AAC7iis`required. -- ----- - -- — --------- - DEC recommends that BLM incorporate into the strategic pian the processes outlined in this letter. A team of agencies composed of AOGC, DEC -CS, EPA as required, and DEC -EH should address regulatory and technical requirements for these well closures. By cooperating and working together with the regulatory agencies BLM will save time and expense, and regulatory uncertainties will be avoided. The strategic plan should reference a project to prepare a generic workplan. DEC suggests that BLM utilize the generic UFP-QAPP workplan format for the required environmental work. If properly prepared, the workplan could encompass most of the investigations and cleanups required at these sites over multiple years. At other multi -site projects we have found this to be an effective way to reduce uncertainties and risk in these types of investigations. A very small site specific FSP could then be developed as BLM approaches each drilling site. Regulatory decisions made during workplan development would provide more certainty in the planning process for cleanups. G:\SPAR\CS\federal F2cilitie3\Ci%ih2n 1-cdcrrt Agr=ics\DOl\B[.nl\1'roiens\lxgAey Wells\7 11 13 Luter to KIN on lxbxy wells.doex Wayne Svejnoha 3 0 July 11, 2013 Please review the attached list of specific sites. If you have any questions, please do not hesitate to call me at 907-451-2181 or by email at fred.vreeman@alaska.gov. I look forward to working with you as the Federal Government fulfills its requirement to clean up these well drilling sites in Alaska. Sincerely, y' Fred Vreeman Environmental Program Manager Enclosure: SPAR Response with Legacy Wells cc: Bud Cribley, State Director, Bureau of Land Management Steven Cohn, Deputy State Director for Resources, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer, Bureau of Land Management Cathy Foerster, Commissioner, Alaska Oil and Gas Conservation Commission Larry Hartig, Commissioner, Alaska Department of Environmental Conservation Kristen Ryan, Director, ADEC Division of Spill Prevention and Response Steve Bainbridge, Program Manager, ADEC Contaminated Sites Program Jennifer Roberts, Program Manager, ADEC Contaminated Sites Program GASI'AR\CS\Fedcrrl Fo61ibLy\Gvi6n Falctul AgcnnCs\DOI\BI.N1\Proitcts\lA'6.1' q W03\7 11 1314tur to Aim\I on Ug2cy Wclls.doex Well Name operator I RP I Land Simpson Core Test #5 1! Na 1 BLM Simpson Core Test #6 US Na I BLM Simpson Core Test #7 us Na 1 Bl. M Sin son Core Test 98 US Navy 113LM Si son Core Test #9 U5 Na I BLM Sinwson Core Test #1f) U.S Navy! BLM Core Test #11 AOGCC Subsurlaca I BLM Core Test #12 FUSNa a I BLM Core Test #16 a 18LM Core Test #17 US Na 1 BLM Core Test 018 US Na I BLM Core Test #19 US Na 1 BLM t Core Test #20 US Navy 1 BLM i Gore Test #21 2S Na 1 BLM I Core Test #22 US Na 111•LM I Core Test dnlf fluids left in hole i BLM Core Test �#2vy I BLhA n CareTest #25 US Na Y I BLM K Core #1 US Navy i BLM 1 -t- *1 SPAR Response with Legacy Wells Lisl.xlsx 2013 Risk Ity CSP Status I Fito tllHazid Rolea5e7 Nnne None IYOMWil Low RNooe ane Nona Unused, Unused. I None Unused, i None Uncased, None None None None (None Unknown Unknown Page 1 of 14 •I AOGCC Subsurlaca AOGCC Surface SPAR W arkgroup Notes Status Status Need HRR, PA, S1 no data no data Need HRR. PA. SI no data no data Need PA ind drill fluid assessnsenl & workplan drillin 11uids left in hole no data Need PA ind drill fluid assessment & work an drilling fluids left in hole no data Need PA incl drill Ifusd assessment & work Ian dnlf fluids left in hole no data Need PA nc drill fluid assessmcnf &work Ian dnllxs fluids left rn hale no data well skc-lch provided by Need PA ind drill fluid BLM not consistent with assessment & work Ian AOGCC or BLM data no data Need PA ind drill fluid assessment & work Ian dnflin fluids left in hole no data Need PA and 51 ind 13611 fluid assessment. workplan rid sampling stressed debfis, partially as blowout and fire rove elated site areas Need PA incl drill fluid assessment & workplan dn lling fluids left in hole no data geed PA ind drill fluid assessment & wOTk Ian drij I ing fluids teff in hole no data Need PA incl dfifl nutd assessment & work Ian drillin fluids left m holo no data Need PA incl drill fluid assessment & work Ian drillin ituids left in hole no data Need HRR. PA, SI no data no data Need PA incl drill fluid assessment & work Ian drillin fluids felt in hole ria data Need PA incl dnll fluid assessment & work larx drillin fluids left in hole no data Need PA incl drill fluid assessment & work Ian drillin fluids Teff in hole no data Need PA ind dnll fluid drflfing fluids and ball assessment & work len peen hammer left in hole no data overshot, drill collar, rock revegelated —131 Need HRR, PA bit, and N -reds left in hole can't find it Review Report as PA. No evidence of sheen, stressed veg, or drilling Not abandoned, waste on surface. Veg ----_— , ,raw,, plunaed to surface site not cleared •I SPAR Response with Legacy Wells LisLxlsx Page 2 of 14 is • vi nce o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP I Land Mgr Priority CSP Status file #IHazid Release? SPAR Workgroup Notes Status Status plugging operations inadequate and Wellhead tell as Umiat 43 US Navy I BLM I FUDS None pending dos 335.38.00113092 Yes. see file 'Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umiat #4 US Navy I BLM / FUDS None pending dos 335.38.001!3079 Yes, see file Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umial 98 US NaMy I BLM I FUDS None pendinq dos 335.38.001/3D81 'Yes, see_ _file Plugged BLM in 2004 incomplete historic sile? plugging operations inadequate and Wellhead left as Umiat #1'0 US Navyj BLM_I FUDS None pendingdos 335.38.00113082 Yes, see fila Plu ed by BLM in 2004 incomplete historic site? Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 7868'. Drilling Cleanup. Photos - evidence mud and diesel to Awuna #1 USGS I BLM Medium None None Yes of erosion into lake surface. > 100 _Pylons Need HRR, PA, SI with sampling. Drilling mud Wood , metal, assessment. Surface Plugged to 2039'. Diesel plastic debris. Fast Simpson #1 USGS I BLM Low None None Yes Cleanup. to surface. >10D Pylons Need HRR, PA, SI with Wood and metal Drilling mud assessment debris. Pylons - Photos straw areas of no Plugged to 2047'. Diesel Tankage for lk ' #1 USGS / 8LM Low None None Yes ve elation. to surface. flammable fluids Need HRR. PA, SI wdh sampling. Drilling mud assessment. Surface Plugged to 1400'. Drilling Wood and metal Koluktak #1 USGS I BLM Low None None LYes Cleanup. mud & diesel to surface debris Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 1894'. Diesel Wood and metal Ku am 91 USGS I BLM Low None None Unknown Cleanup. to surface debris. Pylons Need HRR, PA, Sl with sampling_ Drilling mud assessment_ Surface Plugged to 4464'. Drilling Wood & metal Kuyanak #1 USGS I BLM Low None None Yes Clean mud & diesel to surface debris. Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Photos show Plugged to 1840'. Diesel Plastic and metal Lisburne 41 USGS I BLM Low None None Yes stained soil to surface debris. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 8192'. Drilling Wood and metal North Iii ok $1 USGS I BLM Low None INone Yes Cleanup. mud & diesel to surface debris - Page 2 of 14 is • Well Name Peard South Meade #1 1 RP 1 Land 1BLM BLM #1 4USGS ! BLM SPAR Response with Legacy Wells Usl.xlsx ;013 Risk &W CSP Status File XlHazkl T Page 3 of 14 AOGCC Subsurface AOGCC Surface WAR Workgroup Notes Status r Status � deed HERR, PA SI with iampling. Dining mud rssessment- Surface ;leanup. Site photos show areas of stressed iegetalion. No issues Plugged to 2232'. Diesel Wood and metal soled in USGS re ort. to surface debris. Pylons Need HRR, PA, SI with sampling_ Drilling mud assessment Surface Plugged to 2026'. Diesel Wood and metal Cleanup. to surface debris. P Ions Add to She list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Od reported bubbling to the surface within reserve pit in 1982. Oily residue and sheen observed adjacent to east side of reserve pil, down hole material at the Plugged to 1875. Diesel Wood and metal surface to surface debris. P ons Add to Site list. Need HRR, PA, S) with sampl'uig. Drilling mud assessment - Surface Cleanup. Reserve pit berm had breaches anowirrg water to exit. Oil - stained sediment was observed above the Plugged to 1478'. Diesel Wood and metal waterline of the I. to surface debris. Site photos may show hydrocarbon sheen on Plugged to 2600'. Drilling Wood and metal water in well cellar mud & diesel to surface debris. Pylons Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Berms have been breached an allow water to flow out of reserve piUllare pit. Rising bubbles of ail observed in Hare pit 1484. Photos Show Plugged to 1825'. Diesel Metal debris. ra.. v-1 v.nnnralinn to Surface ... 0 •I SPAR Response with Legacy Wells Lisl.xlsx Page 4 of 114 0 0 vi encs o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator 1 RP f Land Mgr Priority CSP Status File #fHazld Release? SPAR Workgroup Motes Status Status Need HRR, PA, Sl wrlh sampling. Drilling mud assessment Surface Cleanup. Breaches in bemi allow water to flow into and out of reserve pit, sheen on Plugged to 2700' Diesel Wood and metal West Dease #1 USGS l BLM Low Nona None Yes surface water in well cellar to surface debns. Pylons Add to Site list. Need HRR,. PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Water flows into the pits through breaches on the eastern berm and out of the pits through breaches on the northern and western berms. Downhole material Plugged to 228'9'. Drilling Wood and metal South Harrison Bay #1 USGS f BLAB Low None None es Present at surface mud & diesel to surface debris. Add to Site list. Need HRR, PA, SI with sampliing. Drilling mud assessment. Surface Cleanup. Stressed vegetation noted and apparent in site pholos. Plugged to 2443'. Drilling West Fish Creek #1 USGS 1 BLM Low None None Yes Drilling mud around well mud & diesel to surface Pylons Need HRR, PA, SI with sampling. Drilling mud assessment, Surface Cleanup. High TPH Plugged to 1977'_ Drilling wellhead sticking concentrations underneath mud under plugs. Diesel up. Wood debris. Fast Simpson #2 USGS 1 BLM I Low _ Active 300.38.10912691 Yes, see file the rig inundation to surface Pylons South Barrow 94 US NavyiNorth Slope Bono None None None Unknown Need Surface Status completed gas well - no data South Barrow #5 USAF - BLM Unknown None None None. Unknown Need Surface Status completed gas well no data South Barrow #& US Na /Norlh Sto Burg None None None Unknown Need HRR, PA, St no data no data South Barrow #9 US NavyfNarih Slop2 Boro None None None Unknown Need HRR, PA, Sl no data no data _ South Barrow #10 US Navyfflorlh Sto Bora None None None Unknown Need Surface Status com ted gas well no data South Barrow It12 US Na /North Slope Baro None None None Unknown Need HRR, PA. Sl no data no data BLM well skMh not consistent with AOGCC South Barrow #14 US NavyMorth Sloe Boro None None one Unknown Nsed HRR. PA, St data no data Need PA ind drill fluid well left filled with drilling South Barrow #16 US NavyiNotih Slope Bora None None None Unknown assessment & workplan mud and diesel no data Need PA incl drill !turd tubing in well. no perfs, Soulh Barrow 017 US Na /North Sloe 13ora None None None jUnknown assessment & work fan I unknown fluid, I no data Page 4 of 114 0 0 SPAR Response with Legacy Wells Lisl.xisx Page 5 of 14 •I E CYfuu .v v AOGCC Subsurface A Surlaco TEHILM T013 Risk CSP Stilus File #IHaaid Historic Rekeasa7 SFAR YUnrkgroup Nates 5latus at US $1<ntus Well Name flperatar f RP f Land Mgriority Unknown Need Surface Status corn feted as well no data 5aulh Barrow #18 US Na INorlh Slo a Bora None None None Unknown Need HRR, PA, St no data no data Walak a #1 USGS! Unknown None None None rsg 890`. Multiple cement plugs of unknown volume. Shallowest None None Unknown _ Need HRR, PA, SI SOD' no dada Gubik #1 US Na d Ur#cnown Low Add to Site list. Need HRR. PA. SI with sampling. csg Q SOD' Well blowout Drilling mud assessment. from zone al 1SOT during Surface Cleanup. Photos plugging operations show disturbed/ slashed Plugging never completed after blowout. no data Gub* #2 US Na ! Unknown Low None Nora es areas two downhole Dement plugs of unknown depth Mone None Unknown Need MR. PA. Sl and volume no data Grandstand #1 US Navy 1 Unknown None Add to Site list. Need HRR. PA, SI with sampling. Dnliing mud assessment. Surface Cleanup Sediment from the reserve pit was excavated and spread over the pad to drill a 2nd well at this location, Upon completion of the 2nd well. the sediment was pushed back into ft reserve pit.. Area does not appear to be revegetaling. perhaps from the presence property plugged but no of drilling mud at the data on abandonment None None Yes surface status no data W 7 Foran #1 " USGS I Unknown Low on Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Slressed vegetation, photos show plugged, but not open csg; metal & Active 306.3$.108f2689 Yes. see file site underwater abandoned at surface corwsele debris under 5' of water, Cape Halken #1 " US Na (Unknown Low None Unknown !Need HRR, PA. SI es to 27' open C_s Min a Veloei #1 U5 Na f t3LM one None csg @ 31" 280' of drill pipe, drill collar, and Core Unknown Need HRR. PA, SL barrel left rn hole. rove etaled Ournalik Core #i US Na / BLM None -No obsery None !None Page 5 of 14 •I E SPAR Response with Legacy Wells Lisi.xlsx Page 6 of 14 • • WI F3nCe Q BLM 2013 Risk Historic AOGCC Subsurface ADGCC Surface Well Name Operator t RP I Land Mgr Priority CSP Status File #IHazid Release? SPAR Workgroup Notes Status Status Need HRR, PA, Workplan for St with Sampling. Drilling Mud Assessment. Surface Cleanup. Photos show debris, stressed No csg. 15' of drift pipe Oumalik Caro #2 US Navy 1 ULM Low None None yes ve elation and rock hit left in hole. no data Need HRR, PA, Workplan for Si with Sampling open csg & other Drillip) Mud Assessment. piping sticking out Surface Cleanup_ Reports of ground; wood, of debris, drilling muds on melat, conciele Oumalik Core 011 US Navy 1 BLM Low None None Yes surface (__q to 9', debris open csg sticking out of ground; wood & metal 0umalik Core #12 US Navy I BLM Low None None No Need HRR, PA, SI no data —__—debris _„ debris buried by landslide. Need HRR, PA, St, Well not no dala on Sentinel Hill #1 US Navy 1 BLM Low None None Unknown ap panent in site Rholos Csq to 3t1'. underwater status Need IQR, PA, SI. No evidence of sheen, open crag slightly stressed veg, or drilling above ground waste on surface. Veg 37' of csg, drilling fluids level; wood and S imp son Core Test #1 US Navy 1 BLM Low None None No appears healthy lett in hole metal debris Need HRR, PA, St. No evidence of sheen, stressed veg, or drilling waste on surface_ Veg 76'01 Csg, drilling fluids Simpson Core Test #2 US Navy I BLM Low None None No appears healthy left in hate no data Need HRR, PA, Sl. No evidence of sheen, stressed veg, or drilling waste an surface. Veg 61' of csg, drilling fluids Sim sun Core Test #3 US Navy I BLM Low None None No appears healthy left in hole no data Need HRR, PA, St. No evidence of sheen, stressed veg, ordrilling waste on surface. Veg --60' of crag, drilling fluids Sim eson Core Test #4 US Nayy t BLM Low Norse None No apecars healthy left in hole no data Need HRR, PA, St. No evidence of sheen, stressed veg, or drilling waste on surface. Veg csg cemented @25% open csg sticking Songsoncore Test #13 US Na 1 BLM Low None None No appears health dritin fluids IeR in hole_ out of round Need HRR, PA, SI. Vegetated, no evidence of crag cemented @2D'; open csg sticking Simpson Core Test #14 US Navy ! BLM Low None None No release. drillin fluids left in hole out of ground Page 6 of 14 • • SPAR Response with Legacy Wells Lisl.xlsx ism son Core Fest #26 t=vrdence or Medium AOGCC Subsur(aen ADGGC Surface 13LM 2013 Risk CSP Status File WHazid Historic Retease7 SPAR Wwkgroup Notes Status Status Well Name operator r RP 1 Land Mgr Priority Unko Need HRR, PA. SL US Na ! $LM open casing None Nave Vegetated. no ev4dence of cog set shallow; drilling slicking nut of Low No release- fluids left in hole round Simpson Core Teri #14a US Na !BLM Low None None & weilhead slick Need HRR. PA, SI crude nil left in hole open casing Need HIR, PA, Workplan Vegetated, no e+wdence of csg cemented 12181; slicking out of openregd ng No release. drillingfluid left in hole round Simoson Care Tesl #15 US Na !BLM Low None None d wooden Oellar, Need HRR, PP, SL Sate a9 r�110'. dolling fluids wood 8 metal ism son Core Fest #26 US Na ! BLM Medium None None res Sim sen Core Test 027 US Na J 13LM IJone None None Unko Sim son Gore Test #28 US Na ! $LM Low None Nave Yes clmnnnn Core Tesl #29 US Navy! BLM Low Norte No No Simpson Core Test 030 US Na 1 !BLM Core Test #30a JUS,Navy 1 BLM Low `None Prone n Gore Test #31 JUS Navy/ BLM None Page 7o(14 photos appear to show oil at surface, from a natural csg Q 350'. Completed in oil seep, seep, also drilling mud in oil well Open perfs. At 1welhead sticking sacks on the tundra one lime capable of up_ metal debris PI u ed b BLM in 2004. unassisled flow. and rustingbarrels 'Need HRR, PA, St. Site photos appear to show Oil csg cemented at surface, from a natural @i02;dnllutg fluids nn oily ground; csg seep- Plugged by BLM in including diesel and & weilhead slick vin 20014 crude nil left in hole out of ground Need HIR, PA, Workplan for Sl with Sampling- openregd ng ❑rilling Mud Assessment . out grouunnd in Surface Cleanup. Site d wooden Oellar, photos appear to show a p le of drilling mud about a9 r�110'. dolling fluids wood 8 metal 160 feel tram the welt tell in hole debris. Solid waste Need HRR, PA, Sl_ No evidence of sheen, stressed veg, or dri" waste on surface. Veg csg cemented at 1S2'; open csg. Wood a ears healthy dnknq fluids lett in hole and metal debris Need HRR, PA, SI. frilling mud at surface. but well is also in the middle of a large in oil seep; Open oil seep and surrounded by cog sticking up; pooled oil. Plugged by BLNI csg cemented A150'; wood & metal ser Holes in 20514- drillin fluids left in hole detail on oily ground; tog Need HRR. PA, Sl. Well is wellhead slick in the middle of a large oil seep and surrounded by csg cemented at 100% out of ground. pooled oil. Plugged by 131. dulling mud left in hole. wellhead leaking see noses in 2004 gas blowout at 423' gas Need HRR, PA, St. Leaky valve replaced in 2001, little evidence of contamination following valva on city ground; reg replacement- Plugged by csg cemented at 100'; & wellhead stick see notes BLM in 20174 iddifing fluids, left in hole out o1 round SPAR Response with Legacy Wells List.xlsx Page 8 of 14 • • yr enco o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator f RP f Land Mgr Priority CSP Status File glHasid Release? SPAR Workgroup Notes Status Status Need HRR PA, Workplan csg Cemente=d al for Sl with Sampling. 1028', cement plugs a1 Drilling Mud Assessment. 6387' and 5520'. Fish in Surface Cleanup. Drilling hole, drilling fluids Iefs in No data. Open Simpson Test Welt #1 ak US Navy1 BLM Low None INone yes muds near wellhead hale casing Need HRR, PA, Workplan for Sl with Sampling. Dolling Mud Assessment. Surface Cleanup Also Wellhead sticking evidence of a natural seep- above ground, Tar sheens in the summer ST from 2552 to 3018. wood, melel, and months. BLM is concerned csg @2915. Slotted liner concrete debris. Fish Creek #1 US Navy I BLM Medium None None Yes about exposure to wildlife to TO. Completed oil well Rusting barrels Need HRR, PA, Workplan for SI with Sampling. rasing cemented at 48; Drilling Mud Assessment. gas 0mv and explosion Surface Cleanup. Small gas while drilling at 863'; hole leak in wellhead flange, will Filled with fresh water to Wolf Creek 91 US Navy f BLM Low None Nano No flow if the valve iso en 330' No data. csg cemented a[ 53';hole left tilted with fresh water, Wolf Creek 02 US Navy 1 BLM Low Noire Nona No Need HRR. PA. Sl. fish in hole csg cemented at 107'; No data bridge plugs from 1447 to 1735 and from 554 to Wolf Creek #3 US Nayy I BLM Low None None No Meed HRR, PA, SI. 661, No data Add to Site list. Need HRR, PA, SI with sampling. csg slicking out of Drilling mud assessment ground with wood Surface Cleanup. Sheen on plug on top; solid surface water in well cellar, csg cemented at 30'; drill waste; wood hundreds of drums indicate pipe, drilling mud and debris; about 200 Skull Cliff Core iesl #1 US NaMy I BLM High None None Yes polential for cornlamrna[ion diesel left in hole nisling barrels Need HRR, PA, SI. Two open csg, wood drums are floating on a building; pylons; pond near the well. csg cemented at 1000', wood & metal Kaolak 01 US Navy 1 BLM t ow None jNone lNo Potential for hurried landfill. fdriltingluidsieftin hole debris Page 8 of 14 • • SPAR Response with Legacy Wells Lisl.xlsx 181-11119013 Risk Well Name Operator f RP ! land Mgr Priorlty CSP Status File 1NHazid #1 1 U Navy 19LM #1 JUS Navy/ umatik Ill US Na I BLM Low None None as[ Oumalik #i US Na !BLM Low None None #1 N East Topagoruk #1 USN l BLM Kniteblade #1 US Navy l BLM Page 9 of 14 Subsurface `AOGCC Surface SPAR Workgroup Notes Status Add to Site list. Need HRR, PA, SI with sampling. open flange Q Drilling mud assessment. Surface Cleanup. Drilling Gas well. Open ports. ground level. Mud pile overgrown with Drilling fluids and Metal & wood v , etallon and lichen tubulars lett in hole debris Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling csg cemented at 502'; open casing slicking out of waste on surface. Veg plug at 3470 to 3511'; ground. Wood appears heall drilling nuids left in hole debris. Open casing below Add to Site list. Need HRR, ground level. PA, SI with sampling- Revegetated. Drilling mud assessment. Numerous metal Surface Cleanup. Debris csg partially cemented at I support structures and drilling muds. Stressed 2762'. Plug at 2543% slicking up. vegetation Dridin mud left in hole Concrete debris, plate welded to pipe: l' of pipe rsg cemented at 1100'. sticking up - Need HRR. PA. SI. Drig fluids left in hole Wooden debris. Add to Site list. Need HRR, PA, SI with sampling. Driving mud assessment. open csg broken Surface Cleanup. Downhole material present csg cemented at 6073'. off and sticking up: at surface, area mostly original hole drilled to wood, metal, revegetated. Diesel still 7154'& junk len; concrete and other occupies the ground sidetrack hole left wilh debris. rusting dreulatioir lines. drillina fluids barrel Add to Site list. Need HRR, PA, SI with sampling. Dolling mud assessment. Surface Cleanup. Pile of tsg 10 1100'; pkig al open casing drilling muds is next to the 1049% drilling mud below sticking up. Wood, teller. No offical reserve pit plug: unknown fluids in metal, and glass noted o en hole debris. open casing Need HRR, PA, SI. BLM sticking up. Wood, stales that there was no metal, and glass debris at this site in 2012. csg cemented at 420% debris - •I 0 SPAR Response with Legacy Welts Lisl.xlsx Paye 10 of 14 0 0 w once a BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP f Land Mgr Priority CSP Status File #IHazid Release? SPAR Workgroup Notes Status v F Status open casing sticking up. Wood, metal, & concrete debris rusting Need NRR, PA, SI. Reports barrels. One indicate solid waste csg cemented to 45';fish marked flammable Knileblade #2 US Navy I BLM Low None None No drums in hole hazard. open casing slicking up; metal & Krideblade #2a US Navy 1 BLM Low None None No Need HRR, PA, SI. csq cemented at 38% concrete debris Need HRR, PA, SI including learning assessment. Site partially No wellhead. submerged intermittently csg cemented at 80; Metal. Solid waste North Simpson Test Wel 4 US N2n I BLM Low None None No during the summer dri0ing fluids left in hole ? No dala crude wellhead. Need HRR, PA, St. Surface csg cemented at 685'; Wood and metal Umiat 01 US Navy J BLM I FUDS Medium Cleanup co 335.38.00113090 Yes, see file Cleanup drillinq fluids left in bole debris No wellhead. Gravel pad partially csg cemented a1486; revegelaled wood Need HRR, PA, SI. Surface cement plug from 440 to debris and pipe Umiat #i t US Na I BLM I FURS Low pending dos 335.38.00113083 Yes, see file Clea 490'; sticking u csg cemented at 7206'; vVefNwad- Gravel various plugs from 8250' pad revegetaled 7 South Sirnpson 01 US Navy I BLM Low None None Yes Need HRR, PA, SI. to surface No data Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Large quantifies of ferrous oxide, zinc oxide, zinc carbonate, and barium sulfate were added to drilling muds. Stains apparent in photos. BLM field camp an site. Walls between the reserve and Pare pits have eroded. Wellhead and Water flows into surface gravel pad. ? No Wook #1 USGS I BLM Low lNone Name Yes water during break22L no data data Paye 10 of 14 0 0 SPAR Response with Legacy Wells Lrsl.xlsx BLM 2x13 Risk Well Name 10porator I RP I Land Mgr Priority CSP Status I File #IHazid Arca- Barrow Cure #1 US Na l til.M Avak 01 US Navy I BLM Barrow Bi R' #1 US Na I BLM Barrow Cafe Rig Test 91 US Na I BLM #2 I US Navy I BLM #1JUS N,a I BLM H' h NOr1e None Test Well #1 US Test Well #2 US Barrow Test Wetl #31115 Na IN©r1h Slo c Bora IAedium None None Unknown Page 11 of 14 Subsurface -FAOGCC Surface SPAR IWorkgfoup Notes Status _ ___ araiu5 Need HRR, PA, SI. Surface Cleanup, Photo CIMG0218 csg cemented at 53` shows area of disturbed tubing hung to 708': hole open casing vegetation that should be heft filled with drilling mud slicking up; wood & investi algid durin Sf and diesel metal debris open casing Need HRR. PA, St. Surface csg cemeoled at BIF. sticking up; wood & Cleanu-. lu set at 1348' metal debris Not abandoned, site not cleared, Need HRR, PA, SI. Surface open easing 7? No Cleanup no data data Not abandoned, site not eteared, Need HRR. PA, SI. 'Surface open casing 77 No Cteanu no data data Need HRR, PA, St with sampling. trilling mud assessment. Surface Cleanup. Drilling Muds on Not abandoned, site -slowly revegelatmg site not igred, More information on drilling open casing 7? No mud specifics rs being researched no data data Need 1lRR, PA, SI wdh sampling. Drilling mud wellhead leaking assessment. Surface cemented Csg to gas!? Wood & Cleanup- Cellar does not 1270;slotted liner to metal debris. Area retain water 1956': tbg to 1939 affected 50'x50' Need HRR, PA. SI. Drilling Csg cemented at mud assessment. Surface 441'.hole Iell willed with open pipe; metal & Cleanup- On mads stem water concmie debris Need HRR, PA, Sl. Drilling Csg cemented al 2260'; mud assessment- Surface periorated liner to TD. wood, metal & Cleariu . fln road s stem lin Completed well. Conerete debris Need HRR, PA, SI with sampling and workplan. Drilling mud assessment. Surface Cleanup. Drilling +csg cemented at 10461: open c5g slinking mud at surface. Sheen on hole left filled with drilling up; wood & metal surface wafer in well cell larQuids and wafer. de" 0 SPAR Response with Legacy Wells Lisl.xlsx Well Flame Operator I RP I Land Mgr BLM 201$ Risk Priority CSP Status File #ltiazid yr once oF— Historic Release? SPAR Workgroup Notes AOGCC Subsurface Salus g AOGCC Surface Status no data. Likely revegetaled. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Tess A US Navy I BLM None-uncased hc None None lUnknown Need HRR, PA. not in AOGCC database Monlht Meeting no data. Likely revegetated. Removed from our fist of wells of concern in < 50', no csg, no API#, October, 2012 Cumalik Foundalion Test b US Navy I BLM None-uncased hC None jNane Unknown Need HRR. PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed From our irsl of wells of Concern In < 50', no csg. no API#, October, 2012 Oumalik Foundation Test A US Navy I BLM None-uncased hc None lNone Unknown Need HRR. PA, not m AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no c5g. no APF#. Odubut. 2012 Oumalik Foundation Test A US Navy I BLM None-uncased ht Nune lNone Unknown Need HRR, PA, nal in AOGCC database Monthiv Meetin no data. Likely revegetaled. Removed from our Ilst of wells of con cam in < 501, no csg, no APi#. October, 2012 Oumatik Foundation Test 0 US NavyI BLM None-uncased hc None None Unknown Need HRR. PA, not in AOGCC database Moral Meeting no data. Likely revegetaled. Removed from our list of wells of concern in < 50', no csg. no API#, October, 2012 Ournalik Foundation Test 4US Navy I BLM None4xwased h_j None None Unknown I Need HRR. PA, not in AOGCC database Month Meetin Page 12 of 14 0 Page 13 of 14 SPAR Response with Legacy Wells LrsLxisx Well Name BLM 2013 Risk Operator f RP I Land Mgr Priority Historic CSP Status Fife #IHazld Rslease7 AOGCC subsurface Status �__ - -_-�� . A013CC Surface Status no dala. Likely SPAR 1Norkgroup Nates revegelaled. Removed from our list of wells of concern in < 50'. no csg, no AP IN, October, 2012 Oumalik Foundation Test US Na!q BLM None -encased h None None Unknown Need HRR. PA. not w AOGCC database MonthlyMeetin no data. Likely revegelated. Removed from our list of wells of concern in < 501. no csg, no API#, October, 2012 Oumalik Foundalion rest U5 Na I BLM None -encased h None None Unknown Need HRR, PA, not in AOGCC database Monihl lAeeli no data. Likely revegetaled. Removed from aur fist of wells of concern in 0urn alik Foundation Test US Na 18 LM None -encased fi None None ilnknown Need HRR. PA, < 50', no csg. no API#, not in AOGCC database October, 2012 Month! Meetin no data. Likely revegetated. Removed from our list of wells of concern In < 50', no csg, no API#, October, 2012 Oumalik Foundat'Gon Test US Na I BLM None encased h Nome None Unknown Need HRR, PA, not m AOGCC database Month! Meeting property abandoned per then -applicable South Banow #7 US NEILM 2LI None None Unknown Need HRR. PA, ro erl lu ed re s no data to support proper Um -Qt 02 US N Noire Pendin Clo 335.30.001/3078 Yes, see file Plu d to surface abandonment no data to support proper Uncal #5 Ummt #9 Urrval A66 Umial #T Atiaaru Point#1 U5 US US Na I BL M US Na I BLM USGS/BLM None Pendin Hi h -PCB cleanu Active None Pendia None tPendi Mane Clo 3L5 313.00113079 335.38.00113093 Cao 335.3$.00113080 Clo 335 38 001I3091 None Yes, see file Yes, see file Yes, see file Yes. see lite No Plu ed E4 surface property plugged and abandoned pfupedy plugged and abandoned property plugged and abandoned Need HRR. PA,Plugged by properly plugged and BLM in 2009. abandoned abandonment suriaoe site rcmediated surface site remediated suriacx V le remediated surface site re medialed Page 13 of 14 SPAR Response with Legacy Wells LrsLxlsx Page 14 of 14 0 vrcTon`ce o BLM 2813 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator i RP 1 Land Mgr Priority CSP Status File #fFlaxid Releases SPAR Workgroup Notes Status Status Add to Site list. Need HRR, PA. SI with workplan and sampling. Chilling mud assessment. Surface Cleanup. Two large breaches on the south side of the berm allow water out of the reserve pit. Plugged properly plugged and surface site Drew Point #1 USGS 1 BLM None None None Yes by BLM in 2410. abandoned remedialed On Site list Need HRR, PA, 51 with workplan and sampling. [frilling mud assessment. Surface Cleanup. In 1976 the reserve pit berm failed and dolling muds/cutlings were released onlo the Poe of Teshekpuk Lake. Plugged by BLM in 2008. Solid waste from camp aril drilling operations buried on northern portion of pad. Erosion has exposed solid properly plugged and surface site East Teshek uk #1 US Navy 1 BLM None Active - waits 3Q0.38.11012652 Ycs, see file waste. abandoned remediated Threatened by erosion. properly plugged and surface site J. W. Dalton $P USGS f BLM None None None No Plu ed b BLM in 20fl5. abandoned rernediated properly plugged and surface site South Barrow #8 USAF 1 BLM None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface sile South Bartow 911 US Na INorih Slope Bono None None None Unknown Need HRR, PA, abandoned remedialed properly plugged and surface site South Barrow 013 US Na lNerlh Slope Boro None None None Unknown Need HHR, PA, abandoned remedialed properly plugged and surface site South Barrow #15 US Na !North Sloe Boro None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface site South Barrow #19 US Na 1Nrarlh Sloe Baro None Nana None Unknown Need HRR. PA, abandoned remediated Properly plugged and surface site South Barrow 1x20 US Na Worth Slope Bora None None None Unknown Need HRR, PA, abandoned remedialed Need HRR, PA, dolling mud assessment, containment assessment, possible releases. Breaches allow wafer to flow into and aul of property plugged and surface site Watakpa #2 USGSI BLM None None lNone lyes I reserve and flare pits. labandoned irernediated Page 14 of 14 0 1®F "k .„ United States Department of the Interior ky :;. BUREAU OF LAND MANAGEMENT Alaska State Office 222 West Seventh Avenue,#13 Anchorage,Alaska 99513-7504 http://www.blm.gov In Reply Refer To: AUG 2 8 2013 1794(9300) Mr. Larry Hartig Commissioner Alaska Department of Environmental Conservation P.O. Box 111800 Juneau, Alaska 99811-1800 Dear Commissioner Hartig: Thank you for your comments dated July 11,2013,regarding the Bureau of Land Management's (BLM)National Petroleum Reserve in Alaska(NPR-A)2013 Legacy Wells Strategic Plan. We appreciate the work you and your staff have put into reviewing our Plan and providing us with your feedback. The BLM is eager to continue working with the Alaska Department of Environmental Conservation as we continue with clean-up and plugging efforts at legacy well sites throughout the NPR-A. The 2013 Strategic Plan is based on data compiled through multiple years of site visits and monitoring activities. It outlines priority locations and actions that the AI.M will take in the near-term to plug and clean up Iegacy wells in the NPR-A,but does not go into site-specific work plans. The BLM's May 2013 Legacy Well Summary Report includes a site by site description and risk ranking for each well,based on information collected during site inspections and application of a risk assessment methodology. That methodology is described in the report. The BLM considers the Legacy Well Summary Report a thorough review of the status of each site and I do not believe that an additional programmatic review of each site is required at this time. As part of the BLM's surface risk assessment process,site inspection reports documented any indication of contaminant releases or visible contaminants. The BLM will involve your agency in the plan to evaluate and,if appropriate, remediate any sites where there is a known or potential release of contaminants into the environment, including at legacy well sites. I appreciate the discussions we have had to date and look forward to continuing our dialogue regarding ADEC's concern that certain wells appeared to have had confirmed releases. (-e-'' _'t1 �. 2 My staff is available to discuss any site specific concerns or information that ADEC may have. I look forward to continued cooperative and productive coordination between our agencies. Sincerely, Is/Ted Murphy Bud C. Cribley State Director ADEC INFORMATION REQUEST Concerning a contaminated site(s) Re: Legacy Well Sites in and near the National Petroleum Reserve, Alaska (NPRA) Please precede each answer with the number of the question to which it corresponds. Please direct any questions concerning this information request to Fred Vreeman, Contaminated Sites Program, 610 University Avenue, Fairbanks, AK 99709; Phone: 907-451-2181. Thank you for your cooperation. 1. Provide name and company affiliation of the person answering the questionnaire. 2. Provide copies of all studies, reports, and supporting information (including preaquisition assessments and work done on behalf of other parties) which you have knowledge of which address past and/or present environmental conditions at the site. Identify the name, title, address, and phone number of the party(s) who are responsible for preparing the studies or information. Information which has been previously submitted to ADEC need not be submitted again (unless specifically requested in a subsequent communication) if you can provide the name of the office (and name and title of the DEC officer if known) to whom the report was previously provided. 3. Provide a description of any ongoing or planned investigations or cleanup work at the site. Identify the names, titles and phone numbers of the individuals responsible for preparing the studies or information. 4. Provide a description of known releases at the site (date of occurrence, quantity released, type of substance released, etc.) and a description of corrective measures that were taken. Provide information on any suspected releases which may have or are occurring. 5. Describe the nature of past and present operations at the site. In particular, any actions that may have caused the release or threat of release at the site. Describe the physical characteristics of the site including major structures, water wells, fuel or waste storage systems, drainage or septic systems, etc. 6. Provide a list of any permits issued by the Department which relate to activities at the site and a list of RCRA identification numbers (U.S. EPA identification numbers)which may be held. 7. Identify persons to whom you leased all or a portion of the property and describe the nature of their operations. 8. Identify the person(s) who used the site for disposal of substances deposited there, if any. 9. Provide copies of manifests for any hazardous waste and/or petroleum contaminated materials taken to or from the site. 10. Provide a list of persons and their phone numbers and addresses of persons who have knowledge about the use of hazardous substances at the site. 11. Provide information regarding the existence of insurance coverage for damages resulting from releases of hazardous substances and copies of all such insurance policies, both currently in effect and in effect during the periods of activity in question. 12. Describe the acts or omissions of any person, other than your employees, agents, or those persons with whom you had a contractual relationship, that may have caused the release or threat of release of hazardous substances at the site. a. In addition, describe all precautions that you took against foreseeable acts or omissions of any such third parties. 13. Describe the care you exercised with respect to the hazardous substances found at the site. 14. Describe the physical characteristics of the site including structures, wells, drainage systems, etc. 1 tca \ �, oF17.4's , THE E STA E l�'!�T2�:r'°'�l� E C f 1��"�.v: `cL2_ eL1 ai \\\�//,, a -- - Ofl li �►. �t.l -Ort� ��ciLB ; } _ Division of Spill Prevention and Response GOVERNOR SEAN P A R N E L L Contaminated Sites Program ® ' �. 610 University Ave. ALA,43� Fairbanks,Alaska 99709-3643 Main:907.451.2181 Fax:907.451.2155 July 11, 2013 Wayne Svejnoha 2 2074 Supervisory Minerals & Energy Specialist stomp� M 1 222 W 7th Avenue, #13 Anchorage,Alaska 99513 Re: BLM Legacy Wells Dispute Dear Mr. Svejnoha: The Alaska Department of Environmental Conservation (ADEC) —Contaminated Sites has reviewed the National Petroleum Reserve in Alaska: 2013 Legacy Wells Summary Report dated February 2013, containing updated information on the status of the 136 Legacy Wells located in the National Petroleum Reserve— Alaska (NPR-A), and the draft National Petroleum Reserve in Alaska: 2013 Legacy Wells Strategic Plan dated May 2013. ADEC has also reviewed the response by the Alaska Oil and Gas Conservation Commission (AOGC). We concur with the response by AOGC and have no further comment regarding the priorities. We do have comments about the investigation and cleanup plans presented in the report. With this letter we are outlining regulatory requirements related to the environmental work that is proposed and required as part of these cleanups. ADEC is concerned that the 2013 Legacy Wells Strategic Plan prepared by the BLM does not include either assessment or the contingency for assessment of known,likely, or unknown but possible contaminant releases. In addition,BLM plans for surface cleanup of these wells should be made clear in the plan. At least one of these legacy wells has extensive PCB contamination and has resulted in a multi-year cleanup totaling tens of millions of dollars. At others, solid waste disposal practices have resulted in releases to the environment with estimated cleanup costs in the hundreds of millions. Known releases documented in the records we reviewed include crude oil,gasses,refined oil and fuel, drilling fluids that include various organics,metals,and other chemicals, and unknown contaminants from drums and other containers observed to be damaged and abandoned at the various well sites. There are 13 legacy well sites with known releases currently on the DEC contaminated sites list. Many of these are in the process of being addressed, cleaned up, and closed. From our limited records review there are 15 additional legacy well sites with confirmed releases. These should be prioritized for initial records reviews and then added to the BLM contaminated sites list under our cooperative agreement. Suspected releases include fuel releases from operations, storage, and fuel spills at the sites,impacts to various surface water bodies from spilled fluids during drilling and breaches of containment at reserve and flare pits, continued surface runoff from drilling fluids uncontained at several sites, and down-hole substances that were ejected from the holes over time or during blowouts or drilling operations. , Wayne Svejnoha 2 July 11, 2013 The BLM plan to address these known, suspected, and unknown releases at legacy well sites is notably absent from the documents presented to date. The three primary regulatory agencies that need to be involved in the plan are ADEC —Contaminated Sites,Alaska Oil& Gas Conservation Commission, and ADEC —EH/Solid Waste. Other agencies will need to be consulted as well. Below we provide recommendations for a coordinated plan using the Uniform Federal Policy for Quality Assurance Project Plans (UFP-QAPP) that will involve all of the regulatory agencies in one coordinated manner. This will allow BLM to address these sites in a consistent and coordinated project which fulfills all of the regulatory requirements so that the sites do not need to be re-visited in the future when they are closed after this project. Attached are our comments on each specific well. The acronyms used on the list include terms that are typically used in a CERCLA type investigation however they are also suitable for investigations conducted under the State of Alaska cleanup rules. These include the following; Historical Records Review (HRR) This is recommended for almost all of the well sites. Much of the information required for these reviews is already contained in various reports and appendices or in BLM files. The Historical Records Review should document the type of releases that might have occurred from drilling operations as well as historical use of the site, and should capture all available information on the drilling fluids used and any product produced or released. Preliminary Assessment (PA) This is recommended for almost all of the well sites. A Preliminary Assessment is a limited scope investigation that provides an assessment of information about a site and its surrounding area to distinguish between sites that pose little or no threat to human health or the environment and sites that require further investigation. The PA is a CERCLA defined document and typically does not require sampling. Site Inspection (SI) If the PA recommends further investigation, then an SI is necessary. The SI is a CERCLA defined document, and it is analogous to an initial report of contamination under state cleanup rules. On some legacy well drillings sites it is evident now that an SI is required just from a review of the reports. An SI investigation typically includes the collection of samples to determine what contaminants are present at the site and whether they are being released into the environment. An approved site specific workplan is required under both CERCLA and 18 AAC 75 prior to SI sampling. The SI typically is not intended to develop a full site characterization, but is limited to determining the presence or absence of a release. If contamination is found after completion of the HRR,PA, and SI then a RI/FS under CERCLA, or a Site Characterization Report and cleanup plan under 18 AAC 75 is required. DEC recommends that BLM incorporate into the strategic plan the processes outlined in this letter. A team of agencies composed of AOGC,DEC-CS, EPA as required,and DEC-EH should address regulatory and technical requirements for these well closures. By cooperating and working together with the regulatory agencies BLM will save time and expense,and regulatory uncertainties will be avoided. The strategic plan should reference a project to prepare a generic workplan. DEC suggests that BLM utilize the generic UFP-QAPP workplan format for the required environmental work. If properly prepared,the workplan could encompass most of the investigations and cleanups required at these sites over multiple years. At other multi-site projects we have found this to be an effective way to reduce uncertainties and risk in these types of investigations. A very small site specific FSP could then be developed as BLM approaches each drilling site. Regulatory decisions made during workplan development would provide more certainty in the planning process for cleanups. (:•\CP AA AoP.,npS\flQT\MN'\Projects\Leeacv Wells\7 11 13 Letter to BLM on Legacy Wells.docx Wayne Svejnoha 3 July 11, 2013 Please review the attached list of specific sites. If you have any questions, please do not hesitate to call me at 907-451-2181 or by email at fred.vreeman @alaska.gov. I look forward to working with you as the Federal Government fulfills its requirement to clean up these well drilling sites in Alaska. Sincerely, (r " Fred Vreeman Environmental Program Manager Enclosure: SPAR Response with Legacy Wells cc: Bud Cribley, State Director, Bureau of Land Management Steven Cohn, Deputy State Director for Resources, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer,Bureau of Land Management Cathy Foerster, Commissioner, Alaska Oil and Gas Conservation Commission Larry Hartig, Commissioner,Alaska Department of Environmental Conservation Kristen Ryan, Director,ADEC Division of Spill Prevention and Response Steve Bainbridge, Program Manager,ADEC Contaminated Sites Program Jennifer Roberts, Program Manager,ADEC Contaminated Sites Program G:\SPAR\CS\Federal Facilities\Civilian Federal Agencies\DOI\BLM\Projects\Legacy Wells\7 11 13 Letter to BLM on Legacy Wells.docx V 2 U ._ m 0 O t mN ° � r . _ I U) no U c N :d Y O) �O W @ co YC a O CO CO m CO �6 �O CO CO (O C (o 7 O) 07 (6 07 N O7 f0 O7 .N 0) @ co @ (O (6 CO (O (O N O)�`,,, ° C .yo.. 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K o @ Q la 3 d O. c C C C C Cl) C C C CO Z < 0 0 0 0 0 0 0 Z Y N ix M r N 4. ..7 0 O O O O O O O O O Mo.. z z z z z z z z z z 1.. o o o o 6 rn DO CO CO CO CO a) a) a) a) N a a a a a 10 0 0 0 0 0 J d _1 r r C C C ct � m -I _i Z z z z z _1 J t`0 (n 03 co u_ CO 03 CO CO CO U) O 0 2 Ur Q 2 Z Z Z Z 0 0. k min O) 0 a 4k 0 C O o 0 0 O O O 0 #CV (0 O N CO 0 R W A N (0 ay Z a) O CO CO CO CO CO m 0. 3 L L L L L L W (0 0 0 0 0 O 0 CO 0 W -i CO CO cn cn u) cn . _ • I— BLM/ASRC Legacy Well Review. Cane Hackett #1 (PTD 100 -101) Surface status: Wellhead still present with cellar and pilings in area. Photos available. (RBDMS status is SUSPENDED.) Downhole Status: Appears to be P & A `d properly downhole with cement to surface. Geodata: Sidewall core description, Sample description for well. Lithology log, 011 data on CD. (RES, DENS) " oran #1( ' 1 100 -106) Surface status: Unknown... No photo of area. Well file indicates wellhead in place. (RBDMS status isP &A) Downhole status: well appears to be properly P & A , cement plug to surface. Geodata: Core chips and mud log. No OH log data. Grandstand Test #1(PTD 100 -053) SCANNED JAN 312013 Surface status: unkown . no photo. (RBMDS status is P & A ) Downhole status: Unknown. Drilled to 3939 ft. appears to have two downhole cement plugs of unknown depth. No drilling reports except for summary page. Geodata: Core data, OH logs on CD (RES , DENS) , 011 DST's were done in 5 intervals (weak gas shows) Gubik #1 (PTD 100 -221) Surface status: unknown... no photos of location. (RBDMS status is P & A ) Downhole status: No wellbore diagram or drilling reports in file. Drilled to TD of 6000' and . 11 3 /4" casing set and cemented at 890'. Multiple cement plugs pumped (volume unknown) last plug at 800ft tested to 800 psi ok. Geodata: SP , RES logs on CD. Core and ditch description in well file. 8 OH DST's were done. Good Gas shows at 3500ft Gubik #2 (PTD 100 -222) Surface status: unknown. There is one photo of derrick available. Not sure if wellhead is present. RBDMS status is P &A Downhole status: unknown. 11 Casing set and cemented at 800ft Well blowout from zone at 1800 ft. during plugging operations. Drilled to 4620 ft. cement plugs set at 2300 -2200 ft. no record of plugging well after blowout. Sanded off. Geodata: DENS and RES on CD. Core and ditch description in well file. • • Colombie, Jody J (DOA) From: Sent: To: Subject: Attachments AOGCC Well Status.xlsx (li KB... Aubert, Winton G (DOA) Wednesday, October 07, 2009 3:39 PM Colombie, Jody J (DOA) FW: well status AOGCC Well Status.xlsx ~ `~ ~ o~ Please file BLM's response (with attachment) to our 2nd request. Thanks, w. -----Original Message----- From: Schwartz, Guy L (DOA) Sent: Wednesday, October 07, 2009 3:35 PM To: Aubert, Winton G (DOA) Subject: FW: well status Winton, Here is the list.... `~~v Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) -----Original Message----- From: Greg_Noble@ak.blm.gov [mailto:Greg Noble@ak.blm.gov] Sent: Monday, October 05, 2009 12:17 PM To: Schwartz, Guy L (DOA) Subject: well status Guy, As we discussed I am submitting this list in response to the AOGCC letter of 10/01/09 signed by Cathy Foerster. Please let Winton, Cathy, Dan, and whomever else that needs to be "in-the-loop" that the letter has been responded to. (See attached file: AOGCC We11 Status.xlsx) (907) 267-1429 w (907) 240-5240 c 1 • AOGCC Well Status AOGCC Confirm AOGCC Well Status Status or Other status pe Halkett 1~ Susp P+A I Uv-1 b ~ ` Umiat 5 ~ SI P+A by COE 2002 Atigaru Pt 1 OBSW P+A by BLM 2009 Awuna 1 OBSW Confirmed Drew Pt 1 OBSW Confirmed E Simpson 1 OBSW Confirmed Ikpikpuk 1 OBSW Confirmed Loluktak 1 OBSW Confirmed Kugrua 1 OBSW Confirmed Kuyanak 1 OBSW Confirmed Lisburne 1 OBSW Confirmed N Inigok 1 OBSW Confirmed N Kalikpik 1 OBSW Confirmed Peard 1 OBSW Confirmed S Harrison Bay 1 OBSW Confirmed S Meade 1 OBSW Confirmed Seabee 1 OBSW Confirmed Tulageak 1 OBSW Confirmed Tunalik 1 OBSW Confirmed W Dease 1 OBSW Confirmed W Fish Creek 1 OBSW Confirmed Umiat 3 Splug Confirmed Umiat 4 Splug Confirmed Umiat 10 Splug Confirmed Umiat 8 Splug Confirmed Wainwright 1 Susp Confirmed Wainwright 3 Susp Confirmed Wainwright 4 Susp Confirmed Wainwright 5 Susp Confirmed Wainwright 6 Susp Confirmed Wainwright 8 Susp Confirmed • • SARAH PALIN, GOVERNOR ~~~~ ~®v ~~ 333 W. 7th AVENUE, SUITE 100 ®"~~~Q~~®~ 1.®~-7-7I®~ ANCHORAGE, ALASKA 99501-3539 Zi -7-7 PHONE (907) 279-1433 January 29, 2009 FAx (so7) 27s-7saz CERTIFIED MAIL RETURN RECEIPT REQUESTED 7004 1160 00013621 1847 Greg Noble Section Chief -Energy Section Bureau of Land Management 4700 BLM Road Anchorage, Alaska 99507 Re: Request for Verification of Suspended, Shut-In and Observation Well Information Dear Mr. Noble: I~p~~01 This letter supersedes our correspondence of January 28, 2009. Enclosed are lists of suspended, long term shut-in and observation wells operated by US Dept of Interior, your predecessor agency and Husky Oil NPR Operations Inc. For each list, please verify the information for each well, and provide any corrections by April 1, 2009. Location inspections required under 20 AAC 25.110 should be coordinated with Jim Regg at 907-793-1236 or jim.regg@alaska.gov. If you have any questions regarding this notice, please contact Tom Maunder at 907-793- 1250 or tom.maunder@alaska.gov. Sincerely, Cathy . Foerster Commissioner Enclosures Q~~~~~~~~~a~~ us ~nd~d, .hut n and bse~ati®n Wells ~'~~lre° Current Date of Iecrrrdit ~ivl l~tuuber '4~dell Name Status Status Surface Location .................................................... Lease(s)................................... °~~~~~~?~ ~®RY 207-065-0 50-301-20003-00-00 WAINWRIGHT 1 SUSP 7/5/2007 900 FNL 2278 FEL Sec 24 T 15 N R 32 W UM t1f01 i9t T' 100-213-0 50-287-10005-00-00 UMIAT TEST 05 SI 10/27!1971 0 FL 0 FL Sec 0 T R M • ~'lrsa~° ~l~av, .~rrszeanry 7~~, 2009 ~~~~~~t~l~ Suspended, Shut In and. ®bservatl®n Wells ~I ~ N~~lY ~~®~/r~ Current. Date of f~ermit ~A~l Number iWell hiame Status Status Surface Location .................................................... Lease(s)................................... °L~~~ ®~~ ~~~Y 100-101-0 50-103-20004-00-00 CAPE HALKETT 1 SUSP 5/22/1975 2000 FSL 1400 FWL Sec 5 T 16 N R 2 W UM 1 dZ~rrsday, J~ere~draPy 29, 200 Q~~g~erator~ Suspended, ~9QIS~1' UlL 1~(I'IZ OPE12A'TIONS INC l-'ieC,! t'er,nit AI'1 Number Well Name Shut In and Current Date of Status Status Observation Wells Surface Location ..................................... ............... Lease(s)................................... "EXPLORATORY 100 104-0 50-103-20008-00-00 ATIGARU PT 1 OBSW 7/25/2008 1422 FNL 1926 FEL Sec 19 T 14 N R 2 E UM 100-151-0 50-155-20001-00-00 AWUNA 1 OBSW 7/25/2008 2519 FSL 1936 FEL Sec 30 T 3 S R 25 W UM 100-198-0 50-279-20002-00-00 DREW PT 1 OBSW 7/25/2008 890 FSL 1940 FEL Sec 26 T 18 N R 8 W UM 100-201-0 50-279-20005-00-00 E SIMPSON TEST WELL 1 OBSW 7/25/2008 1031 FNL 1170 FWL Sec 18 T 18 N R 10 W UM 100-200-0 50-279-20004-00-00 IKPIKPUK 1 OBSW 7/25/2008 1306 FNL 785 FEL Sec 25 T 13 N R 10 W UM 100-125-0 50 119-20001-00-00 KOLUKTAK 1 OBSW 7/25/2008 65 FSL 1555 FWL Sec 27 T 5 N R 11 W UM 100-155-0 50-163-20002-00-00 KUGRUA 1 OBSW 7/25/2008 669 FNL 1300 FWL Sec 8 T 14 N R 26 W UM 100-156-0 50-163-20003-00-00 KUYANAK 1 OBSW 7/25/2008 1282 FNL 1031 FWL Sec 10 T 18 N R 16 W UM 100-149-0 50-137-20003-00-00 LISBURNE 1 OBSW 7/25/2008 792 FSL 2411 FEL Sec 17 T 11 S R 16 W UM 100-108-0 50-103-20017-00-00 N INIGOK 1 OBSW 7/25/2008 182 FSL 382 FEL Sec 36 T 11 N R 4 W UM 100-107-0 50-103-20011-00-00 N KALIKPIK 1 OBSW 7/25/2008 2766 FNL 2593 FWL Sec 3 T 13 N R 2 W UM 100-226-0 50-301-20002-00-00 PEARD TEST WELL 1 OBSW 7/25/2008 1106 FNL 1836 FWL Sec 25 T 16 N R 28 W UM 100-103-0 50-103-20007-00-00 S HARRISON BAY 1 OBSW 7/25/2008 1968 FNL 1981 FWL Sec 6 T 12 N R 2 E UM 100-154-0 50-163-20001-00-00 S MEADE 1 OBSW 7/25/2008 997 FNL 2937 FEL Sec 31 T 15 N R 19 W UM 100-223-0 50-287-20007-00-00 SEABEE 1 OBSW 7/25/2008 1099 FSL 1339 FEL Sec 5 T 1 S R 1 W UM 100-047-0 50-023-20018-00-00 TULAGEAK 1 OBSW 7/25/2008 3338 FSL 1140 FWL Sec 7 T 21 N R 14 W UM 100-225-0 50-301-20001-00-00 TUNALIK 1 OBSW 7/25/2008 2403 FSL 1488 FEL Sec 20 T 10 N R 36 W UM 100-043-0 50-023-20014-00-00 W DEASE 1 OBSW 7/25/2008 2464 FNL 2295 FEL Sec 21 T 21 N R 14 W UM 100-105-0 50-103-20009-00-00 W FISH CK 1 OBSW 7/25/2008 934 FNL 2033 FEL Sec 11 T 11 N R 1 W UM ~1 ~J III![Y:1'[/[l~.', Junitary 29, 211119 • • . = SAR,4H PALlN, GOVERNOR ~,~,~,-~] ~ ~~~' ~~ 333 W. 7th AVENUE, SUITE 100 '~~~,~7~~J~`~-y~-~~~,~7 ~~~~~~`~'~~~T ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279.1433 January 28, 2009 FAx (907) 276-7542 CEI2`I'11;+$ED I'vIAI1, ~E'1'IJRN >I~CEIFT l;~E~IJES'l'EB 7005 1820 0001 2499 6002 Greg Noble Section Chief -Energy Section Bureau of Land Management 4700 BLM Road Anchorage, Alaska 99507 ~~~;~~ J~C~ ~%' LOS Re: Notice of Revised Suspended Wells Regulations and Request for Verification of Suspended and Shut-In Well Information Dear Mr. Noble: Enclosed are the Alaska Oil and Gas Conservation Commissio~l's revised regulations regarding suspended wells (i. e., 20 AAC 25.110). Also enclosed are lists of suspended wells operated by US Dept of Interior and your predecessor agency. For each list, please verify the information for each well, and provide any corrections by April 1, 2009. Location inspections required under 20 AAC 25.110 should be coordinated with .iim Regg at 907-?93-1236 or jim.regg@alaska.gov. If you have any questions regarding this notice, please contact Tom Maunder at 907-793- 1250 or tom.maunder@alaska.gov. Sincerely, Enclosures Cathy P. Foerster Commissioner ~ry ~ r, ~y e` n '~ III "~ ;~ ~`~~1`Y~Y k-PS7rI ~urre~at date off }Desaeaat E~~DI hluaaa~er Well hlaatae Stataas Status Surface ~ocatdoaa .................................................... L,ca!sc(s)................................... '~1f~~~~~~"~l~N 100-101-0 50-103-20004-00-00 CAPE HALKETT 1 SUSP 5/22/1975 2000 FSL 1400 FlNL Sec 5 T 16 P~ R 2 V11 UfVI FED-IVPR-A • ~`~Q~ib'~re.a•~(say, .drweurrr~, 14, .2(DOA ~-! T ~~9R:'R9~Qb;- p.f , Sti ~ Tf~lF? ?'`=~r~-~~nt ~~t~ o~ ~"~rrria£ e1~"R 1?i;~ara~~ee- ~vmRl I'~a~ms ~t~t^n~ ~t~s~3ta~ ~~~rrs~~ ~.,~csRi~an .................................................... n.,ea9~e(5}................................... 207-065-0 50-301-20003-00-00 WAINWRIGHT 1 SUSP 7/5/2007 900 FNL 2278 FEL Sec 24 T 15 N R 32 W UM FEE-BLM J t~~crf3fe,S(iay, .~ree4uQi1~ 1!+, 1.t1Q° e . WEll HISTORY U. S. N. CAPE HAlKETT 16N-2W-1 NAVAL PETROLEUM RESERVE NO. 4J ALASKA \OO~10 \ I I:;· ;.::7 ,;;,., PREPARED FOR: ~-rc.¡-\. \$ '- ~ DEPARTMENT OF THE NAVY NAVAL PETROLEUM AND OIL SHALE RESERVES PREPARED BY: i S. O. PATTERSON - PROJECT MANAGER J. S. LEACH J. L. RESER I JUNE 1975 TETRA TECHJ INC. 4544 POST OAK PLACE HOUSTONJ TEXAS 77027 f> r I [ l I e e TC-475 WELL HISTOR Y U.S.N., CAPE HALKETT 16N-2W-l NAVAL PETROLEUM RESERVE NO.4, ALASKA Prepared by: [ J. S. Leach J. L. Reser Project Manager: S. O. Patterson Î Prepared for: DEPARTMENT OF THE NAVY NAVAL PETROLEUM AND OIL SHALE RESERVES Contract NOd-9925 J.O. 501 June 1975 , . I ~ Tetra Te.£h, Inc. Exploration & Geotechnology Division 4544 Post Oa.k Place, Suite 266 Houston, Texas 77027 e r~~ í I í I TABLE OF CONTENTS LIST OF ILLUSTRATIONS 1. 0 INTRODUCTION AND SCOPE 2.0 WELL DATA 2. 1 Data Sum.mary 2.2 Welbore Completion Profile 2. 3 Location Map [ 3. 0 DRILLING JOURNAL 3. 1 Daily Operations 3.2 Daily Mud Record 3. 3 Bit Record 3.4 Deviation Surveys r 4.0 PERMITS AND REPORTS e Page ii 1 2 2 4 5 6 6 18 22 24 4. 1 Department of Interior Permit Application 4.2 State of Alaska Perm.it Application 4.3 Department of Interior Completion Report 4.4 State of Alaska Completion Report 25 25 26 27 28 ì 5.0 GEOLOGICAL CONSIDERATIONS 5. 1 Sidewall Core Descriptions 16N2W-1 5.2 Sample Descriptions .po 29 29 41 L~ [I [~1 [J 11 L,· i I 1- e LIST OF ILLUSTRATIONS Welbore Completion Profile Location Map Penetration Curve Daily Temperature (Ambient) Plot Location Layout Time Distribution Chart .;., .,r. ii e Page 4 Page 5 In Pocket II II II II II II 1.0 I r I r r Î I [ J e e INTRODUCTION AND SCOPE This report describes work done in drilling of the 16N2W -1 well near Cape Halkett on the Arctic coastal plain in the northeast portion of Naval Petroleum Reserve No.4. This well was drilled under the supervision of the Officer in Charge, Naval Petroleum Reserve No.4, by Parker Drilling Company for the Director, Naval Petroleum and Oil Shale Reserves. The purpose of this well was to test for the presence of oil or gas productive formations within a truncated half domal structure near the Barrow Arch. Gas productive sands were found near the base of the Lower Cretaceous. These intervals were not tested during drilling but plans have been made to test this interval at a later date. Geological Wellsite Supervision by Maurice Fishburn (U. S. N. ) S. R. Burden (Consultant) Marvin Mangus (Consultant) Engineering & Drilling Supervision by Weldon Ingram (PARCO) Paul Newton (PARCO) Jack S. Leach (Tetra Tech, Inc.) James L. Reser (Tetra Tech, Inc.) "'" -1- f: e e 2.0 WELL DATA I=¡ r I 2. 1 Data Summary I~ I I WELL: LEASE: LOCA TION ELEVATION: OPERA TOR: OPERA TIONS SUMMAR Y Cape Halkett 16N -2W-1 "C. S. N., NPR-4 14001 FWL, 20001 FSL, Section 5, T16N, R2W, Umiat B&M Alaska °7 "C. S. N., Office of Naval Petroleum Reserves, Washington, D. C. DRILLING PARCO, Inc., Anchorage, Alaska CONTRACTOR: [' [ M SUSPENDED: SPUD: 24 March, 1975 23 May, 1975 RIG RELEASED: 1 June, 1975 (to standby status) TOTAL DEPTH: 9900 feet HOLE SIZE: CASING: MUD: CORING: DRILL STEM TESTS: LOGGING: ., 36'1 to 40' 26~! to 500' 18111 to 2413' 12*" to 7861' si" to 9900 I Conductor - 30" @ 40' Surface- 20" @ 492' Permafrost- 16" @ 2410' Intermediate- 9-5/8" @ 7812' Fresh water gel to 2413' inhibited lignosulfonate to 9900' None ~one 40'-5001; BHC Sonic 300'-2413'; DIL, Caliper 24131 -78611; DIL,BHC Sonic CNL-FDC-GR, HRD, SWS 7861'-9900'; DIL,BHC Sonic, CNL-FDC-GR, HRD, SWS -2- 11 rl ¡l ¡l e SAMPLES: MUD LOGGING: DRILL RIG: \1 . I I.. B. o. P.E. : II DRILL PIPE: I~ DRILL COLLARS: PLUGS: I ROTATING HOURS: I rJ r tl r ¡ 1 OPERA TIONS: oF 1 I OPERATION SUMMARfÞ( Cont'd). 10 Ft. intervals, 2 unwashed & 3 washed/dried Borst & Giddens, Ventura, California Parker Drilling Co., Tulsa, Okla., Rig #128 Drawworks - TBA 2000, Single Drum Mast - L. C. Moore, 136', 1,025,000 .lb. GNC Power - 4, CAT, D343B, Turbo charged diesels Pumps- 3, HOWCO, HT-400 Triplex, S. A. (1) Shaffer 20", 2000 PSI W. P., Spherical, Annular (1) Shaffer 13-5/8", 5000 PSI W. P., Spherical, Annular . (2) Shaffer 13-5/811, 5000 PSI W. P., Blind Ram Gate s. (1) Shaffer 13 - 5 / 8", 5000 PSI W. P., Pipe Ram Gate. (1) SW ACO, Automatic Choice Asserrtbly (4) Shaffer, 311, 5000 PSI W. P., Hydraulic Valves (1) SW ACO, High Pres sure Degasser 4i", Grade E, 16. 6 lb., Plastic Lined with XH Tool Joints. 811, 2-13/16"1. D. with H-90 Tool Joints 6", 2-13/16" 1. D. with H-90 Tool Joints No. 1-8800'-85001, 125 SKS. Class G. No. 2-8200'-7900', 125 SKS. Class G. No. 3-78301-7630', 75 SKS. Class G. No. 4-1425' -Surf. 550 SKS. Arcticset & C1as s G. ( C. I. B. P. Set @ 1425'); Drilling-50S. 75 Reaming- 37. 5 Started Location Preparations-2, Jan., 1975 (57 days) Started Rig Up -27, Feb., 1975 (25 days) Spud -24, Mar., 1975 (61 days) Completed Plugging -23, May, 1975 -3- 2.2 16N24a WELBORE COMPLETIOe PROFILE 7630' 7812' ~:.:>..: " .. . .... ./ 77:3;: ~,;~.n --J 7900' ~ \>:.~'. 8200' ~~~ , ~ d d Ô DEPTHS K. B. ( FE ET) 40' 492' 500' 1425' [~t 2410'-- 2413' Î I -1 1', L L r 8500' 8800' T 0.9900' [':':: .. ",' ..... ,', ',' . ~.'. .: ::--. -.- - ..... ': :'. ~.. . '.. . .' . - . - '.' . ., . ,. . . :.' : ~ "0 .' ..:....... '. ~: .. .' .., I:::. .0:'.: . r ~ o· :.: ":'. .:.. .. ' . .... . '. . .. ~ r ',::'>;)i ¡ ~! I·~·~ '.. ~.>: '''-.. -.~ .'. ., ,,: .~ ::« .: .: ". ",,, (.:~ . ~ 30" CONDUCTOR PIPE - 3 6" HOLE 20" K -55 CASING 12 JTS. 133 LB/FT. 26" HOLE - CEME N T PWG TO SURFACE 16" T 8 C K-55 CASING 57 JTS. 84 La/FT. 181¡2 HOLE 5 9rS" N-SO CASING HYCRIL SUPER EU. 183 JTS. 47 LB/FT. ~ t \. 121/4" HOLE CEMENT PLUG CEMENT PLUG 81/2" HOLE CE MENT PLUG ,.. .....' It; , . J -4- f~; [1 ["~l I~¡ Ii II Il tj.: II ¡~ ¡ f_' t' " " l ;0 '\ ¡ 10 \)" I 16 I 15 I 14 C). 13 -1--/3! I . ~ 300J 5 01 I I 2W e 3 8 /8 21 23 i 28 I 27 \ \ 32 33 ,\4 -g:::RHall~ett ~: 16N2W-1 T.D 9900' ('75) . - ---& . ':::L/ ~t'~~ ù: 8 '~ \ 9 ; ~E . f)J26 I I \ \) 35 . ~ i/ 36/ I V' HARRISON BAY / 2 I / / rV 11/ .1 10 16N -2W-1 LOCATION MAP SCALE: I; 63,360' \ 16 , D 15 '--' y\ ~ ."., , 2.3 WELL LOCATION MAP -5- ~ f"¡ rl U [j rJ e e 3.0 DRILLING JOURNAL 3. 1 Daily Operations 1-2-75 through 1-11-75 1-12-75 through 1-17-75 1-18-75 1-19-75 1-20-75 i 1-21-75 -1-22 - 7 5 1-23-75 l. t." l.~ ¡ " I" 1-24-75 1-25-75 1-26-75 1-27-75 Began operations (Deadhorse) Working on generator and generator house for runway lights. Clean and equip water tank for hauling water. First work at POW -1- Rig lights & heat in Navy shop building. Waiting on G. S. 1. cats to build Here strip at location· {3 PARCO men in camp @ POW - l~ (Cats arrived at location 1-17-75) . Location and strip surveyed. Started construction on Herc strip. Working on generators & buildings. (2 PARCO men in camp) . Finished Herc strip (6400' x 200'). Working on generator s for landing strip lights. (2 PARCO men in camp). Working on generators,' unload landing strip lights, r~pair fuel lives to shop. AIA representative inspected landing strip & facilities, checked ice thickness (frozen to bottom of lake - 30" - 36"). (2 PARCO men in camp) . Work on generators for landing strip lights, unloading landing strip lights. (Herc down for maintenance) {2PARCO men in camp. Rig up generators §t fuel tank and lines. Z Here loads w/2 front end loaders, 2 Wannigans and I drag. (2PARCO men in camp) Work on generator & runway lights. 5 Herc loads arrived Hal!. 6 Frontier hands Hal I. 2 PARCO hands Hal I. Work on generator for runway lights. 6 Here loads. 6 Frontier hands, 2 PARCO hands @ Hal!. Change out generator and motor for runway lights. 6 Herc loads, 1 Rolligon load 6 Frontier, 2 PARCO hands in camp. ., String runway lights. 6 Frontier, 2 PARCO hands in camp. Work on runway lights. 3 Here loads 6 Frontier, 2 PARCO in camp. -6 - f' [I r" ~~I 1-28-75 1-29-75 1'1 1-30-75 [J 1-31-75 02-1-75 02-2-75 02 -3 - 7 5 tl 02 -4 - 75 through 02-5-75 i 02-6-75 02-7-75 02-8-75 I r~' 02-9-75 2-10-75 ¡ 2-11-75 I""" l" 2-12-75 I e e Clear air strip, set up camp, start water search. 3 Here loads. 9 Frontier, 3 Boatel, 2 PARCO in camp. Clear air strip, set up camp, cant. water search. 3 Here loads. Total: 18 men in camp. Set fuel bladder tank, cant. water search. 5 Here loads. 32 men in camp. Work on runway lights, cont. water search. No Heres. Elec. work on Frontier camp, cant. water search. No Heres. Work on runway lights, cont. water search. 2 Heres with pilings. Drill for water, set pump house, pump water until clear, fill water truck, layout fuel bladder. tank. Drilling piling holes, cant. water search. Nothing recorded on tour sheet. Thaw out piling rigs, cant. water search Nothing recorded on tour sheets. 4 Here loads from Canada w/ rig components. Found water + 5 miles from rig. ·Work on road to water hole. Piling rigs dõWn w/mech. and air problems. 1 Herc from Canada, 6 Herc loads from Fairbanks w/9 -5/8. Drill piling holes 3 Heres from Canada, I Here from Fairbanks w/9-5/8. Drill piling holes, one rig down (oil seal in swivel) No tongs to break out drill collars on rigs. Air compressor in poor condition (on rig). 7 Heres - Canada (Total: 15). 48 men in camp. Drill piling holes. .¡c Both diamond drills (Frontier) down; I-hydraulic system, I-air compressor. Repair rigs. Drilling conductor hole, fish bucket bottom from conductor hole, repair bucket. -7 - r-l C onto 2-12-75 r j 2-13-75 11 LJ 2-14-75 2-15-75 2-16-75 2-17-75 2-18-75 2-19-75 I 2-20-75 2-21-75 2-22-75 2-23-75 f' lu e e Build wind walls &: assemble heaters. 8 Hercs from Canada (Total: 26 (? ) ) 1 Herc from Fairbanks 53 men in camp Repair bucket for conductor drill, drill conductor hole. Unload Hercs. Build wind walls &: Mechanic's shop. Work on piling rigs. 7 Hercs from Canada (Total: 33) Unload Hercs Set up fuel bladder tank Work on stove (? ) @ camp site. 7 Hercs from Canada (Total: 40) Unload Hercs 6 Hercs from Canada (Total: 46) Unload Hercs, work on air strip. Unload Hercs, drill out water well. Unload Hercs, erect shop at location. Erect shop, build camp foundation. Rig up camp, set pilings. Rig up camp, set light plant &: fuel tank, start light plant to warm camp. Rig up camp, set pilings. Insulate camp, check water lines. Dig cellar.· Set pilings, install bladder tank. 2-24-75 Finish shop building, move rig from airstrip to location. 2 -25 -75 Build camp cold -storage room. Cut location pilings to surveyed hight &: clean up location. Moving rig from airstrip to location. Unload grocery planes. l I- I 2 -26 -75 Move rig from airstrip Lay rig timbers. "'" 2-27-75 Lay timbers and matting boards Rig hose on fuel bladder Rigging up. -8- f] r~1 r . L/ r~] tJ i ru' 1_" l- t"- I_- I 2-28-75 2-29-75 through 3 - 2 -75 03-3-75 03-4-75 03-5-75 03-6-75 03-7-75 through 3-15-75 3-16-75 3-17-75 through 3-18-75 3-19-75 3-20-75 3-21-75 "3-22-75 3-23-75 Operational Day 1 3-24-75 Depth 79/ Day2 3-25-75 Depth 512' e e Rig up; set sub structure & derrick starting legs. Work on generator plant.. Rig up Rig up, work on Navy crane Rig up, work on crane, unload 110 barrels of gasoline. Rig up, work on crane Rig up, work on sanitation house (sic) Rig up Rig up, cement 30" conductor pipe. Rig up Rig up, work on camp water heater. Rig up, work on camp water heater, derrick lights and generator. Rig up, mud up, start circulating. Cellar collapsed. Stxaighten and brace cellar. Rig up, rebuild cellar box, cement around cellar w/60sx Permafrost cement. WOe. Rig up. Recement around cellar, WOC. Condition mud. ? men in camp. Rigged up Mixed & conditioned mud Spudded (under 30" conductor pipe) @ 2000 hrs. w/bit # 1, HTC -OSC3AJ, ni" Dri lIed to 79 '. ". Drilled & ran deviation surveys to 512'. Circ. & condo hole. Short trip. Circ. & condo hole. Tripped to log. Rigged up and ran Schlumberger Son-ic log. (Surveys: iO @ 200'; to @ 350'; iO@ 480'. -9- [J [!I [] r~1 [] Day 3 3-26-75 Depth 512' Day4 3-27-75 Depth 512' Day 5 3-28-75 [1 Depth 512' I Day 6 3-29-75 Depth 512' Day 7 3-30-75 I [~ l l l t' Depth ~L¿' Day 8 3-31-75 Depth 512' Day 9 04 - 1 - 7 5 " e e Broke out rotary table, picked up bit #2, HTC-OSC3AJ, 26". Set in table. Picked up kelly. Circ, cond mud, raised vis. Reamed 17~" hole to 26" (to451') Circ, wait on water Reamed 17~1I hole to 26". To 512'. Circ, cond hole Sho rt trip Circ hole clean Spotted pill, trip out. Set back rotary table, break 26" bit, set in table. Picked up 17~" bit and tripped in. Serviced rig Circ and cond hole. Tripped out Rigged to run 20" csg. Welded float shoe on 20" csg. Ran and set 12 joints 133# K-55 Butt. thread csg. w / Baker stab -in float shoe, @ 492. 171 below rotary table. Ran 4~" D~ P. and stabbed float shoe. Rigged up Halliburton and circulated. Cemented 2011 casing w/1260 sx Permafrost cement. Pulled 5 stds. 'TV OC WOC Cutoff conductor and surface pipe, welded on flange. Pressure tested 20tl flange to 1500 psi for 30 minutes, welded 20" to 30", nippled up BOP. Nippled up BOP, rigged kill and choke lines. Laid flare and blooie li,nes to pit. Connected BOP hydraulic lines. Tested BOP valves and lines. Thawed rathole, standpipe and rotary hose. - Ran in hole. Top cart @ 478' ~ -10 - [~~l [1 f1 r fl Cont. Day 9 04 - 1 - 7 5 Depth 513' Day 10 04-2-75 Depth 641' I~ Day 11 04 -3 - 7 5 Depth 8421 Î Day 12 4-4-75 Depth -1256' Day 13 04-5-75 Depth 1529' [" [ L' [ L j Day 14 04-6-75 Depth 1964' Day 15 04-7-75 Depth 2211' Day 16 04-8-75 e e Cleaned out to top of shoe. Pressure tested BOP to 800 psi. Drilled out shoe and one foot of new hole. Drilled to 638' Circulated hole clean. Spotted pill, blew kelly, tripped out Picked up BHA, tripped in with bit #4, HTC-OSC3AJ. Washed to bottom and drilled to 641'. Pulled two stds, worked on pumps, : Tripped for bit # 5, HTC -OWV J Worked on pumps. Reamed 121.11 hole to 181.11 4 . 2 Circulated hole clean, took survey; 10 @ 611'. Pulled bit, changed out jets. Picked up BHA. Ran back in with bit # 5, reamed stabilizer through 20" casing shoe. Drilled to 842'. Unplugged shaker jets, circ and cond mud to raise weight and vis. Circ and cond mud, raising weight and vis. Drilled to 1256' Survey: iO @ 1065'. Drilled to J328' Survey: i @ 1244' Spotted pill, blew kelly. Tripped for bit #6, HTC OWV J 18i" Washed to bottoms, circulated and drilled. Worked on pumps. Drilled to 1529', Drilled to 19641 10 @ Survey: 2 1588' Conditioned hole, cleaned flowline, tripped for bit #7, HTC OWV J 18i" Finished tripping in hole. Tested Koomey remote station Drilled to 2211'. S 10 urvey: 2 @ 1996'. "" Drilled to &-343 r Survey: i @ 2300'. Spotted pill, blew kelly. -11- ['I [] I] l.l [I Cont. Day 16 04-8-75 Depth 2405' Day 17 04-9-75 Depth 2413' Day 18 4-10-75 Depth 2414' Day 19 4-11-75 r] Depth 2414' I I [' l' ! [ Day 20 4-12-75 Depth 2414' , e e Tripped for bit #6 RR, HTC OWV J 18t" Drilled and worked on pumps to 24051. Drilled to 2413 t. Spotted pill, blew kelly, tripped for bit #7 RR, HTC OWV J 18t" Worked on pumps and conditioned hole. Tripped out for logs. Ran DIL and Caliper Rigged down Schlumberger Tripped in, conditioned hole to run 16" casing. Spotted pill, blew kelly; Survey: 00 @ 2400' Strapped out, rigged to run 161' casing T. D. 2414 corr. Ran casing. Finished running 16" casing. Rigged down casing equipment, rigged up to run 4ì" D. P. Ran in hole, circulated and worked on pumps. Rigged up Halliburton and cemented casing. Tripped out five stands. Ran 57 joints (2408.18') of 1611, 84#, K-55, casing,w ith HOWCO float shoe and HOWCO float collar. Total string length 2412.45'. at 2410.5' K. B. Welded on float shoe due to incomplete thread makeup. Tacked casing collar and bottom of Íloat collð."r, and welded top of float collar due to incomplete makeup. Casing was centralized at 23851, 2317', 1915', 1512', 1104',666',4581, 85 t, and 49', all depths K. B. Centralizers were aU tacked because no lock rings were provided and the HOWCO centralizers would not close a.round the pipe. Filled casing every three while running. Cemented with 1400 sx Arcticset and 700 sx Permafrost cement. Lost mud returns after 15 minutes, had zero to 5% mud returns for balance of job. Due to overgauge hole calculated cement requirement was 4114 sx. Average slurry weight was 14. 5 Ibl gal. Displaced drillpipe with 34 barrels of mud. Pulled I.:p five stands, stabbed kelly and flushed drillpipe. WOC T&C stab - in Hung casing Thawed rotary hose, circulated Blew kelly, tripped out Rigged up Schlumberger, ran CBL and Temperature Survey. .." -12 - r-' Day 21 4-13-75 Depth 2414' ['J fJ [J Day 22 4-14-75 Depth 2414' Day 23 4-15-75 Depth 24141 II l] I Day 24 4 - 16- 7 5 Depth 2414' Day 25 4-17-75 Depth 2414' Day 26 4-18,..75 Depth 3057' l 1_- L~ I j I Da y 27 4-19-75 Depth 3939' Day 28 4-20-75 Depth 46551 e e Rigged up and attempted perforate five t -inch holes at 1750' K. B. Pres sured up on perfs. Could not break circulation, shots did not penetrate casing. Re-shot with five shots at 1750' K. B. Broke circ through perfs. Tripped in with Baker R T -8 retrievable cementing packer. Set packer at 1624.30' K. B. Circulated with 500 psi. Cemented through perfs with 2480 sx Arcticset cement. Full returns throughout. Cement to surface. Calculated fillup was 3366 sx, cement channeled. Displaced drillpipe with 40 barrels of mud. WOC. Tripped out with packer. Rigged up Schlumberger, ran CBL and Temp. log. Set back BOP. Finished setting back BOP, cut 201' casing, welded 16'1 casing to 20" casing. Welded on 16" casing flange, tested to 3000 psi for 15 minutes. Nipp led up BOP. Nippled up BOP. Tested blind rams, casing and crossover to 2000 psi for 15 minutes. Tripped in to 1635'. Pressure tested annular, pipe rows, kill-line valve and kelly cocks. Circulated. Drilled out cement, tripped in to collar. Pressure tested perfs at 1750'. Drilled out float collar, tagged shoe. Circulated, cleaned tanks , built mud volume. Built mud volume and waited on water. Drilled out shoe with bit #4 RR, HTC OSC3AJ 12t". Drilled to 3057'. Survey: 10@ 2925'. Drilled to 3939' Tripped out-for bit , S 1) @ 2 30 @ 3 urveys: 1 34 5';"4 Q¡ 39 9'. Tripped in with bit #8, HTC X3A 12-;}". Cut and slipped drilling line. Drilled to 46551. Survey: to @ 4625'. ..,. -13 - r~ ¡-.-.l ,I [~] !] [] Day 29 4-21-75 Depth 52691 Day 30 4-22-75 Depth 5728' Day 31 4-23-75 Depth 58741 Day 32 4-24-75 Depth 6361' ["1 I] I Day 33 4-25-75 Depth 6592' Day 34 4-26-75 Depth 6790 Day 35 4-27-75 Depth 7380' r' I' l~ 1_' I' /' Day 36 4-28-75 Depth 7558' Day 37 4-29-75 Depth 7799' Day 38 4-30-75 Depth 7861' e e Drilled to 5269'. Tripped out for bit. Survey: lio @ 5269'. Finished trip for bit #9, HTC X3A 12i". Drilled to 5728'. Drilled to 5770'. Tripped for bit #10, HTC OSCIG 12i'. Cut and slipped drilling line, changed out swivel. Drilled to 5874'. Drilled 6361'. Drilled to 6592' Tripped for bit # 11 HTC OSC3AJ 12i". Jetted cellar, W.O.O. 16" casing moved up hole, broke weld with 20" casing. Gas increased in 16"X 20" annulus and 201lx30" anBulus. Survey: 2î @ 6560'. Drilled Pulled 44 stds; major repairs to engine and compound drive shaft. Ran to bottom, drilled to 6790'. Drilled to 7380'. Tripped 0'ðt for bit~, Survey: 3 @ 7380' Tripped with bit # 12 HTC OSC3AJ 12i". Drilled to 7558', lost circulation @ 7556'. Spotted two LCM pills of 300 bbl. and 155 bbl. Pulled 15 stds., built volume, lowered mud weith. Spotted 63 bbl pill, regained returns. Ran to bottom, bridges @ 6748 and 6930. Pumped 600 bbl LCM pill. Pulled 15 stds. Mixed LCM, built volume, regained circ. Drilled to 7799'. Lost 155 bbl while dril~ing (241' in 1St hrs. ) .... Drilled to 7823'. Dropped Totco, blew ke lly. Tripped for bit # 13 HTC OSC 1 GJ 12il'. Drilled to 7864'. -14 - r~~ I [J rj C onto 4-30-75 Day 38 . Day 39 5-1-75 Depth 7861 [I [J Day 40 5-2-75 Deptþ 7861 Day 41 5-3-75 De¿'th 78 11 I] Î Day 42 5-4-75 Depth 7861' I ' l' ¡' . e Circulated, made 15 std. short trip. Ran to bottom, circulated, strapped out. 7861 corr. Rigged up Schlumberger to log. Ran electric logs. Finished logging, rig down Sch1umgerger. Tripped in, circulated and condo hole. Tripped out. String up 10 lines. Rigged to run 9 5/8" casing. Rigged to run casing, r::in 9 5/8" casing. Ran 183 joints HydrilSuper EU 9 5/8" 47# N-80 casing. Ran HOWCO Differential Fillup shoe on bottom and HOWCO Differential Fillup collar at top of bottom joint, with HOWCO DV Stage Cementing collar between joints 149 and 150. Total length of string was 7846. 74', with casing shoe at 7843. 74' below rotary table. Centralizers in the centers of joints 1 and 2, and at the tops of joints 14, 15, 24, 147, 148, 165, 175 and 182. HOWCO cement baskets 4 feet below top of joint 15, and two baskets 4 feet below top of joint 148. Differential Fillup collar was at 7795. 52' and DV Stage cementing collar at 1490', String weight 316, 000 Ibs. Cemented first stage with 375 sx neat Class G cement. Dis- placed with 571 bbls of muc. Did not bump plug. Bled back, Shoe held. Calculated rise in annulus was 1190'. &-verage slurry weight 15.6 Ibl gal. Makeup water temp. 55 . Max displacement pressure 1400 psi. at maximim displacement rate of 30 bbl/min. Opened DV collar and circulated through ports. Cemented second stage through DV collar with 800 sx Permafrost cement followed by 300 sx Arcticset cement. Displaced with 109 bbls of mud. Lost circulation when approx. 80 bb1 of cement displaced. Calcualted rise of cement in annulus 1091' when circulation lost. Max pres sure 375 psi. Rate immediately before losing circ was 2 bbll min. at approx. 150 psi. Completed displacement at 2 bbl/rnin. with 0 psi. Closed DV ports, filled annulus with diesel, calculated fluid level in annulus at 362' below rotary table. ý< -15- f-"I r'l [1 fl [1 Cont. Day 42 5-4-75 Day 43 5-5-75 Depth 7861 ' Day 44 5-6-75· 7861' [1 L1 ~ Day 45 5-7-75 Depth 7861' Day 46 5-8-75 Depth 7918' Day 47 5-9-75 Depth 8293' Day 48 l_ 5-10-75 Depth 87031 [ Day 49 5-11-75 Depth r' 8891' Day 50 5-12-75 ¡ Depth 89481 [ . e Landed casing, set slips, cut casing. Nippled up, tested to 3000 psi below blind rams. Started in hole with bit #14 HTC X1G 8i". Strapped in to DV collar, drilled DV collar. Strapped in hole, attempted break circulation, could not circulate with 3000 psi. POH swabbing with junk, kept hole filled. Closed rams, pres sured up on casing to 2800 psi, broke to 1850 psi, then held. Ran Temp. Survey Rë;i.n in hole, circ. bottoms up @ 6640'. Continued in hole, broke circ. at 7112' and 7577'. Continued in hole, drilled collar and shoe. No cement between collar and shoe. Circulated, strapped out. Rigged up Schlumberger, ran Temp Survey and CBL with VDL. Perforated four holes at 7650'. Ran in hole with drillable bridge plug, set at 7685'. Pressured up to 1500 psi, broke back to 1000 psi, held 15 minutes. POH, laid down setting tool. Tripped in. Finished trip in with bit #15, HTC XIG 8i". Drilled on bridge plug, pushed plug to 7839'. Drilled to 7862'. Tripped for bit #16, HTC J22 Bi". Reamed undergauge hole. Drilled to 7918'. Drilled 8293'. Drilled to 87031. Drilled to 8891'. Spot pill Tripped [oJ bit #17, HTC J22 8i". Survey: 0 @ 8860'. .., Cut drilling line, repair rotary torque indicator. Finished trip in hole. Reamed undergauge hole. Well kicked, shut well in, built weight to 10.0 Ib/gal. , -16- [] f'C] r~1 rI [I Cont. Day 50 Depth 89481 Day 51 5-13-75 Depth 9046' . Day 52 5-14-75 Depth 9119' Day 53 5-15-75 Depth 9277' [J [J i Day 54 5-16-75 Depth 9399' Day 55 5-17-75 Depth 9593' Day 56 5-18-75 Depth 9711' Day 57 .5-19-75 Depth 9813' [ L l Da y 58 5-20-75 TD 9900 Day 59 5-21-75 TD 9900' Day 60 5-22-75 TD 9900' r L,~ Day 61 5-23-75 TD 9900' 1- - e It circulated. Reamed and drilled to 894S'. Drilled to 9046'. Drilled to 9074'. Tripped for bit #lS HTC J44 si". Reamed and drilled to 9119'. Drilled to 9277'. Drilled to 9316'. Tripped for bit # 19 HTC DJ33 si". Drilled to J3991. Survey: 1 @ 9316'. Drilled to 9593'. Drilled to 9711', Spotted pill. Tripped for bit #20, HTC J44 si". Survey: 70 @ 9 70Q!. Finished trip in hole. Drilled to 98131 with pipe torquing up. Drilled to 9900'. Circulated and condo hole. Spot pill, tõipped out for logs. Survey: 13 @ 9900'. ., -17 - e e ["¡ 3.2 Daily Mud Record [:-bate Activity Depth Wt. Vise. W. L. F.C. .E.!:L Chloride Solids sd. .r--- It:: Drlg. 17.111 512 9.4 77 15 2 8.4 1100 7 2. 5 2 Rmg. to 26" 390 9.25 97 12. 8 2 1 O( +) 1300 7 2. 0 Rmg. to 26" 512 9. 6 214 13. 3 2 9. 5 1200 10 5. 0 [,~/27 [~/28 Cmtg. 20" 512 9. 5 103 13. 0 2 10. 0 1400 9 :> J - W. o. C. 512 9. 5 48 13. 5 2 10. 5 1200 8 3 /29 W. O. C. 512 9.3 56 14. 0 2 11. 0 1300 7 1 W. O. C. 512 9. 2 128 13. 0 2 10. 5 1200 6 1 3/30 W. O. C. 512 9. 1 101 12. 7 2 10. 5 1200 6 1 W. O. C. 512 9. 1 87 12. 8 2 10.0 1200 6 1 /31 Nip. up 512 9. 1 85 12. S 2 10. 0 1200 6 1 14/1 Nip. up 512 S.9 40 16. 0 1 7. 5 7000 5 O. 75 Nip. up 512 9. 1 144 10. 0 2 7. 5 7000 6 0.75 Nip. up 512 9. 1 90 9. S 2 10. 5 5000 6 O. 75 LJ/2 Drlg. 12.111 630 9. 1 154 9. 7 2 10. 5 5000 6 O. 75 4 Trppg. 9. 3 75 10. 1 2 10. 0 2000 8 5 1/3 Rmg. 18.111 644 9.2 85 10. 2 2 10. 0 1500 E. 5 2 2 /4 Fight Grav. 842 10. 5 220 9. 2 2 7. 5 1300 16 5 Trppg. 10. 1 280 9. 1 2 9.0 1750 13. 5 II ~ 4/5 Drlg. lS.111 132S 10.4 230 9. 2 2 9. 5 1800 15.. 5 2 I Drlg. 1 sIll 10. 5 250 9. 1 2 10. 0 1800 16 3 2 4/6 Drlg. IS.111 1681 10.4 280 9.0 2 10. 0 2300 15.5 3 2. [: - Drlg. IS.111 10. 5 270 9.0 2 10. 0 2000 16 2 z 4/7 Drlg. 18.111 1964 10. 5 250 9. 1 2 10. 0 2000 16 1.5 l~/8 Drlg. 18f1l 10. 5 202 9.2 2 10. 0 2000 16 4 2 Drlg. IS.111 2300 10. 5 230 9. 3 2 10. 0 2000 16 3 Drlg. 18I" 10. 5 195 9. 1 2 10. 0 2000 16 3 ¡Ok/9 Drlg. lS.111 2413 10. 5 200 9. 2 2 10. 0 2000 16 2 2 Circ. 2413 10. 5 202 9. 2 2 10. 0 2000 16 3 lOl/IO ... 2413 10.4 210 9.2 2 10. 0 1900 15. :; 3 2413 10.4 202 9. 1 2 10. 0 1900 15. 5 3 ¡~. -18- Daily Mud Record Continuede . e r~~;¡Date Activity Depth Wt. Vise. W. L. F. C. Hi. Chloride Solids sd. 4/11 Logging 2413 10. 5 215 9. 2 2 10. 0 1900 16 3 [OJ Logging 2413 10. 5 205 9. 2 2 10. 0 2000 16 3 4/12 Run 16" 2413 10. 5 195 9. 2 2 10. 0 2000 16 3 ['1 2413 10.4 150 9. 3 2 10. 0 1900 15. 5 2. 5 W. o. C. 2413 10.3 100 9.5 2 10. 0 1900 15 4/13 2.5 2413 10. 3 100 9. 5 2 10. 0 1900 15 2.5 4/14 '\v. o. C. 2413 10. 3 140 10. 0 2 10. 0 1900 15 2. 5 2413 10. 3 160 10. 0 2 10. 0 1900 15 2. 5 ["14/15 Nipple up 2413 1 O. 3 180 10. 1 2 10. 0 1900 15 2. 5 4/16 Nipple up 2413 10. 3 172 11. 0 2 10(+} 2000 15 3 2413 9. 9 49 2 O( +) 3 10. 5 1700 13 2. 5 4/17 Drl. out 2413 8.9 38 20(+) 3 11. 5 1600 3 Ligno-syst. 2413 8. 8 39 20(+} 3 12. 0 1300 5 2 4/18 Build vol. 2413 8. 9 50 16. 0 2 11. 0 900 4 O. 5 !-J4/19 Drlg. 121.11 2940 9. 0 66 16( +) 2 11. 0 900 4 O. 5 4- Drlg. 121.11 3237 9. 2 46 13. 0 2 11. 0 1100 5 1.5 4- 9. 1 47 12. 0 2 11. 0 1200 7 1 4/20 Drlg. 121.11 3905 9.4 54 12.0 2 10. 5 1000 9 ·1.5 4 9. 8 43 15. 0 10. 5 12 O. 5 14/21 Drlg. 121.11 5050 9. 9 41 15. 0 10. 0 1300 9 O. 5 4 5230 10. 0 44 11. 0 2 11. 0 1000 9 o. 5 4/22 Drlg. 121.11 5344 10. 0 41 10. 0 2 10. 5 1100 10 O. 5 4 5628 10. 2 42 9. 0 2 10. 5 1100 10 O. 2 14/23 Drlg. 121.11 5770 10. 1 41 10. 0 1200 10 O. 5 4- 4/24 Drlg. 121.11 6010 10.4 54 7. 0 2 11. 5 1100 11 O. 5 4- [;' 6221 10. 1 41 5. 8 2 11. 0 1000 7 0.2 4/25 Drlg. 121.11 6512 10. 1 42 5. 2 2 10. 5 900 8 O. 5 4 [' 4/26 10. 0 41 10. 5 8 0.2 Drlg. 121.11 6630 10. 1 39 4.8 2 10. 5 750 9 0.2 4 l~ 4/ 27 10. 1 38 11. 0 10 O. 5 Drlg. 121.11 6967 10. 0 45 3.4 2 11(+) 900 10 0.2 4- 10. 1 43 10. 5 13 O. ì I' 4/28 Dr1g. 121. II"" 7460 10. 5 41 3.8 2 11. 0 11 00 12 1 4- L. C. (Lost returns @ 7556- lost 350 (+) bbls. - build vol. spot L. C. pills. ) I' J I' -19- r- Daily Mud Record Continuee. . e : r-' Date Activity Depth Wt. Vise. W. L. F. C. E!:!... Chloride Solids sd. 11- ) I 4/29 L.C. (Build vol. mix L. C. M. -cello flake and fine walnut hulls) Drlg. 121.11 7700 9.5 47 7. 8 2 10(+) 1000 6 1.5 tll 4 4/30 Dr1g. 121.11 7823 9. 6 43 6. 8 2 10(+) 900 8 2 , 4 II: Tri pping 7861 9. 5 38 6. 6 2 10. 5 900 6 1 5/1 Logging 7861 9. 7 39 6. 6 2 11. 0 900 8 1 r 7861 9. 5 38 6. 6 2 10. 5 900 6 1 · ~I' 5/2 Tripping 7861 9. 5 37 6. 5 2 10. 5 800 6 1 J F 7861 9. 6 41 6. 5 2 10. 5 800 7 1 j · H] 5/3 Running 7861 9. 5 38 6. 5 2 10. 5 800 6 1 9 -5 / 811 7861 9. 5 38 6. 5 2 10. 0 900 6 1 I 5/4 Cmt. 9-5/8" 7861 9. 6 37 6. 5 2 10. 5 800 ~I 7 1 ~ '.''''-0: 7861 9. 6 36 6. 5 2 10. 5 800 7 O. 7:' · "'-,0'. , ii" · 5/5 w. O. C. 7861 9. 5 38 6. 5 2 10. 5 800 6 I 0.7:' Run CBL 7861 9. 5 38 6. 5 2 10. 5 800 6 0.7: I] 5/6 Perf. 7861 9. 1 90 12. 1 4 11(+) 800 4 0.2: 'Y". O. H. 7861 9. 5 35 12. 0 2 11(+) 800 6 0.2: I I- I 5/7 Test Perfs. 7861 9. 3 38 6. 8 2 11(+) 800 5 0.2: ~ 7861 9.4 63 6. 8 2 11(+) 800 6 0.2: i i ! 5/8 Drlg. 8i" 7862 9. 3 47 6.4 2 11(+) 800 5 · 0.2S I ¡I 9.4 45 6. 1 2 10. 5 800 6 0.2S 5/9 Drlg. 8i" 7988 9. 5 47 5.9 2 10. 5 800 8 0.25 I 9.4 47 5.9 2 10. 5 800 7 0.25 i ! 5/10 Drlg. 81.11 8406 9. 5 40· 5. 9 2 10. 5 900 9 0.25 ¡ a i 9. 5 40 5. 8 2 10. 5 900 9 o. 5 II ¡ ..~. 5/11 Drlg. 8il1 8773 9.6 5. 9 2 10. 5 1000 10. 5 0.75 9. 5 40 5. 8 2 1000 10 O. 75 ,[ 5/12 Gas show 8891 9. 6 40 5. 8 2 10. 5 11 00 11 1 ¡ Wt'g. mud 10. 0 48 5. 7 2 10. 0 3600 13. 5 O. 75 I . 81.11 [5/13 Dr1g. 8968 10. 0 55 5. 6 2 10. 0 3600 13. 5 o. 75 a 10. 0 68 5. 5 3 10. 0 3500 13. 5 O. 75 " 5/14 Dr1g. 8i" 9071 10.0 90 5. 5 3 10. 0 3500 14 1 Tripping 10. 0 52 5. 5 2 11 (+) 4000 14 1 ." -20- Daily Mud Record continued' . e f'~l Date Activi. ty Depth Wt. Visco W. L. F. C. .E!i. Chloride Solids sd. r~~15/1 5 Drlg. 8ìll 9158 10. 0 55 5. 5 2 11(+) 4200 14 1 10. 0 72 10. 0 14 1 fJ 5/16 Drlg. 8ìll 9310 10. 0 63 7. 8 2 10. 5 3500 13 1 9352 10. 0 52 7. 8 2 10(+) 3600 11 1 !j 5 /1 7 Dr1g. 8il1 9457 10. 0 56 7.2 2 10(+) 3800 10 0.75 10. 0 68 10(+) 9 0.75 [15/18 Drlg. 81.11 9638 9.9 45 7.4 2 11. 0 4000 7 0.25 a 9. 9 49 10. 5 5/19 Dr1g. 8ìll 9720 9. 75 63 7. 6 2 11. 0 3800 10 o. 5 10. 0 48 7. 6 2 11. 0 3400 9 0.25 5/20 Drlg. 8ì" 9850 9.9 54 7. 8 2 11. 0 3400 10 0.25 T. D. 9900 10. 0 57 7. 6 2 11. 0 3500 9 0.75 5/21 Logging (Spot checked- no report. ) I] 5/22 Plugging (Mud engineer released) [J 5/23 Plugged & Suspended 81 lJ [~' l_' L I ." -21- ~~ ~ ~ 3.3 Bit Record Run No. M{l.ke Type Ser. No. Size In Out Feet Hrs. Wt. RPM Jets Condo 17í 2-22 I. HTC OSC3AJ JE866 63 512 449 20 5-15K 50-150 1-28 . 2. HTC OSC3AJ FE407 26 63 512 449 15 4~8K 110 3-20 3. HTC OSC3AJ HKl 57 12l. 512 639 127 4l. 10~15K 60 3~15 e 4 2 4. HTC OSC3AJ FX838 12l. 639 644 5 2 10~15K 60 3~15 1-1~1 4 5. HTC OWVJ KJ 769 18i 492 1328 836 28l. 1 0 - 2 OK 70 3-18 5~1~0 2 6. HTC OWVJ KK134 18i 1328 1964 636 26l. 10~15K 70~90 3-18 2 7. HTC OWVJ KJ054 18i 1964 2343 379 28 10-20K 80~100 3-18 1-1-1 I N N 8. #6RR OWVJ KK134 18l. 2343 2413 70 9 5íK 60 3-18 1-1-1 I 2 condo 18i 9. #7RR OWVJ run 2413 2413 0 3 0 3-18 10. #4RR OSC3AJ FX838 12l. 2410 3939 1529 24l. 25-28K 80-120 3-13 2-2-1 4 2 12t 2-13 e II. HTC X3A JC336 3939 5269 1330 35 25-40K 80-120 1-14 2-2-0 12. HTC X3A JB980 12l. 5269 5770 501 17í 20-60K 80-115 3-14 1-1-0 4 13. HTC OSCIA JB138 12l. 5770 6592 822 39~ 55-60K -90-105 3-14 4 12l. 29-} 1-13 14. ITTC OSC3AJ HK498 6592 7380 788 50-55K 105 2-14 6-8-1 4 1 5. ITTC OSC3AJ HK 1 51 12l. 7380 7823 443 23 50K 100 3-14 4 ,. .,.~ , j ,..---., --.J i .- ~ r--------- ~ ¡ . ~ Bit Record Continued. . . Run No. Make Type Ser. No. . Size In Out Feet Hrs. Wt. RPM Jets. C and. .. . 16. HTC OSCIG HE795 121. 7823 7861 38 41. 50-70K 80-100 3-15 5-4-1 4 4 17. HTC XIG EW 484 8t 7861 7862 1 It 30K 70 3-10 1 -1 -1 18. HTC XIG EN194 81. 7862 7897 35 131. 40-45K 80 3-10 7-8-_ z 4 19. HTC J22 HH868 8t 7897 8891 994 69 40K 40-45 3-10 8-8-2 20. HTC J22 HF806 8t 8891 9074 183 39 45K 45-60 3-10 7-8-2 2l. HTC J44 DN783 81. 9074 9316 242 38 40K 60 3-10 1-7-1 z 22. HTC EB637 81. 9316 51.! 1-10 I DJ33 z 9711 395 z 40K 60 2-11 4-3-1 N 1-10 l.V 8t I 23. HTC J44 DN070 9711 9900 189 29 45K 60 2-11 3-2-1 e e e rl 3.4 Deviati on Surveys [1 DEPTH ANGLE 200' i deg. 3501 ~ deg. 480' i deg. r··! 611' 1 deg. \ I 1065' 3 deg. 4 [:1 1244' 1 deg. Z 1588' 1 deg. Z 1996' 1 deg. Z 2300' 3 deg. 4 2400' 0 deg. 2925' 1 deg. 3425' 1 deg. (1 3939' 3 deg. 4 4650' 1 deg. 4 [J 5269' 1l. deg. 4 6560' 2l. deg. z i 7380' 3 deg. 7815' ll. deg. 4 8860' 0 deg. 9050' - l. deg. 4 9316' 1 deg. 9700' 7 deg. 9900' 13 deg. All surveys listed were obtained with a Toteo, Single Shot, wire line retrievable unit. lc. l_ l_ "" -24- ['j [1 f1 r ¡ L lJ 4.0 4. 1 rl I ¡ . , . I I e e PERMITS AND REPOR TS U. S. DEPAR TMENT OF INTERIOR GEOLOGICAL SURVEY APPLICA TION" FOR PERMIT TO DRILL, DEEPEN OR PLUG BACK FILED WITH DIRECTOR, NA VAL PETROLEUM AND OIL SHALE RESERVES ,- ." -25 - rC] [] rC~l rl Il I~ Î [~~\ l~ l~ l l e e 4.2 STATE OF ALASKA OIL AND GAS CONSER VA TION COMMITTEE PERMIT TO DRILL OR DEEPEN FILED WITH DIRECTOR, NA VAL PETROLEUM AND OIL SHALE RESERVES ., -26 - \l \l IOj ! . \] Î II \ t · II \ I e e 4.3 U. S. DEPARTMENT OF INTERIOR GEOLOGICAL SURVEY WELL COMPLETIO:\f OR RECOMPLETION REPOR T AND LOG FILED WITH DIRECTOR, NA VAL PETROLEUM AND OIL SHALE RESERVES ... -27 - [, r r r 4.4 [ Î l~ (~ tt { I I e e STATE OF ALASKA WELL COMPLETION OR RECOMPLETION REPOR T AND LOG FILED WITH DIRECTOR, NAVAL PETROLEUM AND OIL SHALE RESERVES -oF . -28- 5. 0 GEOLOGICAL CONSIDERATIONS 5.1 Sidewall Core Descri2tions 16NZW-1 By S. P. Burden (Z5171 - 78401) M. L. Mangus and M. D. Fishburn (78751 - 98801) -29- 1";1 [I f';1 NO. DEPTH r"' 1 9880 I I II 2 9858 3 9819 4 9779 5 9738 II 6 9654 7 9575 I 8 9530 9 9412 10 9375 11 9268 I l,=:,oo; 12 9185 t._ 13 9004 I l_ ... L e e SIDEWALL SAMPLE DESCRIPTION WELL NO. 16N2W-1 By M. Fishburn and M. Mangus DESCRIPTION Limestone. Black sandy, hard, NOSCF, argillite slaty, micro quartz veining, fractured, 450 dips; 3/4" recovered. Limestone. Light gray, silty, calcareous, carbonaceous, poorly sorted, fine to coarse grained, NOSCF, dead oil stain, crushed sample argillite? ; 1/311 recovered. No recovery. Shale. Medium gray, silty, carbonaceous micaceous, hard, banded, phyllitic texture, metallic luster, NOSCF; tll recovered. No recovery. Shale. Medium gray, clayey carbonaceous, hard, banded, phyllitic texture, metallic luster, NOSCF; 111 recovered. Sand. Medium gray silty, carbonaceous, poorly sorted, very fine to medium grained, sub-round to round, micaceous, banded, phyllitic texture, NOSCF; 5/811 recovered. Mudstone. White to light gray, silty, very calcareous, carbonaceous, bioclastic, NOSCF, deal oil stainings; tll recovered. No recovery. -. Shale. Apple green, silty, clayey, phyllitic, hard, banded, pyritic veining, NOSCF; 1-3/411 recovered. Sand. Medium gray, very calcareous, carbonaceous, poorly sorted, very fine to medium grained, angular to sub- angular, hard. Scattered quartz grains, no odor, no 'visible cut or stain, even to spotty yellow gold fluorescence, faint light white cut fluorescence; 5/811 recovered. Filter cake. No recovery. Siltstone. Dark gray, very calcareous, very hard, dense, NOSCF; trace recovered. -30- e e f~l Well No. 16N2W-l NO. DEPTH DESCRIPTION I] n fl Il 14 15 16 17 18 19 8945 8865 8826 8722 8631 8637 [1 20 8664 21 8478 [1 22 8445 I 23 8388 24 8217 25 8206 r> [' ¡' ¡' 26 27 " 8194 8187 .,., No recovery. Mudstone. White, silty, clayey, hard, no odor visible stain or cut. Even to spotty, dull yellow gold fluorence, bright yellow cut. Rapid streaming yellow cut. Sand. Tan, silty, slightly calcareous, poorly sorted, very fine to fine grained, sub-round to round. Firm, no odor, even to spotty dull, yellow gold fluorescence, cut fluorescence milky white, dead oil, some cut when acidized; i" recovery. Shale. Medium gray. slightly silty. Hard, blocky, fractured, NOSCF. No recovery. Sand. White, silty, calcareous, carbonaceous, very fine to fine grained, sub-round to round. Hard, fractured, NOSCF; 3/4" recovered. Mudcake. Mudcake. No recovery. Sand. White, very silty, calcareous, carbonaceous, poorly sorted, fine to coarse grained, ångular to sub-angular, slightly micaceous, pebbly, bentonitic, friable, KOSCF; 1 I. recovered. No recovery. .-., Sand. White, very silty, calcareous, carbonaceous, poorly sorted, very fine to medium size grains, angular to sub- angular, slightly micaceous, bentonitic, very slight fluor, poor porosity and permeability. Sand. White, very silty, slightly carbonaceous, poorly sorted, very fine to fine grained, sub -round to round. Slightly micaceous, bentonitic, very friable to firm, ~OSCF; 5/8" recovered. Poor porosity and permeability. Sand. White, very silty, slightly carbonaceous, poorly· sorted grains, fine to very fine, sub-round to round, slightly micaceous, very friable to firm, bentonitic, NOSCF; i" recovered. Poor porosity and permeability. -31- e e [/ [I rl I] 11 Well No. 16N2W-l NO. DEPTH DESCRIPTION 28 8175 No recovery. 29 7912 Siltstone and Shale. Dark gray, sandy, very calcareous, carbonaceous, poorly sorted, fine grained, NOSCF; t!: recovered. 30 7875 Sand. Dark gray, silty, very calcareous, fine grained, poorly sorted, grains sub -round to round. Hard, banded, contains mica and pyrite NOSCF; ill recovered. I ì j i I ) t [' l' ..,., -32 - r"] r I ["1 [e I I'~ cl Cape HalJ:ett NO. D?P'lIH 1 7840 2 7821 J 7806 4 7774 5 7715 6 7680 7 7645 8 7590 IJ LI I 9 7576 10 7545 11 7530 l_ L- t I L. 12 7520 e e 16N-2H-1 SIDE VlÞ..LL :CRES DESCRIPT2:0N Siltf;tone, mainly Quartz grains, sub~n~ular, well sorted, very poorly consolidated,.s:1~ntly . calcareous, very argillaceous. Fa1nL aarken1ng along irregular, tight fractu~es. As above but finer, bentonitico No reaction to Chlorothene. As above. The clayey matrix is less bentonitico Appears weto As above but darker, more argillaceous, grading to a silty Shaleo Shows very fine banding. Shale, grey to dark grey, rough texture, irregular fracture, silt Yo. As above. As above. Less silty, subconcoidal fracture in part As above but slightly softer, in general lightero Some very fine, light and dark banding. The light bands are more silty. Siltstone, dark grey, mainly Quartz grains, sub- angular, well sorted, very argillaceouso Faint yellow fluorescence when cut with Chlorothene. Siltstone as above, grading to a very fine Sanàstone, slightly calcareous, less argillaceouso Bright yellow fluorescence when cut wit.h Chlorotheneo As above but ~ore brovmish-grey, poorly consol- idated. Fluorescence as above. Slightly coarser, salt and pepper, Quartz and Chert grains, subangular, well sorted, very pool~ly consolidated, very ar€;illaceous. Bright yellow fluorescence when cut with Chlorothene but has a wet appearance. 13 7506 Shale, dark grey, smooth texture, platy, not silty. 14 7490 Shale as above, but blockyo 15 7497 Shale as above, very slightly bentonitic, soft. -33 - f~ [j [1 fl fl L. fl Cape Balkett No. DEPTH 16 7370 17 7326 18 7265 19 7220 20 7194 21 7142 11 U i! 22 7092 23 7022 24 6994 25 6006 ;- 26 6891 27 6859 28 6780 29 6729 30 6676 31 6624 32 6574 33 6532 [1 I_! ¡ . fi I · e 16N-2W-1 DESCRIPTION Shale, grey, slightly rough texture. Occurs in thin laminatio~s. Trace of very finely crystalline Pyrite. I As above but not so finely laminated. Softer than above, almost a clay T\1Uàstone. e Shale above with a slightly rougher texture. Shale, grey, slightly fissile. Shale, grey to dark grey, rough texture, hackly fracture, soft. Siltstone, grading to a fine Sandstone, salt and pepper, Quartz and Chert grains, subangular, poorly sorted, poorly consolidated, calcareous, friable. Shalè, dark grey, silty, grading to an argillaceous Siltstone, very soft, poorly consolidated. Shale, dark grey, smooth texture, subconcoidal fracture. Shale, smooth textu.re, subconcoidal fracture. Shale as above, but lighter grey with some silty bands. Shale, dark grey, fairly smooth texture, irregular fracture, Shale as above~ Some very fine, light and dark banding. Shale as above. Trace of extremely fine siltiness. Shale as above, grey to dark grey. Slightly rough texture. Stale, grey, soft, rou.gh texture, irregular fracture.. Shale, soft, rough text"J.re, irregular fracture~ Shale as above, with a slight brovrn tinge~ Slightly more compact 0 Siltstone grading to a very fine Sandstone, Quartz and Chert grains, subangular, well sorted, poorly consolidated, slightly calcareous, very argil12.ceous, no shews. -34- 11 [-I [1 [ I ¡ 01 Cape Halkett No. DEPTH 31} 6488 35 6440 36 6364 37 6315 38 6275 39 6234 40 6184 41 6136 42 6084 43 6030 44 .5985 45 5938 46 .5867 47 5820 48 5763 49 5712 50 5670 51 Z)6?2 - - 52 5580 53 5547 ."., 54 ~4~6 ..-' ..-' t'1 - l [- r' I I . 1e2W-1 e DESCRIPTION Shale, dark grey, slightly smoother texture, irregu.la.r fracture, more compa.ct than above. Shale as above, with some very fine silty bandin~. Shale, grey, silty.. soft. Shale, grey, rough texture, irregular fracture, more compact than above. Shale, grey, silty, soft. Shale as above, less silty. Shale as above, smooth texture, irregular fractu~e, firm Shale, grey as above, irregular fracture. Shale as above, containing a high percentage of subcolloidal Silica, in part silty. Share as above, grey, rough texture, irregular fractu.re, with some very fine Silica. Shale as above but very silty in part. Shale, grey, very slightly silty, rough texture, irregular fracture. Shale, grey, with some very fine Silt bands. Shale as above, smoother texture, less silty. Shale, grey, with very finely divided Silica, rough texture, irregular fracture. Shale as above, with scattered, very fine Silica. Shale, grey, with increased very fine Silica cc~tent. Trace of Silt. Shale as above, in part silty, in part with very fine, alternating Shale and Silt beds. Fairly soft. Shale, dark grey, smoother texture, platy. Widely spaced, very fine Silt bands. Shale, grey, rougher texture, irregular fractu::.e, ""11' ,c:-r."tl 'l c;,.....1.. 1 tv. ~ c" .. ...... -,.¡ - v Shale, grey, smoother texture, less silty. So~e dark, shiny streaks, poorly preserved. -35 - e Cape Halkett 16N-2W-1 DESCRIPTION §þ~le, grey, rough texture, hackly fracture, very fine, irregularly spaced Silt layers I~! r~ II \1 [J !'ro. DEPTH SS 5376 56 5264 57 5156 I 58 5047 59 4973 60 4852 61 4760 62 4650 63 4554 64 4425 65 4358 66 4270 67 4204 68 4168 69 4104 70 4080 71 4040 ?? 3990 , .- 73 19~2 - ..I .... 74 )890 l ~ r ' I' r~' IH' I ' e Shale as above with a slightly bro~~ish tin£e.. Some very finely divided Silica. Shale, lighter grey, rough texture, irregular fracture, silty, with increased concentrations of Silt in fine bands. Shale, grey, less silty than above. Shale, dark grey, silty, with some increased Silt concentrations along partings.. N·o recovery. Shale, grey to brovmish-grey, fairly soft, slightly sil t~{.. Shale, grey, rough texture, irregular fracture, silty.. Shale, slightly darker grey, rough texture, irregular fracture, silty. Shale grey and Siltstone, light grey. Irregular bands.. Shale, grey, silty, rough texture, irregular fracture. Shale, darker, more compact, with irregular, rare, thin Silt layers Shale, grey, silty, rough texture, irregular fracture .. Shale, grey, smoother texture, not silty. Shale as above.. Shale, grey, silty. Alternate, very fine bands of Silt and Shale. Silty Shale as above. Some dark grey Shale, smoother texture, subconcoidal fracture. Shale, grey, silty, with very fine, lißht and dark banding. Shale, grey, rough textur'e, hackly fr2.8ture. Trace of fossil reulacement buv Marcasite. , "" Shale, grey, rough texture, irregular fracture. High content of very fine Silica. -36- I [-:¡ [1 [1 r [I [r- r\ If l [\ t t! [1 \ Cape Halkett No. DEPTH 75 3812 76 3782 77 3736 78 3672 70 3620 .,; 80 3586 81 3556 e e 16N-2V!-1 DESCRIPTION Shale, grey, with some irregular Siltstone layers Shale, grey, smooth texture, subconcoidal fracture, compact. Shale, grey, silty. Uneven, fine banding of Shale and Siltstone. Shale, grey, smoother texture, with irregular, silty patcheso Shale, bro~~ish-grey, rough texture, irre~~lar fracture, silty. Shale, darker grey, smoother texture, alternating with irregular bands of very silty Shale. Shale, brovmish-grey, smoother texture, with scattered, very fine Silica particles. 82 3515 Shale, grey, . slightly~~-ª-il ty, rough texture, ~. - ~ ----~- ·---~rrfegÜIarfrai::ture. 8~ 3490 ./ 84 3460 Be:. 3422 ./ 86 3392 87 3357 88 3332 8e 3305 " 90 3267 91 32 L.~8 92 3210 5 Q~ 3174 , -' ." 04 3167 ,. Shale, grey, rough texture, irregular fracture, with very finely disseminated Silica; No re co'rery. Shale, cro~~ish-grey, softer, irregular fracture. Shale ,grey, rough texturep silty, com~act. Silty Shale~ Alternating, very fine, light and dark bands. Shale, grey, silty, rough texture, irre~~lar fracture. Siltstone, r;rey, argillaceous, very poorly consolid2.~ed Siltstone as at~ove, but much more cor:1pact. Siltstone, light grey, subangular, hard, well consolidated, slightly calcareous, less argillaceousc Shale, darker grey, ~moother texture and Shale, lie;ht gr!FY, silty, in thick, uneven tandR. Siltstcne, liEht grey, very arcillaceou2, poc~ly consoli.Öd::edo D~rker ;~ey Siltstone, very argillaceous and softer than above. -37- II Cape Halkett [¡ No. DEPTH 95 3054 lJ 96 2950 1\ 97 2897 I 98 2860 99 2810 [\ 100 2786 101 2755 102 2721 I" ¡ I 103 2690 104 . 2654 105 26)0 106 2~86 -' 107 108 2536 2517 [' j 1 1 1 ~ e e 16N-2V!-1 DESCRIPTION Shale, grey f rov.gh te):ture, hackly fracture, 'dense, comract. Shale, grey, smoother texture, co~p~ct, al~ost a r..Iudstcne. No recovery. Shale as above, but slightly silty. Shale, grey, smoother texture, silty, 'with thin bandi~g and some thin Silt layers 0 Shale, grey, silty, with rare carbonaceous specks. Siltstone, grey, hard, co~pact, 2rgillaceous. Shale, grey, silty, with irregular patches of Sandstone, salt and pepper, fine, calcareous, suban~~lar, well sorte~o No recovery. Shale, bro~~ish-grey, silty, rough textuxe, irregular fracture, with so~e rusty streaks. Shale, bro\~ish-grey, silty, with some lenses 6f fine Sandstoneo Shale, grey, very silty, compact, with scattered rusty spots; Shale, light grey; bentonitico Shale, grey, softer than above, compact, in part silty. -38- r----, -- i :...J L ---W ----, I~ 4.~ W' ~1, , I .. --1J __c._ ' '.J .JU N 1 6;975 I J-> ,0 I OIL SHOWS ..--.-- yfrR/l. TECII. INC. /:~. ~:" ~^\)'l STAIN cuT FLUORESCENCE. CUT I'LJOr;tSC£r.CE WELL ~~!'.J_IL<\l~d+ U I '-... ~"__ ,_ LOC.-tl.t~~t~A. ~ .p__, _ __ O~ O~ ,'- "(::'¡- .."....... O~ ."", '- (-!- ~ !v \' ."'~' ..tv (\ Ov ,\~" , ,,[' V(jf~O .~~ \~..;§ ~ ,,~v (~O= ~'l-J. -¡];';;-iNi'71ïA;~~:~P;j-Y'iíï'¡hj;- _~/O'nJ..__.._·l!.'!J>,,~1 _ ,.-) Car6, cr.,.,,,, et/ .r,J,,~. (.I1rr,II.,lf't, '. eNf.S/H:.çI_lf{!2.i:1 8 'TiWv Lt., TIt.. ""~'/I7V.9.¡f )-.-L-..f:!.t'LLIJ..~U~.I!...' T{'I!.. '0 ------~t'lirvlt~ .0\1 AÕ';'V3'--'- __~.J:!.~~~fG LuU:'''_~ ::) "Tt'llfCM.,.. 1\, Aað~fi' - )ß'O<-ldlkc. .__ ___~_dlJ.ø.J-"JLItJ:T:L~. 8 ::) J>h!l,¡,ffC., Py,.,~.-c. vr:,nll:.J 'Ö $'arl~"1'"6 ,51'41,7$ ~') , j-¡;ï);;:;:~-;-;'I''''S ~ \Arb- -.----.--...-.......--... .. - - -. ..,.-.-- .------.------'-- _u_ ~~'I.. _. ..__.~._~___x .__; ._.____ ____.i.____~~_..x -.--- -- - ~_.- )t. )!. v'-'-" --- ---_. -g-~---~.- 1'--r: f.. ~ ¡f, ~ ···_·.4__..._·_·_4_____.._. ..."_..,.__~___ ..-----_. ___.___i:-.__.___.____~" _____ It I. x --- ...._-- -_......--_.__..~ ---~ --- '!..... ~ - -- ..- ~ II. t _ .---.-- --- ----:-'4rf.,----1-- Jor _. _;(__.__ _ J!.. IJ ~. .oi~1,A ~_ j-It. ,HY!'_ ,c ---" '-- .--.. ---_ _______ J!.. -.---.' -------.- .------ ---- r.J1{r ..... 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ADUN()M~T COMMON RARE SLIGHTLY OR SLIGH" ~O ..:'. \ p Pt___ ~ PI'" p P¡fl' -= cc..á{j:Jj~ïf.1iE~·_'-_· 4ea/qwi...::.£.(k t<t¡ LI..f ORIG.N/l~~Jtrtltl;:ph~ PO'll! t:. or ; RP.Un 7') GS· Fl· 213 ..,.. 0 5. Z Sample Descri2tions 16NZW-1 By S. P. Burden (6451 - 78641) M. L. Mangus (7870' - 99001) -41- r ~ Ø$5 r r 680 F I ::::J L 690 700 710 C 720 I 730 740 e e Quartz grains, clear and frosted to white, angular to semiround, coarse, poorly sorted. Chert, smoky, light brown and light greenish-bro~~ to black, subangular to semiround, coarse, poorly sorted. Trace of chalky Lirnestome. Trace of dart breen, chloritic material. Trace of Lignite. Tr~ce of preserved wood. Quartz grains, frosted. coarse to medium, semiround. Trace of Sandstone, clear Quartz grains, fine to medium, subangular, poorly sorted, very poorly consolidated with siliceous cement. Small amount of Clay, bentonitic, silty, slightly calcareous. Trace of Sandstone as above but more rounded, with better consolidation, non- calcareous, with scattered, fine Chert grains and a trace of finely disseminated Pyrite. As above, with increased, finer Sandstone. Trace of finely crystalline Pyrite. As above. Mainly fine, poorly consolidated Sandstone, with scattered Chert grains, in part medium. Sandstone as above, but more poorly sorted, with increased Chert grains, smoky and subangular to black and more rounded. As above. Considerable unconsolidated, clear Quartz Sand. As above. Reduction in fine Sandstone and loose Sand. Increased rounded, black Chert grains. Trace of rounded, frosted Quartz grains. 750 As above. Trace of angular, clear Quartz grains. 760 Increased Sandstone and fine Sand. grading to a Silt. \ ¡ ! ¡ I t_ 770 780 790 I I L 800 810 I t As Above. Some chloritic material, bentonitic. Fine Sandstone, poorly consolidated and Sand, grading to a Silt, with scattéred, coarser, black Chert grains. Chloritic material as above. As above, with reduced Chert gra.ins. Trace of a Brach- i op od . Coarse Gravel, mainly Chert. ~~o~ulesJ mainly Chert with so~e Quartz, clear to frosted, subangular to semiround. Some Sandstone as above, more poorly sorted. -42 - e e Cape Halkett 16N-2W n D [1 II l~l 840 Coarser grains grading to nodules. Some Quartzite, in part with a light green stain, probably from Chlorite. Trace of silty elay. Trace of Dolomite, crypto- crystalmine, argillaceous, with a very high Silica content. Trace of Gneiss. 860 Fine to coarse gravel. Chert as above, more subangular, less rounded, poorly sorted. Quartz nodules, fine to coarse, frosted, subangular to semiround. Small amount of Sandstone, fine to coarse, poorly consolidated. Some Sandstone, Quartz with rare Chert grains, poorly sorted, very well consolidated. The grain boundaries have a fused appearance, an Orthoquartzite. Some banded gneissic material. Increased fine, unconsolidated Sand with large rounded nodules and coarse grains of black Chert. Sandstone, fine to medium, angular to subangular, poorly sorted, poorly consolidated, with a siliceous cement. Chert grains and nodules as above. Increased Quartz nodules. Trace of Orthoquartzite. Some preserved wood on the shaker. Some of it appears to be from a palm. 880 n [J I 900 Increased fine Sandstone with a minimum amount of cement. Sand 30%. Decreased Quartz. Quartz and Chert pebbles as above. Some poorly consolidated, very light bro~~ish-grey Sandstone, with rare, scattered Chert grains. Some big pieces of a palm bole on the shaker. 940 As above. Nodules are subangular to semiround. Trace of Sandstone, salt and pepper, Quartz and Chert graims, coarse, poorly sorted, well consolidated, with a siliceous cement, indurated. 920 960 As above. Trace of Gneiss. Some fine to coarse, loose Quartz Sand. 980 As above. l~1 I~l l1 II I ì 1000 1020 1040 As above. Quartz and Chert nodules. 50% Of the Chert nodules are ang~lar. One piece of of very finely banded, green and light brown, siliceous material. Some Lignite showing the wood graining. The fines are mainly QuarÊz, light grey to very light green, with scattered Chert, angular to subangular, poorly sorted. . Chert, Quartz and Quartzite nodules as above. Increased ~loose Sand, fine to coarse, more rounded than above, poorly sorted. As above. Trace of Quartzite. -43- e Cape Halkett 16N-2W r¡ 1060 n Ii 1070 n 1-; t 1080 rl 1100 I ~ tJ ~ . 1110 1120 11)0 1140 1150 l' [ ! ,I I ! j I 1160 1170 1180 1190 1200 e As above. Loose Sand, fairly well rounded. Nodules are more rounded. Fine Gravel as above. Rounded, black Chert nodules as above. Increased Quartz, mostly frasted, subangular to semirounà~ Some brovm to smoky Chert angular fragments. Some bluish-grey Clay in the sample. Some loese Sand, The fines show a trace of Horneblende but no eviàence of Orthoclase. As above~ Increased Quartz and some rounded Quartzite nodules. Trace of brownish-grey, subtranslucent Chert in angular fragments. Increased Clay, silty to sandy. Increased Sandstone with a bentonitic matrix, poorly consolidated. Clay, light grey, silty to samdy. Pebbles, mostly Chert with some Quartz, fairly well rounded. Trace of Pyrite. The viscosity is 280 and is still cleaning the hole. Increased silty Clay. Nodules as above. Clay as above, but more silty, grading to a Silt. In part the Clay is finely sandy. The pebbles are rounded, smaller, of Quartz and Chert. As above. High percentage of Silt and Clay; As above. Some angular, brown, subtranslucent fragments of Chert, with a subconcoidal fracture. As above. Increase in Quartz nodules, in general smaller than above. Increase in loose Sand, subangular to semi- round grains, poorly sorted, with an increase in Chert grains. Trace of Horneblende~ The fines are a littly more rounded. As above. Some coarser, loose Quartz and Chert Sand, subangular to semiround. Trace of finely crystalline Pyrite. Clay , Silt and Sands·tone as above. Reduced loose Chert and Quartz grains, smaller than above. As above. Trace of preserved wood. Clay, Sand and Silt with scattered Chert and Quartz nodules, mainly rpounded. Trace of Aragonite. "" As above. Trace of ouartzitic Sandstone. Trace of finely crystalline Pyrite~ -44- e Cape Halkett 16N-2W [1 1220 II 1240 ·--1 i i I 1260 Î 1280 [¡ 1300 I' e Î 1320 1330 ~ ( l' l' {' ( 1340 1360 1370 1;80 I , e Clay as above. Chert and Quartz nodules. Trace of Aragonite. Trace of Sandstone, Quartz and Chert grains, fine, subangular, poorly sorted, well consolidated with a siliceous matrix, argillaceous, tight. Some loose Quartz and Chert grain Sand, fine to medium, subangularo Some of the Quartz has a greenish tinge. Clay, bluish-grey, bentonitic as above. Nodules, mostly Chert. The black Chert nodules are mostly rounded. Fine Sand, angular to subangular with some Chert grains. As above. Nodules as above. Some angular, smoky Chert fragmentso Clay, Silt and Sand. As above. Increased Sandstone, Quartz and Chert grains, fine to coarse, subangular. In part the Quartz has a greenish tinge. Some nodules as above, mainly sub- angular. Some of the Chert is bro~~ish-grey and sub- translucent. Clay as above. Reduced noduleso Increased Sand, coarser, more rounded. Post trip sample. Clay containing scattered Chert pebbles, angular to semiround, in part with a sub- concoidal fractureo Rare subangular Quartz pebbles. Small amount of Quartz and Chert Sand, coarse, poorly sorted. Trace of Siltstone, very light bro~~ish-grey, well consolidated, with a slightly calcareous matrix. Trace of Chert in the Siltstone. Trace of fine Silt in the Clayo As above. The Clay is bentonitic. As above. Trace of very light grey Sandstone, fine, subangular, poorly sorted, well consolidated, with a siliceous matrixo Small amount of brownish-grey, angular Chert fragmentso Trace of Lignite, almost a Coal. Trace of Sandstone, white, subangular, slightly coarser than above, well consolidated, calcareous matrix, tight. Tra.ce of finely crystalline Pyrite. As above. Chert and Quartz nodules. Increased light bro~TI, argillaceous Siltstone~ Trace of white, calcareous Sandstoneo Trace of finely cr;ystallir_e Pyrite. Trace of light green, bentonitic Shaleo Increased loose Silt. Trace of a dark green nodule, appears basaltic, very hard. .,. As above. Considerable loose Silt and silty Clay. Small amount of loose Sand. Some light grey Siltstone, slíßhtly argillaceouso Trace of clean, very fine Sandstone. -45- 1 ¡ e Cape Balkett 16N-2W 1390 í . 1400 r I " iL20 1440 1450 r" I" i 1460 1470 1480 I" \ \ 1 1490 1;00 I' e Increased light brownish-grey Siltstone, and with some Clay inclusions. Rare Sand Siderite grains. Some finely crystalline of Chert and Quartz nodules, subangular. argillaceous grains. Rare Pyrite. Trace As above. Small amount of Sandstone, clear Quartz grains, fine to medium, subangular, poorly sorted, well consolidated, calcareous matrix. Chert and Qua~tz nodules as above. Trace of dirty Siltstone. Small amount of angular Quartz grains~ Trace of light green Quartz Sandstone, with rare, scattered Glauconite grains. As above. In part the Sandstone has a greenish tinge. ReducedChert and Quartz nodules. As above. Increased Siltstone, light brownish-grey, hard. Chert and Quartz nodules. Trace of Sandstone as above. Trace of Quartzite nodules. Trace of arkosic Sandstone, with Quartz, Horneblende and Biotite grains. Small amount of' Pyrite. Reduced Clay. Trace of loose Sand, Quartz and Chert grains, fine to coarse, subangular to semiround. Trace of Aragonite. Reduced nodules. Reduced Clay. Small amount of white, calcareous Sandstone. Increased Siltstone, light bro~~ish-grey, soft, argillaceous. Trace of finely crystalline Pyrite. Loose Sand and Silt as above. Reàuced Chert nodules. Some angular to semiround Quartz fragments. Trace of white Quartz Sandstone, calcareous. Small amount of Siltstone, poorly consol- idated, argillaceous. Trace of Clay. Trace of finely crystalline Pyrite. Trace of Glauconite. Sample mostly coarse Quartz Sand, rounded to subangular; A few Chert nodules. Some white Quartz Sandstone. Trace of a conglomeritic Sandstone, argillaceous, indurated, tight, with some finely disseminated Pyrite. Trace of brownish-grey, silty Shale. Trace of finely crystalline Pyrite~ Shale, brovm, soft, silty, grading to a Muàstone, with rare, scattered, black specks. Trace of white Sand- stone~ Trace of scattered Chert fragments, clear to frosted, semiround to subangular. Trace of rounded Chert nodules. Trace of Quartzite nodules. Trace of finely crystalline Pyrite with some octahedrons. Shale, brovmish-grey, rough texture, soft, silty. "" Trace of Chert and Quartz nodales. Trace of Sandstone, light green, fine, subar-gular, poorly sorted, well consolidated. Trace of light green,silty Shale. Trace of Chert with Calcite in minute fractures. -46- " e Cape Halkett 16N-2W e r~¡ 1510 r.~.1 . 1520 1530 r! [, rJ 1540 1560 1570 1580 Shale as above, but siltier, softer. Trace of light green, chloritic Shale. Trace of Chert noduleso As above, with an increase in silty Clay. Silty Shale as above. Trace of subtranslucent Chert pebbles. Trace of Sandstone, salt and pepper, fine, poorly sorted. Trace of finely crystalline Pyrite. Considerable loose Sand. Silty Clayo Chert and Quartz nodules. Coarse Chert and Quartz grains. Small amount of Silt. Trace of Chlorite Schist. Small amount of Clay. As above¡ Trace of conglomeritic Sandstone with finely disseminated Pyrite in the matrix. Trace of indurated Quartz Sandstone, with rarep scattered Glauconite grains and some light green, fla~J, secondary mineral. Silty Clay. Trace of Quartz and Chert nodules. L [' i 1590 Shale, bro~~ish-grey, soft, silt Yo Clay, bluish-grey, bentcni tic. Trace of coarse Chert and Quartz grains.' 1600 As aboveo In part the silty Shale has scattered, dark, carbonaceous specks and streaks. Trace of Quartz and Chert nodules. Trace of Pyrite. Trace of pyritized worm casts. 1610 As above. The silty Shale is a little better consolidated. Trace of coarse Quartz and Chert grains and nodules. Some Quartz and Chert loose Sand, fine to medium, subangular. Clay as above. 1620 As above. Trace of Sandstone, white, Quartz grains with rare scattered black Chert, fine, subangular, poorly sorted, calcareous matrix. Dark grey, bentonitic Clay. 1630 Silty, brovm Shale as above. Trace of Quartz and Chert nodules. Small amount' of Sand, fine to medium, sub- angular. Clay as above~ I [ I,' t" j" ¡ . 1640 Mainly silty brovm Shale. Clay as above 0 'I'race of Chert and Quartz nodules; 1650 As above. Some fine to coarse Sando 1660 ~As above. Reduction in the amount anà size of Chert and Quartz nodules and coarse grains. Clay as above. 1670 As above. Some coarse Sando I . -47- fJ r-J r r~ r I e Cape Halkett 16N-2W 1680 1690 1700 1710 c 1720 1730 1740 I' ¡ 1 I 1750 1760 I J f ( ( 1770 1780 1790 I I j ( 1800 e Clay 40%. Chert and Quartz nodules. As above. Reduced silty Shale. Some nodules. Increased Sand, fine to coarse, angular to subangular. Trace of Pyrite. Trace of pyritized worm casts. Clay as above. Clay as above. Some Shale, light bro~~ish-grey, silty. Loose Sand as above. A few Chert and Quartz nodules and some coarse grains. Trace of finely crystalline Pyrite. As above. Less Shale. Increased loose Sand. Some of the Chert is bro~~ish-grey, subtranslucent and some occurs as angular fragments. Clay as above. Slight increase in silty Shale. Fine to coarse Sand. Slight increase in Pyrite. Trace of pyritized worm casts. Chert and Quartz nodules. Clay as above. Trace of Shale, light brownish-grey, silty. Trace of Sandstone, salt and pepper, Quartz and Chert grains, medium to coarse, subangular, poorly sorted, well consolidated, with some Clay material in the matrix. Some Chert and Quartz nodules. Trace of Siltstone, light grey, hard, argillaceous. Clay 50%. Siltstone, light brownish-grey and Clay filled. Small amount of Pyrite. Considerable loose Silt. Reduced Sand, in part coarse, semiround to subangular. Chert and Quartz nodules. Clay as above. Siltstone, light grey, with very rare carbonaceous specks, argillaceous. Trace of sideritic Siltstone. Trace of light green Shale. Small amount of Chert and Quartz nodules. Small amount of fine to coarse Sand. Clay as above. Trace of Quartz Sandstone, clear to white, fine, ~ubangular, indurated. Trace of sideritic Siltstone. Trace of finely crystalline Pyrite. Slight increase in loose Sand. Small amount of Chert nodules. As above. Trace of sideritic Siltstone. Trace of Siderite. Trace of Siltstone, grey, argillaceous. Trace of sideritic Siltstcneo Trace of Sandstone, fine, salt and pepper, ~suban~~lar, peorly sorted, tight. Considerable loose Sand. A few nodules. Clay as above 50%. As above. Some Shale, light brownish-grey, silty. -48- [ n n I~- í [J e e Cape Halkett 16N-2W-1 1810 1820 1830 1840 l~l n ~ 1850 1860 1870 1880 I~' l' I \' I I 1890 1900 Clay 50%. Sample mostly loose Quartz Sand, fine to coarse, with e few Chert grains. Small amount of Chert and Quartz nodules and fragments. In part the Quartz has a greenish cast. Trace of light brownish-grey Siltstone. Trace of light grey Siltstone with minute carbonaceous specks. Trace of very fine Sandstone with scatttered Sericite. Trace of Sandstone with medium, clear Quartz grains in a silty, light grey matrix. Trace of finely crystalline Pyrite. Small amount of Chert nodules. Clay as above. Clay as above. Siltstone as above. Sandstone, salt and pepper, very fine, with scattered Sericite. Sandstone, clear Quartz grains, medium, subar-gular, siliceous matrix. Nodules and coarse grains of Chert and Quartz. Considerable loose Sand. Siltstone as above. In part the light grey Siltstone contains disseminated Pyriteo Trace of Pyrite. Trace of Siderite. Chert and Quartz nodules. Fine to coarse Sando Clay 50%. Clay 55%. Siltstone, light brownish-grey and light grey. Quartz and Chert Sand. fine to coarse. Nodules as above. Clay 60%. Considerable silty Shale, light grey, soft, bentonitic. Loose Silt and Sand. Small amount of nodules. Clay as above. Shale, light bro~~ish-grey, silty. Trace of finely crystalline Pyrite. Considerable loose Sand. Chert and Quartz nodules and fragments. Slight reduction in Clay. Siltstone as above, grading to a very fine Sandstone. Trace of Siderite. Chert and Quartz nodules and fragments. Loose Sand, Quartz and Chert grains, clear to frasted and black, fine to coarse. Clay as above. Siltstone, light brovmish-grey, soft. Some lighter yellowmsh-brown, better consolidated. Some nodules of Quartz and Chert. Sand as above, in part angular. Trace of light green, silty Shale. Trace of Jasper. Trace of Pyriteo Trace of Tourmaline. .Clay as aböve. Siltsto~e as above. Nodules of Chert and Quartz. Some of the Quartz ~odules are more angular. ~Trace of Siderite. Trace of Marcasite. Trace of Horne- hlende. Trace of light green Sandstone. -49- r- ,,_ Cape Halkett 1oN-2W-1 e [" U 1910 'I I j ¡: r [ 1920 1930 r~ 1940 19.50 f~ 1960 1970 Î Clay 60%. Siltstone, li~ht brownish-grey to light grey, in part very soft, argillaceous. Trace of conglomeritic Sandstone. Trace of Sandstone, Quartz and Chert grains, fine. Trace of white, calcareous Sandstone. Trace of light green, bento~itic Shale. Nodules as above. As above. Trace of light green Shale. Trace of Pyrite. Trace of pyritized worm casts. Clay and nodules as above. Trace of salt and pepper Siltstone, grey, argillaceous. Trace of bentonitic Sandstone. Trace of Calcite. Clay as above. Light grey Siltstone grading to a very fine Sandstone, salt and pepper, Quartz and Chert with rare Glauconite grains. Trace of white, calcareous Sandstone. Trace of Pyrite. Some Chert and Quartz nodules. Considerable fine to coarse Sand. Clay as above. Trace of clear Sandstone, in part with a greenish tinge. Silt and fine to medium Sando Trace of Chert and Quartz nodules. Slight decreas~:in Clay content. Siltstone as above. Trace of light green Shale. Considerable loose Silt and Sand. A few Chert and Quartz nodules. As above. Increase in Silt. 1980 Post trip sample. Clay 50%. Siltstone, light grey, argillaceous, with rare minute, black, carbonaceous specks. Some light brown Silt. Trace of 'Chert and Quartz nodules. 1990 Siltstone as above. Trace of white, very fine, calcareous Sandstone. Trace of light green, chloritic Siltstone. A few nodules. Clay as above. ~ II ¡ l' f { II 2000 As above. Trace of pyritic worm casts. 2010 Clay as above. Siltstone, light grey, blocky, shaly, with scattered dark specks. Trace of sideritic Siltstone. Trace of silty mudstone. Trace of finely crystalline Pyrite. Considerable loose Sand and Silt. Chert and Quartz nodules and fragments. 2020 Clay as above. Siltstone as above. Trace of very fine, calcareous Sandstone. Trace of Siderite. Trace of finely crystalline Pyrite and pyritized worm casts. ~ Nodules of Chert and Quartz as above. -50- e Cape Halkett 16N-2W-1 e n ~ l r I 2030 2040 n 2050 l l Î 2060 2070 2080 2090 l 2100 I t 2110 Reduced Clay. Sandstone, light grey, salt and pepper, Quartz and Chert with rare Glauconite and Siderite grains, fine, subangular, fairly well sorted, well consolidated with a siliceous matrix, tight. In p~rt the Sandstone contains Sericite flakes and in part rare Phlogopite. Siltstone, light bro~~ish-grey as above. Trace of Sandstone, white, Quartz grains, fine, subangular, poorly sorted, well consolidated with a calcareous matrix. Some Chert and Qyartz nodules. Sandstone as above, in part quite sideritic, in part containing Sericite and Phlogopite with a trace of Glauconite grains. Small amount of white, calcareous Sandstone. Small amount of light bro~~ish-grey, argillaceous Siltstone. Zrace of sideritic Silt- stone. Reduced Chert and Quartz nodules. Some loose Sand and Silt. Flood of Sandstone, light grey, salt and pepper, Quartz and Chert with very rare Siderite grains, fine, subangular, poorly sorted, well consolidated, with mainly a siliceous matrix but in part slightly calcareous, argillaceous, tight, no shows. In part the Sandstone has small lignitic streaks. Trace of Siltstone and light, calcareous Sandstone. Reduced Clay. Tight, hard Sandstone as above. Salt and pepper Sandstone as above, with a trace of Siderite. Some Lignite inclusions. A few patches of slightly friable Sandstone. Considerable reduction in Clay. Sandstone as above. Trace of grey, argillaceous Silt- stone. Trace of sideritic Siltstone. Trace of grey Shale, with a slightly brovmish tinge, rough texture, irregular fracture, relatively soft. Some loose Sand and Silt. A small amount of Clay. Reduced Sandstone as above, 35%. Shale, li~gt brownish- grey, smooth texture,' bentonitic, 40%. Siltstone, light brownish-grey, bentonitic. Reduced loose Sand. Sandstone as above, salt and pepper, fine to medium, fairly well sorted. Siltstone, light bro~~ish-grey, bentonitic, 25%. Trace of Shale as above. Trace of Shale, dark grey, smooth texture, blocky. ~Shale, light grey and light bro~nish-grey, bentonitic, 40%. Siltstone, light brownish-grey, bentonitic, 35%. Sandstone as above, in general finer, softer. -51- f' lJ [1 [J r~'1 lJ Cape Halkett ~-2W-1 e 2120 21JO 2140 2150 2160 -1 L [1 W 2170 2180 2190 I·' l t· l l I' 2200 2205 2210 Shale as above, light brown, soft, blockyp 45%. Siltstone, light brownish-grey, with rare scattered black specks, 35%0 Sandstone as above, salt and pepper, fine, tight. As above. The Siltstone contains a few carbonaceous streaks and speckso The Sandstone is slightly friable in part and the matrix is slightly calcareous. Some loose Sand, fine to coarse, subangular. Slight increase in Clay, probably occurring in thin beds. Shale, Siltstone and Sandstone as above (45-30-25). Trace of chlcritic Shale and Siltstone. Trace of finely crystalline Pyrite. Trace of Marcasite. Increased Sandstone, 35%, in part finer, indurated. The matrix is more calcareouso Trace of Siderite and Sericite in the Sandstone. Shale and Siltstone as aboveo The Shale is more compacted. Sandstone as above, in part slightly friable, 40%. Rare inclusions of coarse, clear, rounded Quartz grains in the finer Sandstone. Siltstone, light brownish-grey, with rare, black specks. Shale as above. Some loose Sand. Sandstone as above, with rare, scattered Siderite grains, 40%. Shale, brownish-grey to grey, blocky, bentonitic, soft. Small amount of Siltstone as above. Sandstone as above, in part slightly friable, with rare patches of kaolinitic infilling, 85%. Shale as above, soft, bentonitic. Small amount of Siltstone. Trace of finely crystallin~ Pyrite. Sandstone as above. Trace of Shale as above. Trace of light green, chloritic Shale. Trace of sideritic Silt- stone. Trace of dolomitic Ironstone. Some loose Sand. Sandstone as above, calcareous matrixQ Trace of sideritic Siltstone. Trace of Shale, grey, with a greenish casto Trace of light green Shale. Trace of finely crystalline Pyrite. Sandstone as above but more calcareous. Some larger, rounded Quartz grains and some larger, subangular Chert grains in' the Sandstone. The Sandstone is more friable. Trace of Lignite. Trace of bentonitic Shale. Sandstone as above, calcareous matrix. Trace of sideritic ""'Siltstone. -52 - ¡ rl n n n o Cape Halkett 1~-2W-1 e 2220 2230 2240 2250 2260 -l l. 2270 2280 I 2290 2300 2310 2320 t ~ l' C ~ ¡ 2330 6 2340 2350 Sandstone as above. Patches of kaolinitic infilling in the matrix. Trace of sideritic Siltstone. Trace of Lignite. Sandstone as above, but more friable. Trace of sideritic Siltst0ne. Trace of Lignite. Considerable loose Sand. Increased Clay in the sample. Sample is 60% Clay. Sandstone as above but more Doorlv consolidated. Trace of bentonitic Shale. Trace of v Lignite. Clay 60%. Sandstone as above,- salt and pepper, Quartz and Chert grains with scattered Siderite and weathered Glauconite grains, fine, sub angular, poorly sorted, poorly consolidated with a calcareous matrix, friable, no visible porosity, no shows. Trace of sideritic Siltstone. Some loose Sand. Clay as above. Poorly consolidated Sandstone and loose Sand. Trace of light grey, argillaceous Siltstoneo Sample 80% Clay. Poorly consolidated Sandstone and loose Sand. Trace of bentonitic Shale. Trace of Siderite. Clay 90%. Sandstone, poorly consolidated, with a slight increase in Siderite grains. Trace of Siltstone. Trace of light grey, bentonitic Shale. Mostly Clay. As above. Clay 90%. Clay 90%. Small amount of Sandstone. Trace of Siltstone. Some loose Samd. B~uish-grey, bentonitic Clay. Sandstone as above but better consolidated, 5%. Contains some Sericite, rare larger Chert grains and rare, weathered Glauconite grains. Trace of light bro~~ Siltstone. Some Quartz and Chert Sand, fine to coarse, subangular. Clay as above. Salt and pepper Sandstone. Trace of Sandstone, white, Quartz grains, dense, hard, calcareous. Trace of Shale, grey to bro~~ish-grey, bentonitic. Trace of Siltstone, light bro~~ish-grey to grey, argillaceous. Trace of light green Shale, in part slightly silty. As above. ~ Post trip sample. Clay, bluish-grey, bentonitic, 85%. Sanèstone, salt and pepper, Quartz and Chert grains with scattered Siderite, calcareous. Small amount of Siltstone, light grey and light brownish-grey. Trace of Shale, light bro~TI, bentonitic, soft. -53- 1- r r r· Cape Halkett ~-2W-1 e 2360 2370 2380 r' I c 2390 2400 2410 i 2420 2430 2440 [" [ lJ l ¡ .2450 2460 2470 Decrease in Clay, 75%. Sandstone as above, in part with some Lignite inclusions, well consolidated, 20%. Small amount of Siltstone. Trace of fine to coarse Sandstone. Trece of bentonitic Shale. No recoveryo Less Clay, 50~. Sandstone, salt and pepper, Quartz and Chert with very rare Siderite grains, fine, subangglar, poorly sorted, well consolidated, calcareous matrix, in part with so~e keolinitic infilling, tight. Trace of Shale, dark grey, smooth, texture, blocky to platy. Trace of Shele, bro~~ish-grey, soft, bentonitic. Some loose Sand. Trace of sideritic Siltstone. Trace of Lignite. Sligtrt reddction in Clay. Sandstone as above, but fine to medium, poorly sorted, more friable. Small amount pf Shale as aboveo Small amount of loose Sand. Clay as above, 45%. Siltstone, liggt grey and light brownish-grey, with scattered dark, carbonaceous specks, 40%. Trace of Shale, grey and brownish-grey, bentonitic. Sandstone as above. Small amount of loose Sand. Clay as above. Siltstone, 30%. Shale as aboveo Small amount of Sandstone as above. Trace of loose Silt and Sand. SET 1ó" CAS n:G AT 2410 f K. B. Mostly Cement cuttings. Cement cuttings. Trace of black, semiround Chert nodules. Trace of Sandstone, salt and pepper, very fine, subangularo Trace of volcanic Tuff. Cement cavings. Chert as above. Trace of Tuff, red, very hard, very fine grained, with angular fragments of frosted Quartz and minor Feldspars. Trace of Sandstone, li[ht grey, salt and pepper, with very rare Siderite grains. Trac~ of Marcasite. Trace of lignitic Coal. As above. Mostly Cement. Trace of Coal. Trace of volcanic Tuff. Trace of Chert nodules. Clay, bluish-grey, bentonitic, 50%. Cement cuttings ..50%. Trace of Tuff 0 Trace of Quartz and Chert fragments 0 ~Clay, 60%. Ce~ento Trace of Tuff, red and dark grey. Trace of anguler, s~oky Chert fragments. Trace of rounded Chert nodules. Trace of Coal. -54- Cape Halkett 11t-2W-1 e r- r r \ r 2480 2490 2500 251Q 2520 2530 2560 r 2580 2590 i 2600 2610 2620 II 1.1 II t' l' I J 2640 2690 2680 Clay, 60%. Cement cuttings. Trace of Tuff as above. Trace of angular, smoky Chert fragments. Small amount of grey, argillaceous Siltstone, with scattered carbonaceous specks. As above. Slight decrease in Cemento Increased Silt- stone, 15%. Trace of Tuff. Trace of Chert fragments 0 Clay, 55%. Cement cavingso Siltstone, Tuff, Chert fragments as above. Some loose Sand. As above. Clay, 75%. Cement cavings. Clay, 80%. Trace of Tuff. Trace of Chert fragments. Trace of Siltstone. Clay, 80%. Cement cuttings, 1010. Siltstone, 10%. ~race of fine, subangular, Quartz and Chert Sand. Clay, 80%. Trace of Siltstone, in part lighter grey, less argillaceous. Trace of Chert nodules. Trace of fine to medium Sand. As above. Trace of Coal. Clay, 85%. Sandstone, salt and pepper, Quartz and Chert with scattered Siderite grains, fine to medium, poorly sorted, poorly consolidated. Considerable loose Sand. Reduced Cement, 10%. Clay, 85%. Siltstone, 10%. Trace of Sandstone and loose Sand, 25%0 Some white Bentonite. Reduced Cement. Clay, 85%. Reduced Siltstone. Small amount of Bentonite. Reduced Cement. Clay, 85%. Siltstone as above. Small amount of Bentonite. Quartz and Chert Sand, very fine to coarse. Trace of Calcite. Clay, 80%. Trace of Siltstone. Small amount of Bentonite. Trace of Calcite. Sample mostly loose Sand. As above. Clay, 85%. Cement cavings, 10%. Clay as above. Siltstone, Bentonite and loose Sand. Trace of Coal. Trace of rounded, coarse Quartz grains. still 5% Cement. 2700 Clav, 85%. Siltstone, lighfu grey to grey, soft, argill- ~ v . accous. Trace of Sandstone, salt End pepper, very flne, sutangular, ~'ell sorted, calcareous matrix. Trace of Bentonite. Trace of Coal. Some loose Sand. -55- l~ r I l r· [ Cape Halkett 1.2W-1 e 2720 2740 2760 2780 2800 2820 r~ 2840 2860 w 2S80 2900 2920 ¡J II l.. t I t' 2940 2960 2980 3000 I L II Clay, bluish-grey, firm, bentonitic, 85%. Siltstone, grey, soft, argillaceous. Trace of very fine, salt and pepper Sandstone, sudangular~ well so~ted, calcareous matrix. Trace of Bentonite. Trace of Coal. Some loose Sand. Clay, 80%. Siltstone as above, grading into a fine Sandstone. Trace of Bentonite. Trace of Coal. Some fine to medium Sand. Clay, 80%. Soft Siltstone. Trace of Sandstone. Loose Sand. Trace of Cement. Mostly Clay. Clay, 95%. Trace of Chert nodules. Trace of Coal. Trace of Calcite. Trace of Bentonite. Loose Sand. Clay, 95%. Small amount of Sandstone, very fine to fine, salt and pepper, Quartz and Chert grains, sub- angular, well sorted, calcareous matrix. Trace of Chert nodules. Trace of Coal. As above. Clay, 90%. Small amount of Siltstone, in part with scattered carbonaceous specks. Trace of Coal. Trace of Bentonite. Some loose Sand. As above. Clay, 80%. Siltstone, grey, argillaceous, with fewer carbonaceous specks and streaks. Trace of Coal. Trace of Bentonite. Clay, 80%. Siltstone as above, grading to a fine Sand- stone, with some carbonaceous specks. Trace of Coal. Trace of Bentonite. Trace of light green Shale. Siltstone. 30%. Sandstone. poorly sorted, calca;eous. 10%. Trace of Coal. Trace of Bentonite. Trace of Calcite. SliEht increase in Siltstone. Sandstone as aoeve. Some volcanic Tuff. Slight increase in Calcite. Very little sample coming over. Reduced Clay, 40%. Si1tstone, frey, soft, argillaceous. Trace of Coal. .Trace of Bentcnite. Trace of Tuff, red, hard. Some fine Silt. "" Reduced Clay, 30%. Siltstone as above. Small a~ount of Bentonite. Some Chert fragments. Trace of Coal. Considerable loose Silt and Sand. -56- 11 rl [l II Cape Halkett 1~-2W-1 e 3020 3040 ¡ì L I 3060 n 3080 3100 3120 ¡~' l W 3140 3160 J180 )200 )240 L ¡ I J 1 ! . 3260 3280 3300 3320 3340 ¡ I Clay, 20%. Siltstone as above, very argillaceous. Small amount of Bentonite. Slight increase in Coal. Considerable Silt, grading to a fine Sand. Clay, 10%. Siltstone grading to a poorly consolidated Sandstone. Trace of Calcite. Trace of Chert. Trace of Tuff. INCREASED MUD VOLUrflE Increased Clay. Siltstone as above. Trace of white, Quartz Siltstone. Trace of chloritic Shale. Increased Clay. Siltstone as above, grey, argillaceous. Trace of Bentonite. Trace of Coal. Trace of Pyrite. Clay, hO%. Siltstone as above, grading to a fine, salt and pepper Sandstone. Trace of Bentonite. Trace of Calcite. Trace of Coal. Clay, 60%. Siltstone as above. Sample mainly Clay. Clay, 50%. Siltstone as above, grey, argillaceous, soft. Trace of salt and pepper Sandstoneo Trace of white, Quartz Sandstone. Trace of Bentonite. Some loose Silt and loose Sand. Clay, 40%. Siltstone. Trace of Calciteo Trace of Bent- onite. Loose Silt and Sando Clay, 70%. Siltstone 30%. Trace of dark, silty Shale. Trace of Calcite. Trace of Pyrite. Clay, 40%. Siltstone as above, with scattered, carbon- aceous süecks. Trace of white Quartz Sandstone. Trace of Chert. Trace of Calcite. Cla~T, 30%. Siltstone, poorly consolidated. Increased Bentonite. Clay, bluish-grey, bentonitic, 60~. Siltstone, 40%. Trace of Eentonite. Loose Silt and Sand.. Clay, 50%. Siltstone. Trace of Shale, grey, smooth texture, platy. Trace of Bentonite. Trace of Calcite. Loose Sand. "'I - ~Oð ~ . 1.J... t v a;J, _' ~o. ....~ I"S one. ~and Sand, subangular. Trace of Calcite. Loose Silt Clay, 80~. Siltstone. Increased Calcite. Silt and Sand. -57- ìl - Cape Halkett 16N-2W-1 e r~1 r~\ 3360 3380 II [J 3400 3420 td l' I 3440 3460 3480 [' 1 1 J r 3500 3510 3520 Clay, 60%. Siltstone ~s above. Small amount of Sandstone, Quartz and Chert with rare Sericite, fine, sub angular , well sorted, well consolidated, calcareous matrix, tight. Trace of Sandstone, mainly Chert graihs, coarse, semi- round, well sorted, in a silty matrix, tight. Trace of Calcite. Trace of finely crystalline Pyrite. Loose Silt and Sand. Clay, 50%. Siltstone as above. Trace of salt and pepper Sandstone. Increased Calcite. Increased Bentonite. Loose Silt and Sand. Fines are subangular and should be quite abrasive. Clay, 40%. Siltstone, grey, with thin streaks of lignitic material. Trace of Sandstone as above, very fine to fine. Small amount of Calcite. Trace of light yellowish-brown Siltstone. Clay, 30%. Siltstone, grey to brownish-grey, soft, argillaceous. Trace of Sandstone, with scattered Siderite grains, calcareous. Trace of light grey, salt and pepper Siltstone, with some kaolinitic infilling. Trace of Calcite. Trace of Bentonite. Trace of finely crystalline Pyrite. Cement cavings, 20%. Siltstone as above. Trace of Siderite, trace of sideritic Siltstone, trace of sideritic Sandstone. Considerable Calcite. Trace of Bentonite. Some Silt and Sand. Clay, 20%. Siltstone, light grey to grey, argillaceous and sideritic Siltstone. Slight increase in Sandstone, in part containing Sericite. Trace of Shale, light grey, blocky, bentonitiq. Trace of Bentonite. Trace of Calcite. Clay, 10%. Siltstone, light grey to grey, soft, argillaceous, in part with scattered carbonaceous specks. Trace of light grey, ~entonitic Shale. Increased Bentonite. Small amount of Calcite. Trace of Pyrite. Clay, 10%~ Siltstone, light grey to grey, soft to firm, argillaceous. Trace of very fine Sandstone. Trace of bentonitic Shale. Small amount of Bentonite. Trace of Calcite. Reduced Clay. Siltstone as above. Trace of fine Sand- stone. Small amount of Chert. Trace of Calcite. Ijo retu.rns. -58- 11 [j n n t1 n Cape Halkett 1~2W-1 e 3530 3540 3550 3560 3570 3580 r f' i 3590 3600 3610 3620 [I '( ( t' 3630 3640 3650 ~ I' Siltstone as above, light grey to grey, soft, argillaceous. Small amount of Shale, light grey to grey, in part bentonitic. Trace of very fine Sandstone. Small amount of Bentonite. Trace of Calcite. Siltstone as above, in part with rare, scattered, carbonaceous specks. Trace of Sandstone, Shale, Bentonite and Calcite as above. Siltstone as above, bro~~ish-grey to grey. Slight increase in fine Sandstone, salt and pepper, subangular, calcareous. Trace of Shale as above. Trace of Calcite. Loose Silt and Sand. Siltstone as above, poorly consolidated. Trace of Sand- stone. Trace of finely crystalline Pyrite. Trace of Calcite. Trace of Coal. Loose Silt a~à Sand. Poor sample. Shaker box being cleaned. Appears as above. Increased Bentonite. Small amount of Silt and Sand. Siltstone, light grey to grey, firm, argillaceous, with rare carbonaceous specks. Trace of very fine Sandstone. Small amount of Calcite. Silt and Sand as above. Siltstone as above, in part laminated. Trace of Sand- stone, with rare Siderite grains, occurring as thin lenses in the Siltstone. The Sandstone is calcareous but the Siltstone is not. Trace of Calcite. Trace of Bentonite. Loose Silt and Sand. Siltstone as above. Trace of fine Sandstone. Trace of Calcite. Siltstone as above. Trace of sideritic Siltstone. Trace of Shale, soft, silty. Trace of Calcite. Some Silt and Sand. Siltstone as above, in part with some lighitic inclusions. Trace of fine Sandstone. Trace of Shale as above. Trace of Calcite. Small amount of Silt and Sand. Siltstone as above. Trace of fine, salt and pepper Sand- stone. Trace of Shale, soft, silty, bentonitic. Trace of Calcite. Trace of Bentonite. Trace of Coal. Siltstone as above, more bro\~ish-grey, in part sandy. Reduced Sandstone. Trace of Shale. Trace of Eentonite. Trace of Calcite. Siltstone as above, in p~rt brom1ish-grey and laminated. T~ace of fine, silty Sandstone. Trace of soft, silty Shale. Trace of Bentonite. Trace of Coal. -59 - f" r' Ie Cape Halkett 16~2W-1 e 3660 .3670 Ie' [ .3680 .3690 3700 \' .3710 3720 Î 3730 3740 3750 [J 3760 l) 3770 L~ 3780 l~ 3790 r I ' Siltstone. light grey to grey and bro~~ish-grey, argillaceous, soft to firm. Increased fine, salt pepper Sandstone. Increase in Calcite. Trace of Bentonite. and Siltstone as above, with fine lignitic inclusions, in part sandy. Slight increase in fine Sandstone. Trace of Shale as above. Trace of Þ,'Iarcasi te. Trace of Calcite. Some loose Silt and Sando Siltstone as above. Increased Sandstone, poorly consolidated. Trace of Calcite. Increased Bentonite. Traoe of Pyrite. Loose Silt ~nd Sand. Silt£to~e as above, in part laminated with lignitic inclusions. S~all amount of Sandstone, salt and pepper, fine, in part sideritic. Small amount of Bentonite. Small amount of Shale. Trace of Calcite. As above. Increased Shale, light grey to grey, in part bentonitic, in part silty. Trace of sideritic Siltstone. Siltstone as above, in general lighter grey in colour. Trace of Sandstone. Slight increase in Shale. Trace of Bentonite. Trace of Calcite. Silt and Sand as above. As above. Clay 10%. Increased Sandstone, salt and pepper, very fine to fine, 15%. Trace of Siderite. As above. Clay 10%. Trace of subangular Chert fragments. Clay, 30%. Siltstone, grey to bro~~ish-grey, argillaceous, in part sandy. Small amount of fine, tight, salt and pepper Sandstone. Small amount of Shale, in part silty, in part bentonitic. Trace of Bentonite. Trace of Calcite. Trace of lignitic Coal. Siltstone as above, in general sandier. Shale as above. Sandstone as above. Trace of Calcite. Trace of Siderite. Silt and Sand as above. As above. Siltstone is sandy in part. Trace of Calcite. Trace of Silt and Sand. Siltstone, Shale and Sandstone as above. Trace of Siderite. Trace of finely crystalline Pyrite. As above. Increased Sandstone. Increased Calcite. Trace of Aragonite. Traoe of Pyrite. Trace of Siderite. ~oorly consolidated Sil~stone. Minor Sandstone. Traceof Shale. Trace of ~alcite. Trace of Eentonite. Clay, 30%. -60- T~ r¡ n \:1 ¡1 lJ e e Cape Halkett 16N-2W-1 3800 3810 3820 38)0 3840 3850 3860 (1 ¡ I I 3870 .3880 3890 ¡ [' I L I L I \ 3900 3910 3920 3930 I ! { Siltstone as above. Trace of fine, poorly cosolidated Sandstor.e. Trace of Limestone, dark brown, crypto- crystalline,argiIJaceous. Clay, 10%. Trace of Calcite. Trace of Shale. As above. Trace of Ligniteo Trace of Pyrite. Clay, 10% As above. Trace of lignitic Coal. Poorly consolidated Siltstone. Trace of calcareous Sandstone. Trace of Siderite. Trace of Coal. Clay, 30%. Clay, 20%. Siltstone, light grey to grey, with some bro~~ish-grey. Trace of Sandstone. Trace of Siderite. Trace of Calcite. Trace of Coal. Some Silt and some Sand. Clay, 10%. Siltstone as above, argillaceous. Trace of Shale, in part silty. Trace of Bentonite. Trace of Coal. Clay, 20%. Siltstone as above, in part laminated with lignitic streaks. Slight increase in Sandstone, salt and pepper, fine, subangular, calcareouso Trace of Siderite. Trace of Calcite. Trace of Shale. Trace of Bentonite. Clay, 10%. Siltstone as above, in part sandy. Increased Sandstone, salt and pepper, calcareous. Shale, light grey to grey, in part bentonitic, in part silty. Trace of Siderite. Trace of Calcite. As ?bove. TRIPPED AT 3939' Post trip sample. Siltstone, grey, soft, with rare, scattered carbonaceous specks. Small amount of Sandstone, salt and pepper, fine, subangular, well sorted, well consolidated, calcareous. Trace of silty, grey Shale. Trace of Bentonite. Trace of Calcite. Trace of Inoceramus prisms. As above. Trace of Siderite. Trace of Coal. Increased silty Shale. Increased Bentonite. Trace of Siderite. Siltstone, witr. increased carbonaceous specks. Trace of Sandstone as sboveo Bentonite, 5%. Trace of Calcite. ~lay, 10%. Very little sample coming over. SiltstoDe as above, in part la.minated, with some lignitic partir..gs. Small amount of silty grey Shale. Reduced Bentonite. Trace of Bentonite. Trace of loose Silt and Sand. -61- l: Cape Halkett 1~2W-1 e [~I f~'\ LI fl ['1 ¡] 3940 3950 3960 .3970 3980 I ' r' W 3990 4000 4010 4020 ¡ \~ t~ 4010 . ~ 4040 4050 L ¡' 4060 Siltstone as above, some with pyritic banding. Increase in Sandstone, 10%. Trace of Shale. Trace of Eentonite. Siltstone as above. Sandstone, calcareous, 10%. Tr~ee of Shale. Small amount of Bentonite. Increased Calcite, 3%. Siltstone as above. Some Siltstone containing bentonitic material. Sanãstone as above, 15%. Trace of Shale. Small amount of Bentonite. Trace of Calcite. Trace of Siderite and sideritic Siltstone. Trace of Pyrite. Siltstone as above, in part sandy. Sandstone, salt and pepper, fine, subangular, well sorted, well consolidated, calcareous matrix, 40%. Trace of Shale. Small amount of Siderite and sideritic Siltstone. Trace of Pvrite. Trace of Aragonite. Trace of rounded Quartz grains: Trace of pyritized worm casts. Trace of Inoceramus prisms. Reduction in Sandstone, 30%. Siltstone as above. ~mall amount of Shale, in part silty. Trace of Pyrite. Trace of pyritized wood. Reduced Sandstone, 20%. Small amount of Siderite. Shale as above, 5%. Trace of Calcite. Trace of pyritized worm casts. Small amount of Silt and Sand. Siltstone as above. Sandstone, 20%. Increased Shale, in part bentcnitic, in part silty. Small amount of Siderite. Trace of Pyrite. Siltstone as above. Sandstone, 5%. Small amount of Shaleo Trace of Calcite. Trace of Lignite. Trace of Siderite. Trace of Pyrite. Trace of pyritized wood. Increased Sandstone, .35%. Siltstone as above, in part with carbonaceous specks, argillaceous. Trace of Shale. Trace of Siderité. Trace of Calcite. Trace of Bentonite. Siltstone, grey to brownish-grey, argillaceous, in part with carbonaceous specks. Sandstone as above, 10%. Small amount of silty Shale. Trace of Siderite. Trace of finely crystalline Pyrite. Siltstone as above. Small amount of Sandstone. Trace of Shale. Increased Bentonite. Trace of Calcite. Siltstone as above. Slight incr~ase in Sandstone, 5%. Trace of Phlo~opite in the Sandstone. Shale as above, ~n part silty; 10%. Slight increase in Calcite. Siltstone, in part brownish-grey, soft, very argillaceous, in part grey, sandy. Sandstone as above, 10%. Small amount of Shale. Trace of Calcite. Trace of Pyrite. -62- r' r r r Cape Hálkett 16~W-1 e 4070 4080 î I 4090 c 4100 4110 4120 11 4130 I 4140 4150 f L 4~60 I I L I L I t I ~ 4170 4180 4190 I { I ~ I Siltstone as above, mainly grey, argillaceous, more sandy. Reduced Sandstone, 5%. Reduced Shale, Slight increase in Siderite. Trace of Calcite. Trace of Coal. Trace of Pyrite and pyritized worm casts. As above. Small amount 0: Sandstone. Trace of Shale. Increased Calcite, 3%. Trace of Siderite. Trace of sideritic Siltstone. Trace of Pyrite cubes. Siltstone as above. Sandstone, 10%. Trace of Shale. Trace of Calcite. Trace of Pyrite. Trace of Bentonite. Trace of Siderite. As above. Slight reduction in Sandstone. Siltstone as above, mostly grey to dark grey, argill- aceous. Slight increase in Sandstone. Shale, grey and bro~~ish-grey, bentonitic, soft, in part silt.y, 5%. Small amount of Siderite and sideritic Siltstone. Trace of Calcite. Trace of Bentonite. Siltstone as above, in general harder. Small amount of salt and pepper Sandstone. Trace of Shale, grey, bentonitic. Trace of Calcite. Trace of Bentonite. Trace of pyritized worm casts. Trace of Siderite. Siltstone as above, in gneral more sandy. Some Bentonite beds in the Siltstone. Increased Sandstone, 20%. Trace of Shale. Træce of Calcite. Increased Pyrite and pyritized worm casts. Siltstone as above. Sandstone, 10%. Trac~ of silty Shale. S~~ll amount of Siderite. Trace of Calci~e. !rac2 of Lignite. Siltstone as above, more sandy. Sandstone, 5%. Trace of Shale. Trace of Calcite. Trace of Siderite. Trace of Ii'Iarcasi te. Siltsto~e as above. S~all amount of Sandstone. Trace of Shale, in part in thin bands in the Sil~stone. Small amount of Siderite. Trace of Pyrite. Trace of ~arcasite. Siltstone as above, in part very argillaceous. Increased Sandstone, 10%. SmalJ. ar::.our:t of Calcite, Sm2.l1 amount of Siderite. Siltstone, grey, argillaceous, with scattered carbon- aceous sped.s. Reduced Sandstol"'.e. Sr::all ar::cunt of grey . t'] m ~ -- - ..... - r;'O n Shale, ~n p2.r Sl _ty. LTRce O.i ,':).lc:.erl i.-~ .J·race 01 ~Calcite. Trace of Pyrite. Siltstcne as above, in part more arEillaceous. Slight increase in Sandstone. Trace of~hale. Traces of Siderite, CalciT.e, Pyrite and pyritized worm casts. -63 - fl n Cape Halkett 1~2W-l 4200 n 4210 ¡ 4220 r ¡ 1 l~! 42)0 4240 . 4250 rJ I tJ I 4260 4270 4280 4290 I I~ I L I t 4)00 4)10 e Sandstone, salt and pepper, Quartz and Chert grains, Ilne. subangular, well sorted, well consolidated, calcareous matrix, 50%. Siltstone as above. Trace of Calcite. Trace of Siderite. As abfuve. Trace of Calcite. Siltstone, brownish-grey, with lignitic laminae, 10%. Siltstone, grey, salt and pepper, grading to ~ fine Sandstone, subangular, calcareous. Trace of Siderite. Trace of Calcite. Trace of Pyrite. Trace of Bentonite. Siltstone as above. Sandstone, 5%. Trace of silty Shale. Trace of Calcite. Trace of Siderite and sideritic Siltstone. Clay, )0%. Siltst0ne as above. Sandstone, 20%. Trace of silT.y Shale. Trace of Siderite. Trace of Calcite. Trace of Coal. Clay, 10%. As above. Increased Sandstone, 25%. Trace of Siderite. Trace of Calcite. Trace of Coal. Siltstone, salt and pepper, less argillaceous. Sandstone, very fine to fine, subangular, calcarecus, 40%. Small amount of Siderite. Trace of Calcite. Increased Siltstone, in part laminated, 10%. Sandstone. Trace of Siderite. Trace of Calcite. Trace of Lignite. Trace of Marcasite. Siltstone, mostly brovmish-grey, argillaceous. Sand- stone, salt and pepper, Quartz and Chert, fine, sub- angular, well sorted, calcareous, 20%. Trace of Shale. Trace of brecciated Tuff, probably from above. Trace of Sand. Trace of Calcite. Siltstone as above. Trace of Sandstone. Trace o~ silty Shale. Trace of Siderite. Trace of Calcite. Trace of finely crystalline Pyrite. Trace of Marcasite. Clay, 40%. Siltstone as above, with carbonaceous specks, less sandy. Sandstone, 10%. Trace of Siderite. Trace of Calcite. Cl ~O~ S·l~· d m f ~ ' t ay, J~' 1 ~s~one, more san y. rrace 0 ~anQS one. Trace of Shale, blocky. Trace of Calcite. Trace of Siderite. 4)20 Clay, 20%. Siltstone, in part brm·mish-grp.y and ~ argillaceous, in part cleaner and sandy. Trace of Sand- stone. Trace of Calcite. Trace of Coal. ~race of Siderite. ,I 1.. II i. I I -64- f n n n n o cape Halkett 16~W-1 e 4330 4J40 4350 4]60 4J70 4J80 n d I 4390 4406 4410 4420 [~ 4~30 4440 I tl 4450 ~ lJ [I d 4460 4470 I I i Clay, 40%. Siltstone, grey, argillaceous, with some carbonaceous specks. Trace of Sandstone. Trace of Siderite. Trace of Calcite. Trace of Coal. Clay, 40%. Siltstone, grey, argillaceous, with so~e carbonaceous s?ecks. Trace of Sandstone. Trace of Siderite. Trace of Calcit~. Clay, 30%. Siltstone as above, sandy. Trace of Sar.dstone. Trace of Siderite and Sideritic Siltstone. Trace of Calcite. Trace of Coal. Clay, 50%. Siltstone as above, mostly sandy. Sandstone 10%. Trace of Shale, grey, rough texture, platy. Trace of Calcite. Trace of Coal. Clay, 20%.Sil~stone, sandy. Sandstone, 10%. Trace of Calcite. Trace of Siderite. Þ~inly sandy Siltstone. Trace of Sandstone. Trace of Calcite. Trace of Aragonite. Trace of sideritic Silt- stone. Clay, 30%. As above, but more àandy. Trace of Coal. Siltstone as above, sandy. Trace of Sandstone. Trace of Siderite. Trace of Lignite. Trace of light grey, bentonitic Shale. Trace of Calcite. Siltstone as above, grey, argillaceous, sandy. Trace of Sandstone. Trace of Bentonite. Trace of Calcite. Trace of Aragonite. Trace of Siderite. Clay, 30%. Siltstone as above, but softer, less well consolidated, more argillaceous. Trace of Sandstone. Trace of Calcite. Trace of Siderite. Some loose Silt and Sand. Siltstone as above and a trace of Sandstone. Siltstone as ~bove. Trace of Sandsto~e. Trace of Pyrite. Trace of Coal. Trace of Calcite. Siltstone as above, more argillaceous, with some carbonaceous specks. Trace of Sandstone. Trace of sideritic Siltstone. Trace of Calcite. Trace of Lignite. Siltstone, grey to dark grey and Siltstone, light bro~mish-grey. TraCE of Sandstone. Trace of sièeritic Siltstone. Trace of Calcite. Trace of Lignite. ~iltstone as above, in part more argillaceous, with some carbonaceous and some lienitic streaks and specks. Sandstcne ~s above, 20%. Slight increase in Side~ite. Trace of Calcite. Clay. 30%. -65- e Cape Halkett 16N-2W-1 e 4480 Siltstone as above. Small amount of Shale, grey, in part silty. Sandstone, 10%. Traces of Siderite, Licnite and Calcite. Clay, 30%. [ 4490 1~ostly Siltstone, in part sandy. Trace of Calcite. Trace of Siderite. Clay, 40%. 4<00 ./ [I [l 4510 4520 4530 [ 1 4540 Î 4550 4560 4570 c I · l l" L" 4580 4590 4600 ¡ I I Siltstone, brownish-grey to grey, very argillaceous, lignitic. Trace of sideritic Siltstone. Trace of Calcite. Trace of Limestone, bro~TI, cryptocrystlline, finely brecciated and recemented, argillaceous, with some Calcite between frgments. Siltstone. Trace of Sandstone. Small amount of Shale, grey, bentonitic. Trace of Calcite. Trace of Pyrite. Trace of Lignite. Siltstone as above, sandy, grading to a fine, salt and pepper Sandstone. Trace of Calcite. Trace of Lignite. Trace of sideritic Siltstone. Siltstone as above, argillaceous, with scattered, carbonaceous streaks and specks. Trace of Sandstone, in part with rare Siderite grains. Trace of silty Shale. Trace of Bentonite. Trace of Calcite. Clay, 30~. Siltstone as above. Trace of Sandstone. Trace of Shale. Trace of Siderite. Trace of Calcite. Siltstone as above, more argillaceous, with lignitic inclusions. Trace of Shale. Trace of Siderite. Trace of Calcite. Trace of Lignite. Trace of pyritized wood. Siltstone as above. Trace of Sandstone. Small amount of silty Shale. Trace of Pyrite. Trace of Calcite. Trace of Lignite. Trace of sideritic Siltstone. Siltstone as above. Trace of Sandstone. Small amount of silty Shale. Trace of Pyrite. Trace of Calcite. Trace of Lignite. Trace of pyritized worm casts. Siltstone as above. Sàndstone, 10%. Trace of silty Shale.o Trace of Calcite. Trace of Siderite. Trace of Coal. Trace of Bentonite. . Siltstone as above, but harder and sandier. Sandstone, 10~. Trace of Shale. Trace of Siderite. Trace of Calcite. Trace of Lignite. Trace of Limestcne, dark brovm, a ~alcarenite. Clay, 30%. .,. As above, but the Siltstone is more argillaceous, softer. Increase in Lignite. Trace of LiIesto~e as above. Clay, 20~. -66- j I I Cape Balkett 1~W-l e r 4610 I ¡ 1~6 20 46)0 f' I 4640 ¡-~ 4650 4660 r~ 4670 4680 g... í 4690 4700 4710 " .,.. '-'_4_0 ¡ I r [I { ( J' 4720 4730 474·0 Siltstone as above. Trace of Sandstone. ~race of Sh~le. Slight increase in Lignite. Trace of Siderite. Trace of Pyrite. Trace of Calcite. Clay, 30%. Very poor returns. As above. Increase in lignitic Coal. Clay, JO~. No sample coming over the shaker. Siltstone ~s above, but sandier, softer. Increased Sandstone, 10~. Trace of bentonitic Shale. Trace of Bentonite. Trace of Siderite. Trace of lignitic Coal. Reduction in Calcite. Piece of Eemmenites. Siltstone as ~bove, with some carbonaceous stecY-s. Sr.:c..ll amount of: Sar.dsto~e. Trace of ?yrite. - As above. Increase in Sandstone, 5%. Trace of S~ale. Slight ir1crease in Siderite. Tra~ce of Coal. Trace of Ee~t- onite. Trace of Calcite. Siltstone. Trace of Sandstone. S~all amount of Shale, grey, platy, bentonitic in part, in part silty. Trace of Calcite. Trace of Siderite. Mainly Siltstone. Traces of Siderite, Calcite, Lignite. The Lignite is partially mineralized. Siltstone as above. Trace of Sandstone. Small amo~nt of Shale, in part silty. Trace of S$derite. Reduced Calcite. - f·:O. Lif:,rni te. Si]~tstone J grey, argilla.ceous, in part sa!ldy. S:c1alJ_ a7.our:t of Sandstone. Small amount of grey, bentonitic Shale. Trace of Side~ite. Trace of Calcite. Siltstone as above, harder, more sandy. Small amount of Sandstone. Trace of Lignite. Trace of Siderite and sideritic Siltstone. Trace of Calcite. Trace of Coal. As above. Trace of Bentonite. Trace of pyritizeà worm camts. Trace of shell fragments. Siltstone as above, in general more argillaceous. Trace of Sandstone, grey, argillaceous, calcareous. Trace of Shale, grey, bentonitic. Trace of Siderite. Trace of Calcite. Trace of Lignite. Trace of pyritized \'Torm CS.S-CS. Siltstone as above, harder, sandier. Trace of Shale. ~race of Siderite. Trace of Calcite. Trace of Lignite. . Siltstone, €:Tey, arEi llaceous, in part sand:;-. 'I'race of C:-:lnd.".tone s~,..... and pe.,...·per Q"artz a'''Q' ("\1--er+ wi +¡... V~.,..'- ~ -'~... \.~ ... . c. _~ L" ... .1:: . VI, .. l -J 11 _ \.I t. _ v...;. ~ - ..". r2re Siderite grr.ins, fine, sub8T1[1J.lar, "ie 11 sorted, well consolidated, calcareous matrix. S~a.ll a~ou~t of c::h ' 1 t· t b + . .... . . ...... ~ + ~ .aLe, grey, p_.a y, 1n pa.r enwOnl~)C, lTI perl ~lL~Y. Tr~ce of Siderite. Tra~e of Calcite. Trace of Coal. Trace of pyri tized worm casts. Tra.ce of I,:arcasite. -67 - í [~:J r C r c Cape Halkett 1tÞ-2W-1 e 4750 4760 4770 4780 4790 I~l ¡I I 4800 4810 4820 4830 Siltstone as above. Reduced Sandstone. Shale as above. Increased Siderite. Increasèè Coal. Trace of Calcite. Trace of Bentonite. Siltstone, grey, argillaceous. Small amount of Sh2le, b t "t" m ~ S·, "t rn ~ '"' I "t grey, . en onJ. J.C. 'l.race oj. 1.oerJ. e. .I.. race 0..:. ',-,a C1..e. Trace of Coal. Trace of Bentonite. Trace of light green, chloritic Shale. Trace of finely crystalline Pyrite. As above. Increased Calcite. Trace of light green Shale. Trace of Limestone, dark bro~TI, a Calcilutite. As above. Some Chert fragments and rounded Chert nodules. Trace of conglomeritic Sandstone, Chert and Quartz grains, rounded, in a pyritic matrix. Possibly from above. Siltstone as above, brownish-grey, soft, a.rgillace ous and grey, hard, sandy. Sandstone, 10%. Increased Shale, gr~Yt bentonitic, in part silty. Increased Bentonite, 5%. Trace of Siderite, trace of Calcite. Trace of lignitic Coal. Some Chert nodules and fragments from above. Siltstone as above. Small amount of Shale. Trace of Siderite. Trace of Calcite. Trace of pyritized worm casts. Trace of Befumenites. As above. I~creased bentonitic Shale. Increased Bentonite. Trace of Pyrite. Siltstone as above, mostly sandy. Trace of very fine Sandstone. Shale, light grey to grey, soft, bentonitic, 10%. Trace of Siderite. Trace of Calcite. Trace of Aragonite. Bentonite, 5%. As above. Reduced Bentonite. Trace of Pyrite. Slight increase in Siderite. 4840 Siltstone as above, in general lighter. Trace of Sand- stone, salt and pepper, calcareous. Trace of Shale. Trace of Siderite. Trace of Calcite. Trace of Bentonmte. ~race of Limestone, dark brown, very argillaceous, a Calci- lutite. r' II t' t' j , 4850 As above. Sandstone, 10%. Trace of Shale. Traces of Siderite, Calcite and Coal. Clay, 20%. 48§0 As above. 4870 Sample mainly Cement cavings. Cleaning the shaker box. · Increase in Sandstone. 4880 Mainly Cement. Siltstone as above. Trace of Shale. Trace of Calcite. , j -68- 11 r! l\ II Cape Halkett 1t1L2W-1 e 4890 4900 4910 4920 1'1 I. ..: 4930 n 4940 4950 4960 ¡~ 4970 4980 i 4990 5000 5010 f 1 to r 5020 5030 5040 c;o c;o - ..-' 5060 \ -1 Mainly Cement cavings. Siltstone. Trace of Shale. Trace of Coal. Cement 90%. Mainly Cement as above. Trace of Coal. Cement cavings, 80%. Siltstone as above, hard, sandy. Trace of Shale. Trace of Siderite. Trace of Coal. Cement cavings, 85%. Siltsto~e. Sandstone, 10%. Tr~ce of Shale. Trace of Siderite. Trace of Calcite. Trace of Coal. Cement, 60%. Siltstone. Shale, 10%. Small amount of Coal, with a higher lustre, subconcoidal fracture. Cement, 40%. Siltstone as above,· more brownish-grey, with some Sericite. Trace of Sandstone. Shale, 10%. Small amount of Coal. Trace of Calcite. Trace of Siderite. Trace of Marcasite. As above. Cement, 30%. As above. Cement, 40%. As above. Cement 20%. Slight increase in Shale. Traces of Siderite and Calcite. Cement, 15%. Siltstone, grey, hard, in part sandy. Shale, grey, bentonitic, 20%. Sone Coal and some Lignite. Trace of Calcite. Trace of Bentonite. Trace of Marcasite. Cement, 10%. Siltstone as above. Shale, 20%. Trace of Shale and Lignite banding. Traces of Coal, Calcite and Siderite. Cement cavings, 80%. Siltstone, Shale and Coal. Mainly Cement. Siltstone, Shale and Coal. Trace of Limestone. Trace of Pyrite. Cement, 50%. Siltstone as above. Shale, 15%. Trace of Calcite. Trace of Coa~. Cement, 40%. Siltstone as above. Trace of Shale. Trace of Coal. Trace of Eentonite. Trace of Calcite. As above. Mainly Cement. Siltstone. Traces of Shale, Coal, Calcite 'and Bentonite. .,0< Mainly Cement. Small amount of Siltstone. Trace of Shale, light grey to srey. Trace of Calcite. Trace of Coal. -69- 11 [¡ II [\ 11 [ Cape Halkett 1~2W-1 e 5070 5080 5090 5100 5110 5120 5130 \~ 5140 5150 Î 5160 5170 [ , 1 1 L J 5180 5190 5200 5210 Cement cavings, 60%. Siltstone, grey, hard, in part sandy. Trace of Shale, grey, bentonitic. Trace of Coal. Trace of Calcite. Cement, 70%. Siltstone as above. Trace of Coal. Trace of Shale. Trace of Calcite. Cement, 70%. Siltstone as above. Shale, 3%. Small amount of Coal. Trace cf Pyrite. Trace of Marcasite. Trace of Siderite. Trace of Calcite. As above. Trace of Coal. Trace of Lignite. As above. Shale, 10%. Trace of Coal. Trace of Calcite. Trace of sideritic Siltstone. Trace of Pyrite. Trace of pvritized worm casts. _" As above. Cement, 30%. Shale is more silty, 10%. Coal and Lignite, 5%. Trace of Calcite. Cement, 50%. Siltstone. Shale, 5%. Coal, 5%. Trace of Siderite. Trace of Calcite. Cement, 20%. Siltstone as above, in part soft, argill- aceous. Shale as above, 5%. Trace of Siderite. Trace of Calcite. Trace of liQ1itic Coal. Cement, 20%. Siltstone. Shale, 10%. Trace of Calcite. Trace of Bentonite. Cement, 30%. Siltstone and Shale. Trace of Pyrite. Trace of l\Iarcasi te. Cement, 5%, Siltstone as above, in part brovmish- grey, soft, argillaceous, laminated. Shale, light grey to grey, bentonitic, 10%. Small amount of Coal. Trace of Siderite, Prace of Pyrite. Trace of Calcite. Siltstone as above, in part soft, in part grey, hard, sandy. Shale, light grey to grey, bentonitic, in part silty. Trace of Coal. Trace of Siderite, Calcite and Pyrite. Some loose Silt. Siltstone. Trace of Sandstone. Shale, 10%. Trace of Calcite. Small amount of Coal. Trace of Siderite. Some loose Silt. Siltstone as above. Trace of Sandstone. Small a.mount of Shale. Trace of Calcite. Trace of Siderite. Trace of Fyrite. Trace of Coal. Some loose Silt. .... Siltstone as above. Increa.sed Shale, 20%. S~all a~ount of Pyrite and pyritized v:or:n casts. Small 2.~our:t of ~C3.l. Trace of C2.!c~te. ~race of sideritic Siltstone. -70- ì~ I r r Cape Halkett ~-2W-1 e 5220 5230 , I 5240 [ 5250 5260 5270 -1 ! I t I 5280 5290 5300 I r I L I L I t I j Siltstone as above. Sandstone, 10%. Shale, light grey to dark grey, platy~.Small amount cf Coalo Trace of Pyrite and I(arcasi te. Trace of Calcite. Reduced Sil tstc,ne. Small amount of Sandstone. Sh£.le, 25%. Small amou.nt of Pyrite and Marcasite. Trace of Calcite. Trace of Limestone, dark bro~nish-grey, cryptocrystalline, a Ca.lcilutite. Siltstone as above. Shale, 10%. Small amount of Coal. Trace of Calcite. Trace of Bentonite. Trace of Karcasite. TRIPPED AT 5259' Post trip sample. Siltstone as above. Shale, light grey to grey, bentonitic, soft, 15%. Trace of Calcite. Trace of Coal. Some loose Silt and Sand. Clay, 30%. Clay, 30~~. Siltstone as above.. Small amount of Shale. Trace of Pyrite. Considerable loose Silt and Sand. Clay, 70%. Sandy Siltstone as above, in part poorly consolidated. Shale, light grey to grey, bentonitic, in part silty, 10%. Trace of Calcite. Trace of Pyrite. Considerable loose Silt and Sand. Clay, 30%. Siltstone as above. Shale, in part soft and laminated, 5%. Small a.mount of finely crystalline Pyrite. Trace of Bentonite. Trace of Coal. Clay, 40%. Siltstone as above. Sandstone, light grey, salt and pepper, hard, subangular, calcareous. Shale, as above, 15%. Trace of Coal. Trace of Siderite. Trace of Calcite. Clay, 50%. Siltstone. Sandstone, 15%. Trace of Shale. Small amount of Pyrite. Trace of pyritized worm casts. Trace of Calcite. Trace of Sideriteo Considerable Silt and Sand. 5310 Clay, 40%, in part silty. Sandstone as above, 5%. Shale, 10%. Trace of Calcit~. Trace of Pyrite. Trace of Coal. Trace of Siderite. 5320 Clay, 30%. Siltstone, Shal~ and Sandstone as 2.bove. Trace of Coal. Trace of Bentonite. Trace of Calcite. Trace of P~Tite. Trace of Siderite. 5330 .. Reduced Clê.Y, 20~0 Increased Sandstone, 2.5%0 Reduced Shale, 5%. Consièerable amount of Pyrite and pyritized ~ worm casts. Trace of Siåerite. Trace of Coal. Trace of Calcite. Some loose Silt. I I -71- l~ r' l [ r~ ¡ Cape Halkett ~N-2W-1 e 5340 5350 [ 5360 5370 5380 5390 5400 Î 5410 Clay, 15%. Siltstone as above, mostly grey, hard, sandy. Sandstone as above, 10%. Trace of Sar.dstone, salt and pepper, Quartz and Chert grains, fine to cedium, angular, fairly well sorted, well consolidated, calcar- eous, tight. Shale as above, 5%. Trace of Caloite. Trace of Siderite. Trace of Coal. Trace of Pyrite. Clay, 20%. Sandstone, 45%. Siltstone as above, argillaceous. Shale, light grey to grey, in part with a brownish- tinge, 25%. Traces of Siderite, Coal, Calcite and PJTite. Clay, 20%. Decrease in Sandstone, )"0%. Increased Shale, 10%. Considerable Pyrite. Trace of Calcite. Trace of Siderite. Trace of Coal. As above. Sandstone, 30%. Shale, 15%0 Clay, 20%. Siderite as above. Sandstone, 15%. Shale, 10%. Trace of Pyrite. Trace of Siderite. Trace of Calcite. Clay, 20%. Siltstone. Sandstone, 25%. Shale, 5%. Trace of Siderite. Trace of Calcite. Trace of Pyrite. Trace of smoky Chert nodules. Clay, 20%. Siltstone as above. Sandstone, 30%, salt and pepper, Quartz a.nd Chert with rare Siderite grains, fine, subangular, poorly sorted, well consolidated, calcareous, tight. Shale, in part silty, 20%. Small amount of PJTite. Trace of Calcite. Clay, 20%. Sandstone, 40%, Siltstone 30%. Shale, 10%. Traces of Pyrite, Marcasite, Siderite, Calcite. 5420 Clay, 30%. Sandstone, 15%, Shale, 20%. Siltstone as above. Trace of Siderite. Trace of Pyriteo Trace of Calcite. Trace of Coal. I r 1 ¡~ tl j 5430 Clay, 20%. Siltstone. Sandstone, 15%. Shale, 5%. Trace of Shale, dark brovmish-grey, soft. Traces of Siderite, Pyrite, Calcite and Coalo 5440 Clay, 20%0 Sandstone, 40%. Siltstone. Shale 10%. Increased Pyrite and pyritized worm casts. Trace of Siderite. Trace of Calcite. Trace of Coalo 5450 Clay, 25%. Sandstone, 20%. Siltstone. Shale, 5%. Trace of Siderite. Trace of Calcite. Trace of Pyrite. Small amo1h'1t of Coal. ., 5460 Clay, 30%. Sandstone, 35%. Siltstone. Shale, 10%. Pyrite and a trace of Marcasite. Trace of Siderite. Trace of Calcite. Trace of Coal~ -72- 1 { Cape Balkett ~-2W-1 e [, ¡~ I 5470 5480 5490 r ( l 5500 5510 5520 55:30 I', ,v~ 5540 5550 [' l r .5560 "'5?0 ::> . 5580 ¡ -L Clay, 50%0 Siltstone, as above. Sandstone, 10%. Trace of Shale. Pyrite, 5%. Traces of Siderite, Calcite and Coalo Clay, 60%. Siltstone as above, grey, hard, argillaceous, in part sEndy. Shale as above, 5%. Traces of Siderite, Pyrite, Calcite and Coal. Clay, 60%. Siltstone as above, in general softer, more argillaceous. Shale as above with some dark bro~~ish-grey, soft, bentonitic, 5%. Very finely crystalline Pyrite and pyritized worm casts, 5%. Trace of Siderite. Trace of Calcite. Trace of Coalo Clay, 50%. Sample mainly Siltstone. Small amount of Shale. Pyrite and Marcasite, 3%. Trace of pyritized wood. Trace of Calcite. Trace of a Brachiopod. Claÿ, 50%0 Siltstone. Small amount of Shale. Trace of Siderite. Clay, 50%. Siltstone, argillaceous, hard. Trace of Sandstone. Trace of bentonitic Shale. Trace of Siderite. Trace of Calcite. Trace of Coal. Clay, 50%. Siltstone. Trace of Shale. S~all amount of Pyrite. Trace of Siderite. Trace of Calcite. Trace of Coal. Clay, 40%. Sandstone as above, 30%. Siltstone, 30%. Considerable finely crystalline P~Tite. Traces of Siderite, Coal and Calcit~. Clay, 40%. Siltstone as above, hard, argillaceous, mn part sandy~ Sandstone, salt and pepper, subangular, fine, well sorted, calcareous, 25%. Trace of Shale. Small amount of Pyrite. Trace of pyritized wood. Trace of Siderite. Trace of Coal. Trace of Calcite. Trace of Limestone, dark brovmish-.grey, cryptocrystalline. Clay, 40%. Siltstone, as above. Sandsto~e, 10%. Shale, 10%. Siderite, 5%. Some Pyrite. Trace of Coal. Trace of Calcite. 'Clay, 50%. SiltRtone. Sandstone, 20%. Trace of Pyrite. Trace of Siderite. Trace of Calcite. Cla;)' as above . Siltstone. Sandstor:e, .5%. Pyri -::e, 5%. Siderite, 2%. 5590 ~ Clay, 60%. Re~ainder of sample mostly Cement c~vings. Trace of Coal. 5600 J Cla.y and Cement. -73 - i í=~j II II II rJ Cape 5610 .5620 56)0 5640 5650 5660 5670 I~-I II W ~680 -" 5690 5700 [1 [I l' [_I 5710 5720 "'7~O :J....I 5740 l 1 l I 1 Halkett 1t1Þ-2W-1 e Clay, .50%. Cement cavings, 45%. Siltstone and Shale. Trace of Coal. CJ 5 ~ ~ t ~~'lt t m f C 1 .ay, Olc. ....ernen , 25 /00':;:'2. S one. lrace 0 oa. Clay, 50%. Cement cuttings. Small amount of Coal. Small amount of Pyrite. Trace of Siltstoneo Trace of Shale. Clay, 40%. Cement cuttings. Small amo~~t of Siltstone, grey, hard, argillaceous, in part sandy. Small amount of Shale. Trace of Siderite. Clay, 40%. Cement cavings. Small amount of Siltstone. Trace of Shale. Trace of finely crystalline Pyrite~ Trace of Coal. Clay, 40~. Cement, 25%. Siltstone, 25%. Sandstone, 10%. Trace of Shale; Trace of Pyrite. Trace of Siderite. Trace of Coal. Clay, 20%. Cement, 25%. Siltstone, 20%. Sandstone, 15%. Shale~ Small amount of finely crystalline Pyrite. Trace of Calcite. Trace of Coal. Clay, 20%. Cement cavings. Siltstone as above, grey, hard, argillaceous. Sandstone, salt and pppper, calcareous, 10%~ Traceof Shale. Trace of Siderite. Small amount of Pyrite. Trace of Coala Trace of Calcite. Trace of light green Sh~le. Clay, )0%; Cement, 15%. Siltstone. Sandstone, 15%. Trace of Shale. Trace of p)Tite. Trace of Siderite. Trace of Calcite. Clay, 50%. Cement, 25%. Siltstone. Sandstone, 5%. Trace of Pyrite. Trace of SLderite. Trace of Calcite. Trace of Cõal. Trace of light green, chloritic Shale~ Clay, 50%. Siltstone. Pyrite, 5%. Trace of Shale. Trace of Coal. Trace of Siderite. Small amount of Silt and Sand. Clay, 55%. Ce~ent 25%. Siltstone. Sandstone, 5%. Trace of Pyrite. Trace of Coal. Trace of Siderite. Trace of Calcite. C12.y, 50%. Cement, 10%. Siltstone. Sandstone, 20%. -Trace of Shale. Pyrite, 5~o Trace of Siderite. Trace of Calcite. Trace of Coal. Trace of light green, silty Shale. "<F Clay, 50%. Reduced Cement. Sandstcne, 20%. Siltstone, 20~~. Trace of Shale. Small amount of Siderite. Traces of Pyrite, Calcite and COEl. -74 - f r I [ . I I . Cape Halkett '.-2W-l e 5750 5760 5770 5780 5790 l_> 5800 5810 i Clay, 40%. Cemento Sandstone, 20%. Siltstone, 25%. Trace of Siderite. Trace of Pyriteo Trace of Calciteo As above. Reduced Cement. TRIPPED AT 5770' Post trip sample. Clay, 60%. Siltstone, grey, hard. Sandstone, s~lt and pepper, fine, calcareo~s, 3%0 Finely crystalline Pyrite, 5%. Shale, grey, bentonitic, 5%. Trace of Calcite. Trace of Siderite. Considerable reduction in Clay, 15%. Siltstone, grey, argillaceous. Sandstone, 15%. Shale, light grey to grey, and dark bro\~ish-grey, bentonit~c, in part silty, 20%0 Trace of Siderite. Trace of Coal. Trace of Calcite. Trace of finely crystalline Pyrite. Clay, 15%. Siltatone as above. Sandstone, in part angular, calcareous, 30%. Shale as above, 25%. Pyrite and some Karcasite, 5%. Traces of Calcite, Siderite, Coal. Clay, 20%. Shale as above, mostly silty, 35%. Siltstone, 25%. Sandsto~e as above, 20%. Small amount of Pyrite. Trace of Siderite. Trace of Coal. Trace of Calcite. Clay, 10%. Mainly Siltstone. Shale, 10%. Sandstone, 5%0 Small amount of Pyrite. Trace of Siderite. Trace of Calcite. 5820 Clay, 10%. Siltstone. in £eneral softer, more argill- aceous than above. Small amm¡nt of Sandstone, grey, salt and pepper, Quartz and Chert grains, fine, sub- angular, well sotted,slightly calcareous, more friable. Shale, grey, bentonitic, soft, grading to a Mudstone, in part laminated, with some lignitic smears ~nd partings. Small amount of very finely crystalline Pyrite. Trace of Siderite. Trace of Calcite. Trace of Bentonite. 5830 Clay, 5%. Siltstone, grey, soft, argillaceous, with scattered lignitic material, in part slightly laminated. Shale as above, in part silty, 10%. Reduced Pyrite. Traces of Siderite, Calcite and Coal. r' l I L 5840 Siltstone as above, gradinE into a fine, sal~ and pepper Sandstone. Shale as above, soft, grey, 15%. Small amount of Pyrite and ~arcasite. Trace of Siderite. Trace of Calcite. Trace of Coal. 5850 Siltstone as above, soft, argillaceous, with so~e ... carbonace ous streaks. Shale, grey and bro"mish-grey, sofi:, in part silt:,', 351. Sandstcne , salt and pf.:pper, soft, argill~ceous, calcareous, 15%. Trace of Pyrite. Trace of Calcite. Trace of Coal. I ¡ J -75- ,~ (J r \ \ r Cape 5860 5870 5880 5890 5900 5910 ~l l 5920 i 5930 5940 5950 11 5960 I 5970 1 5980 I L 5990 Hal1œtt W-2W-1 e Siltstone as above, with scattered, carbonaceous SD€cks. Shale as aboye, in part silty, grading to a Kudstoñe, 45%0 Trace of soft, argillaceous Sandstone. Trace of Pyrite. Trace of Calcite. Trace of Coal. As above. Siltstone, grey and bro~~ish-grey, soft, poorly consolidated. Shale, brovmish-grey and grey, grading to a híudstone, in part silty, 40%0 Sandstone as above, with some lignitic inclusions, 5%. Shale as above, mostly silty, 60%. Trace of Coal. Trace of Marcasite. Sando 40%0 S'1 . ~_"t Siltstcne, Some loose and Shale as above, 55%. Siltstone. Small a~ount of Sand- stone. Trace of Siderite. Trace of Calciteo Shale and Siltstone as above, 50-50. Sœall amount of Marcasite. Trace of Coal. Trace of Calcite. Shale, grey amd brovmish-grey, soft, bentonitic, in part silty, 50%. Siltstone, grey, soft. Sandstone, salt and pepper, calcareous, 20%0 Small amount of ~arcasite. Trace of Coal. Clay, 20%. Siltstone, grey, soft, argiliaceous, with scattered carbonaceous specks, soft, argillaceous. Small amount of calcareous Sandstone. Shale, 5%. Small amount of Coal. Pyrite and i~:arcasite, y~. 'I'race of Siderite, Trace of Calcite. Clay, 25%. Siltstone. Sandstone, 5%. ~race of Coal. Trace of Siderite. Small amount of Pyrite and r:;arcasite. Clay, 60%, in part silty. Sandstone, 20%. Small amount of Siderite. Trace of Pyrite. Trace of Calcite. Clay, 6o~. So~e peorly consolidated Siltstcne. Sand- t 15td. S1 1 5d. -" . . 1 Ot1f. C:::" . ... r::.#Of S one, /0. 1a__e, ¡Co J~,arcas~"te, _ /~o .....~aerJ."e, J:~. Very little sample coming c·rer. Clay, 70%. Siltstone. Shale, 10%. Ii:arcasi te, 5~ /0. Cla~r , 60%. Siltstoneo Shale, 15%. Small amou!", t of I::arcasi te. Clay, 60%. Siltstone, grey and brovmish-grey, soft, argillaoeous. Small amount of Sandstone, crey, salt 8.nd pepper, friable, arcillaceous2 Trace of fine~y crystalline Pyrite. Some loose Silto "]a~r b'O~ ~~l"'ctonp ð~ a~ove C:::-~Q·~to-e 1"~ ~-~CP C~ ..,ràJ "'"", J . /0. .........._l,..... .,--' ç~.._~ ....LJ . ...0...........; . .;. , _\., ,~. .-';'.\". ,Þ..... 1.... Shale. Traces of Pyrite, Siderite, Coa10 Co~sideratle loose Silt a~d Sand. -76 - Cape Halkett 4tN-2W-1 e rO'j n II [: [] 6000 6010 6020 6030 6040 [ 6050 6060 Î 6070 Clay, 50%. Siltstone as above. Sandstone, 10%. Trace of Shale. Traces of Pyrite, Siderite, Coal. Considerable loose Silt and Sand. Clay, 6o~. Siltstone. Sandstone, iO~. Pyrite, 5%. Trace of Siderite. Clay, 60%. Siltstone as above, poorly conefulidated. Sandstone, salt and pepper, fine, sub angular, slightly calcareous, 10%. Trace of Shale. Small amount of Pyrite. Trace of Coal. Loose Silt and. Sand. Clay, 50%. Siltstone, bro~TIish-greYf soft, poorly consol- idated, argillaceous. Sandstone, grey, argillaceous, friable, .5%. Trace of Sha.le, grey to brownish-grey, soft, bentonitic, in part silty. Small amount of Pyrite. Some loose Silt and Sand. Clay, 50%. Siltstone as above, in part sandy. Sandstone, salt and pepper, Quartz and Chert with rare Siderite grains, fine, suban~~lar, well sorted, fairly well consolidated, slightly ca.lcareous matrix, 5%. Trace of silty Shale. Trace of Pyrite. Trace of Calcite. Clay, 40%. Siltstone. Sandstone, 25%. Trace of Shale. Small amount of Pyrite, Marcasite and pyritized worm casts. Trace of Calcite. Clay, 40%. Siltstone. Sandstone, 20%, slightly calcareous. Shale, light grey to grey, bentonitic, less silty, 5%. Trace of Marcasite, Pj-rri te and pyri tized worm casts. Trace of Siderite. Trace of.Calcite. Some loose silt and Sand·. Clay, 25%. Siltstone. Sandstone as above, 3~%. Trace of Shale. Small amount of Siderite. Trace of Pyrite and Marcasite. Trace of Shale. Trace of Calcite. 6080 Cla.y, 20%. Siltstone, brownish-grey, soft, argillaceous, in part sandy. Sandstone as above, slightly calcareot1.s, 30%. Shale, grey and brovmish-grey, soft, bentonitic, grading to a Claystone, 10%. Traces of Siderite, Coal, Calciteo . ( I l 6096 ClaYJ 15~. Sandstone, salt and pepper, slightly calcar- eous, 40%. Siltstone. Shale as above, 10%. Trace of Siderite. Trace of Coal. Some loose Sand. 6100 Clay, 10%0 Sandstone as above, very fine to fin?, 40%0 - Siltstone as above, soft, argillaceous. Shale as above ~ 10%. Trace of Calcite. Trace of Coal. 6110 Clay, 10%. sandstone, 40%. Silteto~e. 35%. Sh~lE. -77- 11 r~'1 n Il [1 rl Cape Halkett 1~2W-1 e 6120 6130 6140 6150 6160 6170 [ C û . 6180 6190 6200 6210 I·' .y' 't·, [1 ¡ 1 [. ¡' I' Clay, 5%. Sandstone, 30%. Siltstone. Shale, 15%. Trace of Coal. Trace of finely crystalline Pyrite. Siltstone as above. Sandstone, salt and pepper, Quartz and Chert grains, fine, subangular, celcareous, 30~. Shale, grey and brovmish-grey, soft, bentonitic~ in part silty, 25%. Trace of Coal. Trace of Calcite. As above. Siltstone. Sandstone, 30%. Shale, 35%. Trace of Calcite. Trace of Coal. Siltstone. Sandstone as above, in general lighter, less argillaceous, 30%0 Shale, 30%0 Trace of Siderite. Trace of Calcite. Siltstone. Sandstone, 25%. Shale, 30%. Trace of Siderite. Trace of Calcite. Trace of Coal. Siltstone as above, soft, very argillaceouso Sandstone as above, but cleaner, more friable, no shows, 20%. Shale as above, mainly brownish-grey, 45%. Trace of finely crystalline Pyriteo Trace of Sideriteo Trace of Calcite. Shale as above, in part silty, 40%. Siltstone as above, soft, argillaceous 0 Sandstone, very fine, argillaceous, friable, no visible porosity, no shows, 25%0 Trace of Siderite. Some loose Silt and Sand. Argillaceous Siltstone and silty Shale. Sandstone as above, 30%. Traces of Pyrite, Siderite, Calcite. Shale as above, in part silty, 50%. Siltstone. Sand- stone, 10%. Trace of Pyriteo Trace of Calcite. No recovery. Cleaning screen. 6220 ~ostly Cement. Shale and Siltstone. Some Coal. 6230 Cement cavings, 70%. Shale, grey and brownish-grey, soft, in part bentonitic, in part silty. Lesser a~ount of soft, argillaceous Siltstone. Trace of Coal. 6240 Cement, 60%. Siltstone and Shale. Trace of Coal. 6250 Cement, 40%. Siltstone, grey, argilla.ceous, soft, with scattered carõònaceous specks. Shale, grey to bro~~ish-grey, rou£h te&ture, platy, in part benton- itic, in part silty, 35%. SODe loose Silt and Sand. 6260 "" Reduced Cement. Reduced St}ale. Increased Siltstone. Trace of finely crystalline Pyrite and Varcasite. Trace of Coal. I I -78- r· n n I~ Cape Halkett~N-2W-1 e 6270 6280 I ¡ 6290 6Joo n 6)10 6320 6))0 11 [I 1 W 6]40 6350 6360 6370 6380 6390 ¡ I l 6400 I I I L I t I ~ 6410 Shale as above, 45%. Siltstone. Sandstone, salt and pepper, Quartz and Chert grains, fine, subangular, well scrted, ca.lcareous matrix, in part friable, 20%. Trace of Siderite. Trace of Calcite. Siltstone as above, argillaceous, 40%. Shale as above, but harder, blocky to plat Yo Sandstone as above, 15%. Trace of Coalo As above. Shale, 40%. Sandstone, 5%. Screen washed down again. Cement cavings, 75%. Siltstome and Shale. Cement, 75~. Siltstone, lesser Shale, trace of Sandstone. Trace of Coal. Mostly Cement. Siltstone and Shale. Cement. Siltstone and Shale. Trace of Coal. Trace of Calcite. Cement. Clay, 10%. Shale, 60%. Siltstone. Cement as above. Shale and Siltstone2 Reduced Cement. Clay, 5%. Shale, grey, platy to fissile and Shale, dark grey, blocky, 60%. Siltstone, grey, argillaceous, in part sandyo Cement, 40%. Shale as above, in part silty, 40%. Siltstone, grey, with scattered carbonaceous specks. Trace of Calcite. Trace of Bentonite. Trace of Coal. Cement, 80%. Siltstone. Shale as above, 15%4 Trace of Coa14 Ce~ent, 80%. Shale, mostly bro~~ish-grey, soft, grading to a Wudstone, 15%. Siltstone ad above. Trace of Sand- s ton e . Cement, 80%. Shale as above and Shale, grey, smoother texture, platy to blocl~T, 15%. Siltstone. Trace of Sandstone. Some loose Silt. Cement. Shale as above. Siltstone. Trace of Sandstone, fine, subangular, calcareous matrix, tight, no shows. 6420· Cer.ent~ Shale as above, mostly grey, in part smJty, 15%. Siltstone, grey, soft, argillaceous. Trace of Sandstcne as abo;e, in part friable. Loose Silt and Sand. 64JO I I CeITent. Shale, Siltstone, trace of Sandstone. Trace of Coal. -79- ì f"1 1/ II I II II Cape Halkett 1~2W-1 6440 6450 6460 6470 6480 6490 6500 6510 6520 'I 6.530 654·0 e Cement cavings. Shale and Siltstone. Trace of Sand- stone. Cement. Increased Siltstone. Shale as above. Loose Silt and Sand. As above. Increased Siltstone. Increased Silt and Sando Reduced Cement. Siltstone as above, with scattered carbonaceous specks. Shale as above, 15%. Trace of Sandstone. Trace of Varcasite~ I\"1ainly Cement. SiltEto::.e. Trace of S!¡:::.le. Trace of Coal. Shale, light grey and light brownish-grey, platy. Siltstone. Trace o~ Sandstone. Sample mostly Cement. Reduced Cement. Shale. Siltstone, grading into a very fine Sandstone, salt and pepper, Quartz and Chert, non calcareous, friable, no shov!s. Increased Sandstone as above, slightly calcareous, 20%. Decreased Siltstone. Shale, grey to bro~~ish~grey, soft, platy and Shale, dark grey, ~ore blocbj. Loose Silt and Sand.. Slight increase in Sandstone as above. Shale, slightly firmer. Siltstone as above. Sandstone, salt and pepper, Quartz and Chert grains, fine, subangular, well sorted, poorly consolidated, slightly calcareous matrix, no shows, 25%. Shale, grey to brov-mish-grey, soft, silty, 5%. Loose Silt and Sand. .". As above. Sandstone is more poorly sorted, 10%0 Shale is firr.-!er. 6550 Shale as above. Siltstone, 20%. Small amount of Sand- stone. Trace of Pyrite and Earcasite. Trace of Calcite. I' f ¡ " t_" ¡ 6560 Shale. Increase in Sandstone as above. Siltstone, 10%. Trace of Siderite. Trace of Calcite. Trace of Pyrite. 6570 Sil tstC!~e, grey, argillaceous. Shale, grey to crcwmish- grey, soft, ~ough texture, i~re~~lar ìracture, in p~rt silty, 35%0 Sandstone, salt and pepper, Quartz and Chert grains, fine, sub2.ngular, poorly sorted, well . consolidated, slightly calcareous matrix, friable, 251. 6580 .,. Very little sample, Cement, 300:-;. "Reduction in Shale. ~race of Coal. Tr8ce of I.;a.rc2.si t8. -80- l' r~1 [l ¡l n fJ Cape Halkett 1e..2Vl-1 e 6590 6600 6610 6620 6630 6640 n ¡1 i 6650 6660 6670 6680 6690 L ¡ I 6700 Reduced Shale. Some light grey, bentonitic Shale, some finely lamin~ted with lignitic partings, 25%. Sandstone, 15~0 Trace of Bentonite. Trace of Calciteo Small amount volcanic Tuff, pos~ibly cavings. Siltstone, grey, soft, argillaceous. Sandstone, 20%0 c:h 1 of 1'(;1 >J a_e, ... :'10' Siltstone as above. Shale, mostly brov.trlish-grey, soft, silty, blocky to platy, )0%. Sandstone, light grey to grey, fine, fairly well sorted, calcareous, in part argillaceous. Trace of Siderite. Trace of Calcite. Trace of Coal. Shale as Above, brovmish-grey to grey, silty, 50%. Siltstone as above. Sandstone, 15%. Trace of Calcite. Cement cavings, 15%. Slight increase in Shale. Decrease in Sandstone. Traoe of Bentonite. TRIPPED AT 6667' Post trip sample. Shale, light grey to grey, rough texture, platy, in part bentonitic, in part silty. Shale, dark grey, rough texture, blocky, harder than above. Shale, ?02%. Siltstone, grey, argillaceous, in part with rare, carbonaceous specks, )0%. Trace of Calcite. Trace of Bentonite. Cement, 5%. Shale as above, 60%. Increased Siltstone, 35%. Small amount of lignitic Coal. Trace of Calcite. Trace of Bentonite. Trace of Tuff. Shale as above, predominate~y lighter grey, 80%. Siltstone as above~ 20%. Trace of Sandstone, salt and pepper, Quartz and Chert grains, fine, subangular, poorly sorted, non calcareous matrix, friable. Shale as above, mostly bro~~ish-grey, platy, 80%0 Siltstone as above. Increased Sandstone, friable. Trace of Bentonite. Trace of CaLcite. 8. Shale as above. Increased darker grey, harder Shale, 60%0 Siltstone as above. Sandstone, salt and pepper, ncncalcBreous, J%. Trace of Calcite. Shale as above, blocky to platy, in pa.rt silty, 55%. Siltst0~e, grey, argillaceous, with rare, scattered, ~arbonaceous specks. Trace of Sandstone, very fine to fine, slightly calcareous. ~ Reduction in Shale, 351. Siltstone as above, but firmer. Trace of Sandstone. Sone loose Silt and Sand. -81- 1-' [~-I n Cape Halkett .N-2W-1 e 6710 6720 [J 6730 Ii Siltstone. Shale as above, mostly silty, 30%. Trace of Sandstone, slightly calcareous. Cement cavings, 30%. Siltstone. Shale, 25%0 Trace of Sandstcne~ Sil-r.stone, grey to dark grey, argillaceous, in part with carbonaceous specks. Shale, light grey to grey, platy, in part bentonitic, in part silty, 35%. Sand- stone, salt and pepper, Quartz and Chert, very fine to fine, subangular, fairly well sorted, poorly consolidated, slightly calcareous matrix, friable, no shows, 25%0 Small amount of Cemento 6740 Shale as above, in general darker grey, 55%. Silt- s~one as above, 35%. Decrease in friable, noncalcar- eous Sandstone, 10%. Trace of Calcite. Trace of Siderite. 6750 Shale as above, in part bro~~ish-grey, in part silty, 65%. Siltstone as above. Sma.ll amount of salt and pepper Sandstone. [' 6760 Shale as above, 70%. Siltstone, in part light grey. Trace of Sandstone. Trace of Bentonite. . Shale as above, mostly grey, bloc~J, in part silty, 75%. Siltstone, grey, argillaceous. Sandstone, salt and pepper, friable, noncalcareous, 10%. Trace of Bentonite. 6780 Shale as above. Increased darker grey, bloc~, 65%. Siltstone as above, in general finer and slightly more argillaceous. No well defined boundary between Shale and Siltstone. Sandstone as above, in general finer and slightly more argillaceous. 6770 Î ~ [ I. t t~ r 6790 Reduced Shale, 60%. Increased Siltstone, in part lighter grey, with scattered carbonaceous specks. Small amount of Sandstcne as above. Trace of Calcite. 6800 ShE.le, brovmish-grey and grey to dark grey, mainly silty, 65%. Siltstone. Trace of Sandstone, more argillaceous. 6810 Shale, brownish-grey, grey and dark grey, in part silty, in "Dart platv, 6~~. SiltEtone, rn:''2V, arp:illeceous. Small amountU of Sandstone, salt~and pepper, noncalcareous. 6820 Shale a.s above, wit~ the darker grey Shale, pla.ty to slightly fissile, 50~;. Siltsto~e,gr9Y and liGhter. grey, ~ in part sandy. Trace of Sandstone, salt and pepper, very fine to fine, noncalcareous. -82 - i- ~l ¡~~, [1 \"j II Cape Halkett 1.-2Vl-1 e 68)0 6840 68.50 6860 6870 6880 I 6890 6000 ./ lP> l' 6910 6920 6930 \ . I ! 691.;.0 Shale as aboye. The darker grey Shale is slightly more fissile. Siltstcne as above. Sandstone, salt and pepper, Quartz~nd Chert, fine, subangular, well sorted, fairly well consolidated, siliceous matrix, 10%. Trace of dark bro~mish-grey Limestone, arEillaceous, a Calcilutite. Shale as above. The dark grey Shale has a smoother texture, is platy to fissile, 55%. Siltstone as above. Small amount of Sandstone as above. Trace of Coal. Shale as above, darker grey, platy. Siltstone, mainly lighter grey, with scattered carbonaceous specks, 40%. Trace of sideritic Siltstone. Trace of salt and pepper Sandstone. Shale as above, darker grey and brownish-grey, 55%. Siltstone as above. Trace of salt and pepper Sandstone. Trace of limy banding, almost marly. Shale as above,' mainly dark grey, platy to fissile, 60%. Siltstone~ mainlt lighter grey, hard, slightly argillaceous, with scattered dark specks, possibly Chert. Trace of Sandstone as above. Trace of Marcasite. Trace of Siderite. Shale as above, in part silty. Siltstone as above. Small amount of Sandstone.. Shale as above, 50%. Silt.stone, light grey, in part argillaceous, with scattered dark specks, in part sandy, grading to a fine Sandstone. Shale, grey tc è.s.r}ç grey , platy to fissil/=' I in :¡;art C'<:>nd~r Sr.r:t ~;"1+.,.+,..,-.~ l;p-htp.,.. ¡ëY>e" ,·d+h <='c-+te""ed L."c::.. J:, ',.,J..:;. ..__w_lJlo.::.v........;..';,;, ---I-ü" __ ¿.1., .1, ......1-0..1... __ 0.. V '- Chert grains, ir: part sandy. Trace of Sa.ndstone, s2.1 t aDd pepper, r.c!'"'~calcareous. The Siltstone occurs in thin layers in the Shale, with some very thin sandy la.yers. As above, but with the Shale reduced to 20%. Siltstone, light grey, hard. Shale as above, 15%. Trace of Sandstone. Siltstone, light {!;rey, hard, vIi th scattered Chert grains. J::inor darker grey, aq::;illaceous Siltstor~e. Shale as above, brov:nish-zrey 8.nd dark frey, 15;':. Sandstone, ~~l~ ~n~ ~~p~e~ ~l'ð"'+7 ~nd Cl~nr~1 ~~-in~ ~uba~~11a,.., ~',c.._ II Co.!.... _\..'. 1-1':;' ~'~_' .-, '.¡, "Q,_ V;..l (_.I. l, .. ,,-;;. I c.1. C.,.- _ I 0. .. lL" ..........C.._ J noncalcareous, 5~. ..,.. As above. Shale, !O~. Sandstone, 10%. -83 - 4 ¡ C2pe Halke~t 1tt-2W~1 6950 I~ 6960 6970 r- 6G80 ; 6990 7000 l 7010 7020 i 70)0 7040 [' I r 70£\0 , 0' 7060 7070 7080 I' e Siltstone as above, but slightly softer, more argill- aceous. Shale as above, 10%. Small amount of Sandstone as 8.bcve. Siltstone as above. Increased Shale, 20%. Trace of Sandstone a.s above, with poor porc~d ty. Faint yellow fluorescence when cut with Chlorothene. Shale as above, in part silty, 40%0 Siltstone as above. Sandstone as above, slightly ccarser, slightly bette~ porosity, but appears wet, no shows, Trace of Siderite As above 0 Sil tstcne 0 Shale, 25;.~0 Sandstcne a.s above, poorly sorted, slightly calcareous, no shows, 20~~. Increased Shale, mostly brovmish-grey, 50%. Siltstone as above 0 Sandstone as above, friable, no visible porosity. Increased Shale, mostly brownish-grey, in part silt Yo Siltstone as above~ Sandstone as above, salt and pepper, noncalcareous, friable, 15%. Shale, gre;/ a;~d 'brownish-grey, rough texture, in part silty and Shale, dark grey, smoother texture, platy to fissile, 4o~. Siltstone, rr:.ostly liE;ht grey. Sandstone, 20%. Shale as above, in general a little darkero Siltstone as above, mestly light grey. Sandstone as above, salt and pepper, slightly calcareous, friableo Shale as above, mostly brownish-grey, in part silty, 55%. Sil~stone as above, with rare Chert grains. Sandstone as above, in general finer, 5%. Shale as above, 35%. Siltstone. Sandstone, very fine to fine, harder than above. Shale as above, 1!:ith an increaEe in darlr grey, platy to fissile Shale, 65%. Siltstone as above, gr~ding to a very fine to fine, salt and pepper Sandstone, sub- angular, nonc¡:ÜcareotJ,s, 10%. Shale as abcve, 70%0 Siltstone. Sandstone, 20%. Shale, brovITIish-grey to dark grey, blocky to platy, in p2.rt silty, 70%. Siltstone, light grey, in part ar~il!aceous, in part sandy. Sandstone, salt and pepper, Quartz and Chert grains, fine, su.bansular, poorly sorted, ..,. "'e" co""!=:ol~''':¡~-!-ed <:o]i""'ntl'T C.,1"""'Y'eouc:: "no sh,..,v''''' 1~c:;.. \'\1 ... __ .i. ;.. ..w_ _ -:. c.~ v ,0 . _ _. ~.I. -....; c.. .- \... ç, _ ~--,... " \,.,I "...,J J _ .J. ., As BÞove.. -84- il r~ fl Il II o Cape Halkett ~-2W-1 e 7090 7100 7110 7120 7130 7140 7150 ¡-I 7160 w 7170 7180 7190 7200 r ¡ ( ( j' ¡ 7210 7220 I I Shale as above, 60~. Sandstone as above, 25%. Siltstone, é!_S a.bove. Shale as above, mostly bro\'mish-grey, in part silty, 65%. Sandstone ~s above, 20%. Siltstone, light grey and broì~ï1ish-grey . Shale, mostly brov-rnish-grey, with some dark grey, fissile, 70~. Siltstone as above. Sandstone, 5%. Shale as above, 40%,. Siltstone. Trace of Pyrite. Shale as above, blocky to platy, 50~. Siltstone as above. Sandstc~e, salt and pepper, slightly calcareous, friable, :!.5~. Shale as abovem, Mainly olive-bro~~, 40%. Siltstone, grey, firm, e.rgilla.ceous, in part sandy. Sandstone, salt and pepper, Quartz and Chert grains, fine, subangular, calcareous matrix, friable. Shale, olive-bro~TI and dark grey, blocky to platy, in part silty, k5%. Siltstone, light bro~m to bro~TIish-grey and grey, argillaceous. Sandstone, salt and pepper as above, very faint fluorescence when cut with Chloro- thEme, 25%.. As above. Increased Sil.tstone. Trace of sideritic Silt- stone.. Reduced Sandstone, 5%. Shale as above, 45%. Siltstone, firmer. Sandstone, 10%.. Shale as abcve, v!i th increased grey to dark grey Shale, 50%. Siltstone as above~ Sandstone, very fine, well sorted, less friable, 20%. Shale, as 2.bove, increased dark grey, 50%. Siltstone, as above. SIT18.1l amount of Sandstone. Shale as 8-bove, with increased dark £rey, platy to fissile Shale, 50%. Siltstone as above.. Sandstone, hard, very fine to fine, 10%. Trace of Pyrite. Trace of Siderite. Shale as above, mainly dark grey, platy to fissile, 65%0 Siltstone, brownish-grey and grey, argillaceous. Sandstone, salt and pepper, in general finer, les~ friable, 10%. Fi8sile Shale as a.bove and some Shale, brownish-grey, in part silty, 55%. Siltstone, light grey, grey and -brownish-grey. Reduced Sandstc-ne, in part with lignitic ~inclusions, more friable, 5%. Trace of Pyrite. -85- Cape Balkett ~-2W-1 e r--j 7230 [l 7240 [l 7250 ¡C-î Il 7260 7270 7280 7290 --,. ¡ I 7300 7310 M 7320 7330 1-' 7340 II L 7350 Increased Siltstone, mostly brownish-grey, argill- aceous, 60%. Shale as above. Reduced Sandsto~e, more argillaceous 0 Shale as above, mostly dark grey. Siltstone, liEht grey, grey, bro~~ish-grey, 40%. Trace of Sandstone, slightly argillaceous, tighto Shale, mostly brownish-grey to grey, blocky, 70%. Siltstone as aboveo Small amount of Sandstone, salt and pepper, with rare Siderite grains, fine, subangular, poorly consolidated, poorly sorted, slightly calcareous, no shows. Shale and Siltstone as above, 50-50. Trace of Sandstone. Shale as above, 70%0 Siltstone, light grey to grey and brovmish-grey, argillaceouso Trace of Sandstone. As above. Shale is more blocky. Trace of Calcite. Trace of Siderite. Shale as above, in ganeral softer. Trace of light green, chloritic Shale, Siltstone as above. Small amount of Sandstone. Increased siltstone. Shale as above. Siltstone, 60%. Shale, in general softer, in part finely laminated. Siltstone occurs in thin lenses in the Shale. Trace of Calcite. Shale, brownish-grey to grey, soft, dull earthy appearance, grading to a Claystoneo siltstone as above, with some coaly streaks, in part very argillaceous. Trace of tight Sandstone. Trace of Limestone, white, cryptocrystalline, silty to saDdy. As above. Shale. 70%. Siltstone, 30%. Trace of Bentonite. Sha-Ie as above. Shale, dark grey, soft, finely laminated, subbiturninous, silty in parto Has a dull bro~TIish-yelloVl fluorescence and a bright yellow fluorescence when cut with Chlorothene. Siltstone as above, soft, very argilla~eous. TRIPPED AT 7380' Post trip sample. She.le, brownish-grey, soft, blocky, in part silty and Shale, d£rk Erey, sUbbiturnincus, i~ part finely laminated. Bright yellovdsh-Vlhi te f} uorescence ~when cut with Ch10rot~ene. -86- 1 I. f . t. Cape Halkett 1~-2W-l e 7360 7370 7380 ¡ I . 7390 I. 7~·OO 7410 7420 Ii 7430 7440 WI I 7450 7460 I 7470 l__ 7480 l Shale as above with increased brownish-grey Shale, blocky to platy, subbituminous. Trace of Siltstone. Trace of Calcite. Trace of light green, bentonitic Shale. Shale, brownish-grey to dark srey, subbituminous. Trace of light green, bentonitic Shale. Trace of very argillaceous Siltstone. Trace of Tuff from above. Shale as above, in part silty. Trace of light green, bentoni~ic Shaleo Shale as above. Trace of Sandstone, salt and pepper, fine, subangular, very slightly calcareous. Tr2ce of Limestone, light grey, cryptocrystalline, finely brecciate~ and rece~ented, a Calcareni~e. Shale E'..s 21:1ove. Tr::~ce of light grey, bentonitic Sh2.1e. Trace of Limestone as above. Evidently occuring as very thin bands in the Shale. Trace of Pyrite. Shale as above, increasingly dark grey. Trace of grey, argillaceous Siltstone. Trace of Sandstone, very fine, salt and pepper, subangular, slightly calcareous. Trace of Calcite. Trace of Eento~ite. Shale as above. 5m2-II amount of Siltstone, light grey to grey, very argillaceous. Trace of Limestone, light grey to amber, cryptocrystalline, finely brecciated and recemented, a Calcarenite. 5ubbituminous Shale as above, less fluorescence with Chlorothene. Trace of light green, verybento~itic Shale. Small amount of Siltsto~e. Trace of Sandstone. Shale as above. Increased very light green, very bentonitic Shale. Trace of Siltstone. Trace of Inoceramus priE!!!s. Shale as above, mostl~l da.rk f7e~r, rough texture, irregu12.r fra cture, subbi tur::inous. Srr:all a~ou:;)t of light green, bentonitic SEale. Trace of argill~ceous Sil~stone. Shale as above but light grey, less bituminous. Trace of Siltstone. Trace of light green, bentonitic Shale. As above. Trace of Siltstoneo Reduced bentonitic Shale. Trace of Calcite. Shale as above, in part silty. Reduced fluorescence. ~ Trace of Siltstc~e. Trace of bentonitic Shale. Trece of poorly consolidated Sandstone. Trace of ~arcasite. -87- 1 rJ rl II [I 11 Cape Halkett 1~-2W-l 7490 7500 7570 7580 7590 I 7600 7610 [' l ' j' 76ôo 7645 7660 e Shale as above, with increased darker grey. Trace of light green, bento~ìtic Shale. Trace of Siltstone. Trace of fine Quartz Sandstone, with disseminated Pyrit.e. Shale as above, !'"lore d2.rk grey, irregular f!'2.ct1tre, mainly bloch0' although thin laminatæons are visible in some pieces. Shale h2.S an irregular fracture. LOST CIRCULATION. FOUR FAST FEET FRQI\~ ~554 TO 7558. !v1IXED AND Pur\~PED DOWN LOST CIRCULATION HATERIAL. FROM THIS POINT ON THE SP~KER WAS BYPASSED SO SAKPLES WERE CAUGHT WITH DIFFICULTY FROM THE TROUGH. NO RETURNS FROM 7500 TO 7560. Shale, dark grey, blocky. Siltstone, grey, hard, sandy, argillaceous. Sandstone, light grey, salt and pepper, Quartz and Chert grains, fine to medium, poorl:' sorted, poorlt consolidated, friable, very slightly calcareous, no shows. Shale, mainly dark grey, sUbbituminous. in part harder. Sandstone, grey, salt and pepper, Quartz and Chert grains, fine. sutJangular, well 80rted, well consolidated, very slightly calcareous, tight. Finely crystalline Pyrite. 5%. Shale, grey, with a slight bro'fmish tinge, to dark grey J blocky, showing a light cut with Chlorothene, 35%. Sandstone. grey, salt and pepper, very fine to fine, subangular, well consolidated, very slightly calcareous. no shows 0 Siltstone, grey, hard, argillê~ceous. Shale as above, grey to dark grey, rough texture, blocky. in part the grey Shale is silty, 30%. Siltstone, grey, hard, with ,rare scattered Chert grains, argillaceous. Sandstone as above, very fine to fine, 40%0 Shale as ~bove, 35%. Sandstone as above, ~airly well sorted. Siltstone, 15%. Sandstone as above, !'!lore poorly sorted, well consolidated, siliceous matrix, very slightly calcareous~ Trace of Pyrite. Sli.e-ht increase in Shale. 50%0 Sandstone as above, .30%0 Sil:tstone, 20%. Shale as above, with more soft, grey Shale, 45~. Sand- stone as above, 30%. Trace of Limestone, brovm, cr~~to- crystalline, finel~r brecci.a tE~d z.nd recemented, a Calcarenitpo ~race of dolomitic Ironstone. 7675 ... Shale I bro'l'mish-grey, r;rey and dark grey as above, 55^~. Sandstorre, 35%. Siltstone, grey to darker grey, !n%o ¡ . I -88- 1 II I¡ II Cape Balkett 1tt-2W-1 e 7690 7705 7720 II II 77Jß 7750 II IJ /1 7765 7780 7790 i' f ' /' 7800 Mainlv Siltstone. Small amount of Sandstone. Shale, in pa~t silty, 30%. Shale, as above, brovmish-grey to grey, soft, in part silty and Shale, dark grey, harder. Sil~stone, grey, hard, argillaceous, 15%. Trace of Sanèstone as abcve. Shale as above, showing very fine la~inations in part, with increased dark grey, 50%. Trace of smooth, chocolate- bro\~ Shaleø Sandstone as above, salt and pepper, fine, suban£ular, poorly sorted, hard, very slightly calcareous, 40%0 Siltstone as above. Shale as above, grey to dark grey, blocky to platy, in general more silty, 40%. Siltstone, light grey to grey, hard, argillaceous. Sandstone as above, 5%0 Shale as above. Trace of chocolate brovm Shaleo Silt- stone as above, but harder, more compact. Trace of Sandstone, salt and pepper, Quartz and Chert grains, fine, subangular, well sorted, well consolidated, siliceous matrix. Poor porosityo Faint brown stain, light bro\'m cut, yellowish-bro~~, fluorescence. Siltstone as above, grey to dark grey, indurated, argillaceous 0 Shale, grey to dark grey, in part silty. Trace of dark grey Shale, with a smoother texture and a brovmish streako Trace of a bluish-grey, subangular Chert nodule. Fragment of a rounded Chert pebble, yellowish- brovm Siltstcne as above, indurated, argillaceousø Shale, mostly dark grey, 30%. Trace of fine Sandstone showing fluorescence v!hen cui: with Chlorothene. Trace of lie;ht bluish-grey Chert nodules. Trace of smoky Chert fragments. Trace of Pyrite and pyritized worm casts. Siltstone as above, very hard, cleaner than above, with a slightly dolomitic matrix, 60%0 Shale, brovmish-grey and gre·" to dark e-rev, Dlatv, 80ft. The dark Shale is less silty and tiaš a"G8oothër texture~ Trace of Pyrite. TRIPPED AT 7820' p .... t· "r nIt::: c::: i 1 tC"!..... n-ra" - -np- to ~ Ve"-''' ..<>'; 1"'" C'a''''d- ..OSv r1.p So....J11, _0 ....1__ t.)\"'one, s,- \..L-....CoJ _~ _~ .l.......;.,~.. .-' ..!._... stone, light grey, salt 8;ldper·per, Quartz a!:; 1 Chert, subanc~lar, well sorted, very well consolidated, siliceous matrix, slightly dolo~itic. Trace of Siltstone, darl:: .7re"+ r.lore a.rf':"illaceous, hard . Siltstone. 2nd Sand- ··s+o.....'e~ r'~Oc'!. <::1-'>"'1 e ~d':\Y'k' .rn"ey rot'''''['' +1O'xtu-re 'D1 ock-v "'1"~ v .... J ::; ....... )""'.....c;;:._ ,', c.:::;,.". ~\ 0'" J -.' lE.c" v...... ~ .- I _ ....'" t,;:ì......____ ..",Sh2-1e, dar};: brol!:"Tlish-Crcy, s after, l.4'5!';. Trace of Calci ~e. Trace of finely crystalline Pyriteø -89- l I- i ¡ e Cape Halkett 16N-2W-1 7810 7820 r I 7830 J 7 all-a r I ~ I 7850 7860 7864 I ' l' r . r . r . /" e Increased Siltstone, v!i th more dark grey, atgillaceous. Shale, dark grey, carbonaceous and Shale, dark brownish- grey, softe~, 30%. Fr~~ent of a rounded, black Chert d 1m ^ ~ T. "a ~ ~ ..I- rr f m .Ç' f . b] no u e. ....rave 0.1. h rea..,.:. "e. _race 0 .LU.!. I pOSSl _e cavings. Siltstone as above, in part softer. Shale as above. Trace of light grey, beDtonitic Shale. Trace of Varcasite. Trace of Calcite. Trace of Tuff. ßs above. Siltstone, 60%, very hard. Shale, mostly blacl\:, blocky to platy, 40%0 Siltsto~e as above, grading to a very fine Sandstone, salt and pepper, hard, slightly dolomitic, 6o~~. Shale as above. As above. Shale 1 25%0 Trace of Calcite. Siltstone, hard as above. Shale, 30%. Trace of Calcite. Siltstone as above, in part darker grey, more argill- aceous. Shale as above, dark grey, grey and brovrrlish- grev. Bro~~ish-~ey Shale is soft, sli£htlv less silty than above: Trace of Calcite. ~ ~ DEPTH CCRREC~3J TO 7861. LOGG:SD AI':D S:5:T Il\TEm-ÆDIATE CAS IT,: G " "'" -90- f fJ [I [I f-¡ 11 7870 7880 7890 7900 7910 i 7970 7930 t' 7934 e e SAMPLE DESCRIPTIONS CAPE HALKETT # 1 NPR #4 BY MARVIN MANGUS Sample no good - contaminated and unable to get correct lithology - nothing but metal and up -hole lithology - pump trouble - even "pebble shale". Sample same as above - still dirty hole. Sample same as above - still dirty hole. Sample same as above - very contaminated. Siltstone and limestone- medium to light gray, siltstone calcareous and micaceous - limestone, light gray, silty to very fine grained. Sample still contaminated. Siltstone 10% - limestone 90%. Siltstone and limestone - siltstone, dark gray, slightly calcareous - 60% sample: limestone, medium gray to white sublithographic - arenaceous; min. plant material and fossiliferous - small bracmpods or Monotis sp grains angular to sub-angular. Limey - siltstone - medium gray - grains angular to sub- angular, carbonaceous matter (minor) still contamination. Silty - limestone - medium to light gray, silty to very fine grained. Angular to sub-angular. Trace of carbonaceous matter. Pyritic. ~ -91- 1 [-'I 7950 tl Il fl I] 7960 7970 7980 l-l I ì 7990 Î 8000 t' 8010 l L' t· 8020 I I ' e e Silty limestone - limestone: medium to light gray. Silty limestone 85%-90% - limestone, 10%. Fossiliferous. Grains angular to sub-angular. Silt - very fine grained. Limestone very fine to medium grained. Pyritic. Silty limestone - medium to light gray, silt - very fine grained, very fossilferous. Fossils appear to be Shublik Coquina - Monotis sp. and smooth pelecypods or Mis sissippian Pyritic. Silty limestone and shale - medium to light gray - siltstone medium grained. Very fossiliferous - about S% - shale. Much carbonaceous material. Grains rounded to angular and pyritic. Fossils still indeterminate - lean towards Shublik. Limestone - medium to light gray, very fine to medium grained sub-angular to angular. Very fossiliferous, pyritic and minor trace of carbonaceous matter. Silty limestone - limestone - medium gray to light silty to medium grained. Sub -angular to angular. aceous, micaceous and puritic. Very fos siliferous. quartz and calcite. gray - Carbon- Minor .- Siltstone - silty shale - siltstone light gray, angular, has dark angular grains. Silty shale about 100/0 sample. Fossils appear to be dropping out, but occasional fragment still (ribbed sp. ) Silty limestone - mediu~ to light gray - silt to very fine grained s. s. - well sorted. Fos siliferous. 10% siltstone - 90% limestone. Limestone and siltstone - light to medium gray, limestone silty- medium grained, fossiliferous. Siltstone luminated, medium gray and black - slight calcareous. Angular to sub-angular. "" Siltstone even grained. 10% siltstone, fossiliferous chert (minor). -92 - f [~¡ [J [1 8030 8040 8050 f! t J l! 8060 8070 I I 8080 8090 I 8100 8110 8120 r' [ l [ . to 8130 e e Sample same as above. Sample same as above. Siltstone - medium to dark gray laminated. Slightly calcareous and still fine 'Ipebble shale floaters" - slight cut. Siltstone angular, "salt and pepper", even sorted and angular to sub- round. Trace glauconite. Siltstone - silty limestone - dark to light gray. Siltstone, even grained, laxninated angular - 90% sample pyritic. Limestone, grains angular, quartzose and even grained. Silty to very . fine grained. Trace glauconite. Sample same as above. Shale - dark gray - clayey to silty. Shale - dark gray - clayey to silty. Silty limestone - medium gray - angular to round, "floating clear and gray quartz pebbles". Trace of glauconite. Same as above. .-. Siltstone and sandstone - siltstone medium gray, round grain - "floating" clear quartz grains, very calcareous - 20% sandstone, some trace of glauconite, sandstone well sorted. Trace of carbonaceous matter. Possible top of Sadlerochit Formation. Calcareous sandstone - medium to light gray, very fine to fine grained, very calcar eous -Angular to sub-round. Well sorted trace of glauconite and clear and gray "quartz grains". Some white limestone - carbonaceous matter. -oF -93- l~ r' r~ ~ I I r~ l C '¡,¡ .. [' t' l' f · L r e e 8140 Calcareous sandstone - light to medium gray, very fine to fine grained. Angular to sub-angular- slightly carbonaceous, trace glauconite, pyritic and some rounded I'quartz and chert grains II. 8150 Sample same as above - upper sandstone unit. 8160 Sample same as above - upper sandstone unit. 8170 Sandstone - clear quartz - medium to coarse grained - angular to sub-round. Calcareous and Kaolinitic cement - conglomeratic - chert smokey to dark gray - pyritic - trace calcareous shale. 8180 Sandstone - clear quartz - medium to coarse grained conglo- meration - Kaolinitic - traces calc. shale. 8200 Sandstone - same as above only iron stained - medium coarse grained - minor broken "chert pebbles" Friable. 8210 Sandstone - sample saxne as above - no congl. Friable. 8220 Sandstone - same as above-rusty, no congl. Friable. 8230 No sample over shaker - Friable - weathered Feldspar. 8240 Sandstone - same as above - not rusty - 50/0 medium gray, fine to medium grained limestone. Trace of shale - Friable weathered Feldspar (white). 8250 Sandstone - same as above - 50/0 shale calc. Friable, weathered Feldspar (white). 8260 Sandstone - clear quartz - medium and coarse grained - ., angular to subangular - white weather Feldspar - Friable - good porosity. 8270 Sandstone - clear quartz - medium to coarse grained. Less -94- 1 I~I \ .. I I I I J 8280 I 8290 I ì I , 8300 [ 8310 8320 8330 8340 I 8350 I 8360 8370 8380 I' 8390 8410 8420 8430 t' 8440 It e fine grained calcareous siltstone - very fine s. s. may be interbeds - Friable - weathered white Feldspar. Pyrite, shows. Sample same as above - s. s. in clusters. Sample same as above - trace of calc. siltstone and very fine grained s. s. - Friable - porosity. Sample same as above. Sample same as above. Sample same as above - conglomeratic - pyritic. Sample same as above - no shale - siltstone. Sample same as above - no shale or siltstone. Sample same as above - trace shale {5%}. Sample same as above. Sample same as above - trace calcareous siltstone and shale. Sample same as above - trace calcareous siltstone and shale. Sample as above - no shale and siltstone. Sample as above - 20% brick-red shale. Sample as above - 20% calc. dark gray shale - trace brick red shale. Sample poor - 600/0 sand, 20% shale, 20% silt. ... Sample mostly sand - trace dark gray shale - may be poor sample all individual sand grains. -95 - r r<'" í· I I I I' r' [ > W [ [ l- j. ). I I e e 8450 Sample same as above. 8460 Sample 30% sand - 600/0 calc. shale and siltstone. 8470 Sample sandstone - some congl. chert frags. 8480 Sandstone - fine to coarse grained, Kaolinitic, cong lomeratic has about 5% brick-red shale, 5% medium gray shale, Kaolin carbonaceous and micaceous. 8490 Sandstone - quartzitic - fine to coarse grained - Kaolinitic - angular to rounded poorly sorted - trace of calc. black shale and also brick-red shale. 8500 Sandstone - same as above. 8510 Sandstone - same as above - sloughing and have Monotis sp. in sample. 8520 Shale - Maroon, sericitic, traces of glauconite. Soft clayey to silty. May have some sandstone intercalcated with ito 8530 Shale - sample as above - 10% sandstone trace pyrite. 8540 Shale - sample as above - 10% sandstone trace pyrite. -.... 8550 Shale - Maroon, clayey to silty, some dark medium gray glauconitic shale. Less 5% light white to light gray shale sandstone inter -beds. 8560 Shale - Maroon, clayey to silty, also soapy light apple green shale. Some light gray to dark gray - micaceous, puritic sandstone still in samples. 8570 ..,., Sandstone - same as above - 20% maroon and light green shale, clayey to silty. -96- 1 ¡ I 1"1 l 8580 8590 8600 II 8610 8620 !'-' ! 8630 - 8640 8650 !' 8660 8670 I 8680 ¡ . 8690 e e Sandstone - same as above, also dark gray-medium gray shale - 10% - 5% apple green waxey shale - splintery or pencil fracture trace of maroon shale. Sandstone - same as above - 40% shale of various colors. Trace limestone. Sandstone - same Kaolinitic - 50% shale, medium gray, apple green and maroon. Some glaconitic calc. very fine grained s. s. - trace limestone darker shale calc. Sandstone - same Kaolinitic tight s. s. - 20% - 30% shale - variegated - trace of glauconite. Sandstone - white - Kaolinitic - fine to coarse grained 20% varicolored shale - maroon, gray, light and dark gray. Pyritic. Sandstone - white - frosted. Kaolinitic - very fine to medium grained. Glauconite - multi -colored shale st reaks - 10%. Trace white tuff. Sandstone - same as above only 10% medium gray shale, pyritic. ,,~ Slightly calc. Sandstone - same as above - varicolored shale 15% - Gray - slightly calc. Sandstone - same as above - silty. Sandstone - same as above - tuff micaceous and carbonaceous. Sandstone - same as above. "" Sandstone - same as above - 15% shale, some sand carbon fleckS'';;,'; .' -97- i e e r 8700 Sandstone - same as above - biotic and carbo flecks - 15% varicolored shales. rl \1 [I II 8710 Sandstone - same as before - about 40% shale, trace calc. medium gray silt. 8720 Sandstone - same as above - 40% shale tuff still existing. Trace calc. medium gray silt. Glauconite still present. 8730 Sandstone - same as above - 40% varicolored shale - white tuff. 8740 Shale and sandstone - light- medium gray, clayey to silic - trace siltstone - 10% sandstone, rare glauconite - some red shale. 1-1 8750 'J 8760 I W 8770 8780 8790 l' 8810 Shale and sandstone - same as above - sand 10%. Shale - light to medium gray, clayey to silty, sericitic. Shale - light to medium gray, clayey to silty, sericitic, very fine - fine grained calcareous siltstone. Shale - same as above. Dolomite - white to coarse grained, bioclastic, dead oil stains, cut, slight trace of glaconite porosity good in the fine grained dolomite. Dolomite - white, 60% massive white, 40% fine grained, bioclastic, dead oil stain, .cut intergranular porosity good in find, clusters, pyritic - very small trace of glaucomite. 8820 -Dolomite - 85% fine to medium grained granular, porosity ~fair - good cut, dead oil stain 5% the white mas sive dolomite, pyritic. -98- 1- r! l"j II lJ [] i ~ l \ e e 8830 Limestone and dolomitic limestone - light gray - white bioclastic, oil stained, good cut, pelletal, 950/0 Ims. - 5% dolomitic lms. oil stain around pellets - believe no net oil, porosity dropped off, grains - subround to round. 8840 Dolomitic limestone (bioclastic) and shale - sugary, fine grained, oil stained - 40% to 60% varicolored shale and silty limestone, maroon, green, light gray and dark gray calcerous silts - no porosity. 8850 Siltstone and shale - siltstone white, dolomitic, sharp - 60% to 40% vari colored, mottled shale - some free light translucent chert. 8860 Shale - dark to medium gray - clayey to silty. Minor maroon and green, trace of siliceous tuff or qtzite, occasional dolomitic. 8870 Shale - medium to darkgray - minor varied color shales of maroon and green. 8880 Shale - light to dark gray - same as above. 8890 Shale - medium to dark gray - same as above. 8900 Shale - Sandstone - medium gray - 700/0 shale and varicolored, sandstone - fine - coarse grained, poorly sorted calc. Some tuffs - poor sample. 8910 Shale - siltstone - vari-colored shales - light gray - dark gray, red and green clayey to silty - minor limestone with quartz grains - appears to be congl. 8920 shale and dolomite - 60% varicolored shale, clayey to silty, '" 40% silicified dolomite trace purtie, very rare glauconite. Some fractured chart pebble - samples hard to œtermine if congloxnerate is present. If so - probably minor streaks or pods, dead oil stain, cut fair. -99 - .., - 8930 Il Il !l Il 8940 8950 I I ! ¡ j t I ! r 8960 8980 8990 9000 I : I It 'I i It 9010 9020 9030 ..,.. 9040 9050 f r " ~. e e Dolimite and shal e - white translucent siliceous dolomite, varicolored shale - light gray to dark gray - green and red, clayey to silty trace calcareous fine green mediwn, sandstone - calcarons, trace white caro. tuff. Dead oil stain, cat. fair. Shale - varicolored, 60% medium, dar k gray - 200/0 red and green dolomite, trace glaconitic pelletic limestone. Trace pyritic and shale and pods of conglomerate (pods and lenses), dead oil stain (trace). Shale - mediwn dark gray, clayey to silty some silicons dolomite pebbles of glauconite and pyrite. Shale - medium to dark gray, traces of chert, calcareous, fine to medium grained, sandstone and lms. Limestone light gray, bioclastic, tight pelletal matrics. Silty - fine grained glauconitic. Limestone - same as above 80% - 70% medium gray, clay shale - trace of chert - probably conglomerate. Limestone and shale - fine to coarse grained,. bioclastic and sandy, sub-round to round trace of varicolored red and green shales - shale 80% sample - gray - clayey to silty - 20% chert - probably conglomerate. Limestone and shale - clayey - silty, varicolored maroon and green. Limestone bioclastic trace glauconite. Believe interbedded conglomerate pods. Chert up to 10% Limestone - shale - same as above. Limestone and shale - same as above. Limestone and shale - same as above, residual oil, dead. Limestone and shale - same as above. Limestone and shale - same as above - less shale - cherty. -100 - e e 9180 Limestone - light buff - bioclastic, pelletal about 30% shale, clayey to silty, trace of glauconite and pyrite. Trace anhydrite - dead oil. 9191 Limestone - light buff- fine to coarse grained, bioclastic - 80% shale - medium gray to varigated maroon and green - 5% chert translucent. 9200 Limestone - bioclastic, light buff - some c.arbonaceous matter, dead oil stain. Trace of glauconite, shale about 10%. 921Q Limestone - same as above. 9220 Limestone - medium to light gray fine grained, dead oil stained, clastic limestone. Variegated maroon - green shale - light to medium gray. 9240 Sandstone and limestone - sandstone - very fine grained trace chert pebbles, glauconitic purite. Dead oil stain, sandstone non-calc. - slightly calcareous. \ 9230 Limestone and sandstone - dead oil stain, clay shale sand grain in places, held toghether by dead oil. Shale slight - translucent, limestone. Shaley - clayey - silty. 9250 Limestone - light buff, bioclastic, dead oil stain, Shale light gray to green clayey to silty 40% shale. 9260 Limestone - buff, translucent, bio-clastic shale, trace glauconitic sandstone shale dropping. 9270 Limestone - light gray, bioclastic, shale - medium gray, clayey to silty, very fine - fine grained carbonaceous sandstone trace of milk chert - variegated maroon and green shale trace ..,. glauconite. Dead oil. -102- 1 e e 9440 ¡ ; [I IJ II 1\ Sandstone and shale - sandstone 90%, light gray, angular to sub -round - fine to coarse grained. Shale varicolored - cla yey to silty c onglome rate. 9450 Sandstone and shale - light apple green, fine to coarse, carbon. angular to sub-angular. Shales, clayey to silty, varicolored. Conglomerate - varicolored, sub-rounded - round pebbles. Trace pyrite and glauconite. 9460 Shale and sandstone - green clayey, minor silt, maroon. Shale 60%. Sandstone, light gray-green, very fine to medium coarse, angular, chert conglomerate, trace pyritic, glauconitic and quit e carbonaceous. 9470 Sandstone and shale - fine to coarse grained, angular to sub-round (60%) medium to dark brown. Shale - silty to shaley variegated, gray, brown, maroon and green. Pyritic, carbo and dead oil. Cong lomeratic. l 9480 Sandstone and shale and conglomerate - light to medium gray, fine coarse grain angular to sub-angular sandstone 80~o shale variegated. I 9490 Conglomerate, sandstbne, shale - quartz, pebbles and dark gray - black 60% sandstone, fine to coarse, angular to coar se grained, carbonaceous matter; shale light gray and variegated maroon and green. Clayey to silty. Trace pyrite and dead oil. 9500 Sandstone shale - light to medium gray - fine to coarse grained non calc. to calc. - carbonaceous shale - light to medium gray and light green - clay to silt (80% sandstone) trace of bioclåstic limestone. Trace of pyrite and calcite. 9510 Sandstone and shale - same as above. ., -105- 1 I I j II [ [: [ M \ ' i e e 9520 Shale and sandstone - 60% shale - light to medium gray, clayey to silty. Sandstone fine to coarse grained, angular to subround - carbonaceous s lightl y calc. 9530 Shale, sandstone, limestone and conglomerate - medium to dark gray - clayey to silty - 40% sandstone - very fine to coarse grained, light gray. Dead oil; limestone, light gray coarsly crystalline - trace pyrite congl. varicolored chert pebbles 10% . 9540 . Sample same as above. 9550 Conglomerate, shale, s. s. - 60% congl. white and black chert; shale - variegated It. gray, maroon and green, s. s. - It. gr. angular to sub-round - fine to coarse grained - trace pyrite. Dead oil stain. 9560 Sandstone and shale - same as above, some minor conglomerate and bioclastic limestone - trace of glauconite. 9570 Shale and sandstone - variegated gray, green and maroon - clayey to silty shales (60%) sand stone - medium gray, fine grained, angular to sub -angular - carbonaceous. Dead oil and trace of glauconite and congl. 9580 Sandstone - shale - medium gray, fine to coarse grained, angular and sub -angular, carbonaceous, laminated. Shale, variegated It. gray, green and black. Traces of chert and quartzite conglomerate. ' 9590 Sandstone and shale - same as above. 9600 Sandstone and shale - 30% shale - congomerate gray and green shale. s. s. - It. to medium grained. Non to very calc. """ 9610 Sandstone and shale - 60% s. s. - 40 % shale. Chert pebbles. White to It. gray and black. -106 - f ¡~\ 11 \"1 \1 [I i e e 9620 Sandstone - shale and conglomerate - same as above. 9630 Shale and sandstone - congl. same as above - 70% shale. Conglomerate pebbles - It. smokey gray to white chert shales sericitic and a littlð phyllitic. 9640 Shale and sandstone - 70% she - It. to dark gray, minor traces of maroon and green. Sandstone medium gray - very fine grained - carbonaceous dead oil stain. Trace of chert pebbles, white - smokey gray. 9650 Lirnestone and shale - 50% bioclastic limestone, buff to translucent shale, clayey to silty - variegated gray, green, maroon and black. Hard silicious - very fine grained s. s. trace conglomerate, glauconite. Dead oil. 9660 Limestone and shale - conglomerate - same as above. 9670 Shale and limestone - conglomeratic - maroon and green and black shales. Limestone bioclastic. Dead oil. Trace pyrite and glauconitic. 9680 Shale - limestone - sandstone - sample same as above. 9690 Shale - limestone - sandstone - about 50% shale. 40% lms. iO% s. s. - shale, clayey to silty, It. medium gray, black green and maroon. Limestone bioclastic, dead oil, very fine to coarse grained. Sandstone very fine to coarse angular to sub-angular laminated. Non-very calcareous. Trace pyrite and glauconite. 9700 Shale - limestone and sandstone - more black shale than usual - sample same as above. 9710 ...shale - limestone, siltstone - It. gray - black, variegated maroon and green. (60%) - limestone buff bioclastic siltstone - carbonaceous medium to dark gray. Trace glauconite. 9720 Shale, Ims, siltston.e - same as above - shales phyllitic. -107- f r I r! II ¡j tJ 9730 9740 9750 9760 9770 [ 9780 i 9790 9800 [ I- I 9910 e e Shale, lmso , siltstone - same as above more black, carbo shale - 80%. Shale - 1ms - 80% dark gray to black shale, trace phyilite. Shale - 1ms. - 80% dark gray to black shale, clayey - silty. Streaks of sandstone bioclastic, buff Ims. Trace pyrite sandstone - non to very calcareous. Shale - Ims. - same as above, chert and qtz. pebbles, some shales phyllitic and sericitic. Shale - limestone - 70% shale. 30% Ims. - buff, bioclastic chert pebble. Maroon shale and siltstone. Streaks of dark gray, non-calc. laminated s. s. - shales partially phyllitic. Shale - lirnestone - same as above sample. Minor phyllitic shales. Shale and limestone - 60% shale, variegated grays, blacks, red and green. Clayey to silty. Limestone, buff bioclastic. Dead oil - trace dark gray - black laminated å-nd non laminate. s. s. trace glauconite and pyrite - s. s. very fine to coarse grained, carbonaceous. Limestone and shale - limestone buff to medium gray, dead oil. Shale - varicolored grays - black, maroon and green. Clayey to silty. Traces of conglomerate. Trace of dark gray to black. - very fine to coarse grained s. s. Shales - Ims - 70% shale - buff to light gray. Shale varicolored grays, black maroon and green. Dead oil. Trace of pyrite. Carbonaceous. ..¡r -108- i ¡~: I r 9820 l l. ¡ . 9830 9840 9850 9860 t. 9870 M 9990 l 9900 e e Shale - limestone - 80% shale - medium to dark gray, variegated maroon and green. Clayey to silty. Lms- buff - med. gray, bioclastic, dead oil. Trace black - very fine grained, slightly to non calcareous s. s. - trace of conglomerate - smokey gray, black and white chert, trace pyrite. Same as above - shales with minor "phyllitic". Sample same as above. Shale and limestone - 60% shale - 40% Ims. Sample same as above. Sandstone - med. dark gray, very fine to fine grained, carbonaceous - angular to sub-rounded - minor gray clayey to silty shale - s. s. slightly calcareous. Siltstone and limestone - It. to medium gray, very fine to medium grained. Carbonaceous siltstone dark gray. Non to slightly calcareous shale 15% - medium gray to black, clayey to silty. Sandstone - siltstone - same as above - carbonaceous - non to slightly calcareous. Trace of quartz - bioclastic white limestone shale, - 10% - It to medium gray, black and maroon, silty to clayey shale. Phyllitic shale. Argillite - black silty, quartz veinings - very fine grained black shales, fissile, shinning. .." -109- Cape Halkett Well . . \00- \D\ Subject: Cape Halkett Well From: Thomas Maunder <tom_maunder@admin.state.ak.us> Date: Wed, 10 Mar 200410:55:11 -0900 To: Stan Porhola <Stan_Porhola@ak.blm.gov> Stan, I did locate (with help) our file on the well. There is a mud log in the file and notes regarding other logs. I have not checked on the other logs. I do not see any operations information. On the mud log, the hole and casing sizes are given: unknown hole size with 20" casing @ 494' 18-12" hole to 2414', 16" casing @ 2410' 12-1/4" hole to 7864', 9-5/8" casing @ 7841' 8-1/2" hole to TD of 9900' Did you have this information?? Tom g)CANNEl!" MAlt 1 2 2004 1 of 1 3/11/20043:24 PM f' '" . TONY KNOWLES, GOVERNOR STATE PIPELISE COORDISATOR·S OFFICE . Department of Environmental Conservation = Department of Natural Resources = Department of Fish and Game J" wEST Jth AVENUE. SUITE 2C "'NCHORAGE. ALASKA 99501 "HONE: :9071 273-3594 19071 278-3595 =AX: 1907) 272.0090 January 13. 1995 o~,o , Letter ~o. 94-28-DT.BL\1 File No. 300.15.198 CERTIFIED :\lA1L RETCR.~ RECEIPT REQUESTED :\1r. Tom :\llen. State Director Bureau of Land :\lanagemem _-\laska S tate Office .::: \V_ 7th .-\\"enue. Suite l3 .-\nchorage. .-\laska 99513 .vIr. Jim Devine. .-\ssociate Director USGS 106 0iaticnal Cemer- Reston. V.-\ ::092 Dear :\1essrs. .-\llen and Devine: Re: BL),1:TSGS :rractive Driiling Waste Disposal Facility Closures - ~umer-ous Inactive Sites The .-\laska Department of Environmental (ADECì has received and completed its review of your submirred documems requesting approval for closure of BLM/CSGS Drilling Waste Disposal Faciiities on [he ~onh Slope in the ~ational Petroieum Preserve Alaska. These sites have been reviewed in accordance with the ADEC Interim Site Assessment Guidance ['or Inactive Drilling Waste Sites. June 1991. A site visit was made in August 1994 to those sites that rece~ved public comments during the closure public notice period: Cape Halkett. East Teshekpuk No.1. Ikpikpuk No.1. East Simpson No.1. and East Simpson ~o. 2. The correspondence describes our review procedures. puts forward the depamnent's fmdings. and takes acÜon upon the request to close numerous sites. Currently, the second draft of Alaska's new Solid Waste Regulations. 18.AAC 60. are under review. and this second draft contains a chapter on Inactive Reserve Pit closures. The closure criteria in this proposed regulation parallels the c:osure criteria in the 1991 Guidance Document. Closure under the 1991 Guidance Document should constitute closure under the proposed Solid Waste Regulations iÌ they are adopted as current drafted. . ; - ,'-' J . ~ ... 'j-~ ,::23 ·.'<J~S. ~:n?~~j:~> ~nrl;¡~~"'" . . . , \lessrs. Allen and Devine January 13. 1995 BL.\l/USGS Inactive Drilling Waste Disposal Facility Closure Approval The Review Procedure The qualitative risk sí:reening procedure reauired in the above referenced document determmes whether a site presents negligible levels or' risk. cr if it is a significant risk generator. A decision scheme is then emDloved to establish ( 1) whether or not there is a - . . basis or' concern. and (2) -'Nhether or not a waste site is likely to present signirïcant risk to human or environmental receDtors. The rÎrst step in this screeiling criteria is establishing a basis of concern: "If the waste site has released contaminants or there are mechanism for potential releases and [here are receptors nearby. theil. there may be cause for concern. and the waste site should De studied further.' and 'If there is no release or' contaminatlon or no mechanisms for :otennai releases and there are no receptors nearoy. chen [here is not a basis r'or í:oncern and the '.vaste site should be considered closed." The criteria that J.re measured J.t :.l waste SIte to satisfy the J.Dove logical arguments are: E'/idence or' release or' chemic:li .::ontamination at the waste site in excess of Alaska Water Quality Standards for one or more target compounds. or \lechanism for potemiai release. J.nd Proximity of the waste site to biological receptors. If either of the tïrst two criteria and the last criteria are met. there is a basis for concern. and before proceeding with Step 2. a corrective action plan shall be prepared for the site which shall identify alternatlve ways to correct or mitigate the basis of concern. prevent its recurrence. and select a preferred approach. Corrective action alternatives shall be described at a conceptual level. and the seiection of a preferred approach shall be based on balancing protectiveness with imDlementabilitv and cost-effectiveness. . . The second step determines whether contamination at a waste site present a risk to receptors that is significant. If risk is found not to be significant. it is considered to be "negligible." The tïnding or signirîc:lnt risk is based on the likelihood of exposure and the likelihood of adverse consequences of exposure: 2 · -- \Iessrs. A.lkn Jnd Devine January 13. 1995 BL).,LTSGS lnacti'."e Drilling \Vasre DisDosai Facility Closure .c..pproval 'For rIsk (0 be considered sigmrïcJ.nt. [he receptors must be vulnerable [0 exposure. and the consequences of exposure must be . Jdverse· to human or animal health or the environment." :md. conversely ,'If exposure is unlikely or the consequences of exposure Jre not 'adverse.' chen the rIsk is negligible. If risk at a waste site is si"gmïciam. then corrective action should be raken. The criteria that are measured at a waste site to satisfy the logical arguments above are: Exposure Criteria: Receptor exposure 15 consIdered to ce likely when: Contammant :-elease mechJmsms are judged significant .Jr Containment mIgration is judged signirïcam. or One or :nore comammants :lre environmentally perSISrerlt. If exposure is found to be unlikely. :l tinding of ile~ligible risk is made on [he oasis of lbse::ce;f' 1 like!y eXDOSt.:.,~ item and the action plan is evaluated under the ImpacuBenefit Evaluation step. The pUI1Jose of this step is to determine whether the benerÏts of taking a corrective action would be ~reater than the impacts of taking such a corrective action. If emy one of the exposure criteria Jre satisfied. a tïnding is made that exposure is likely. Funher screening continues to evaluate Consequence Criteria. Consequence Criteria: A.dverse ccmseauerlces of exposure (0 contammants from reserve pits are consIdered to oe like!v '.vhen: (a) The durarion or frequency of exposure is sufficient to cause adverse health and environmenul effects. This is è'ialuated by reviewing human and wildlife use panerns at a given waste site. waste site accessibility. and ground and surface water uses: and either (b) The quamity or concentration of one or more contaminants exceeds peninent federal or state water quality criteria or standards protecting health and; or the environment. .\'leasured contaminant concentrations in the warer will be compared with health and environmental standards Jnd criteria for each target contaminant. to identify exceedances. When only human populations are at risk. health criteria are used. When only populations at risk .:lre nonhuman (e.g.. fish. wlidlife. vegeution). environmental cnteria and standards are used: or 3 ,1 '-"~4 '!Ïf'nrr~""!": -- . .\lessrs. Allen and Devine January 13. 1995 BL~1/üSGS Inacnve Drilling Waste Disposal Facility Closure Approval lC) One or more contammants exÌubit high acute toxicity. The NIOSH toxicity rating system (NIOSH 19ì 4.) wiìl be used to identIfy contaminants highly toxic to mammals. This :nformation '.vill be used to deter:nine whether 3. target compound exhibits acute high LOXICitv . If the duration and frequency term is insufficient to cause adverse effects. there is no need to ç:valuate the other two consequenc~ criteria. 3.nd a finding of negligible risk is made. If the dur:ltion and frequency term IS sufficiem. but neither of the other two consequence criteria are met. 3. rinding of negligible nsk is made. The action plan is then evaluated under the ImpactJBenerit Evaluation steD, If the duration and frequency of ;;xposure is determined to be sufficiem :0 ::lUse ::J.dverse :::~"fects and either of the OL'1er :',\:o consequence criteria are satisried. then a rïnding is made :hat ::J.dverse consequences :lre :i:-ceiy. J.nd the r:sk at a '.vasre site is saId :0 be sigmIÏc::mt. If :he screening indic:ltes that rISk :s sIgmrïcant. then the responsible parry shall proceed with implementanons of corre':tlve ::J.ct:ons. Sites Considered For Closure Based upon the above referenced criteria from the June 1991 INTERIM SITE .-\SSESSMENT GUIDANCE FOR INACTIVE DRILLING WASTE SITES. 23 Wellsites have been reviewed for closure: The decision to gram closure approval on these sites is based in part on a review of the inactive drilling waste site assessmem documents listed below which you have submitted by .-\DEC. site visits during August 1994. :lnd the February 25. 1994 CSGS document that ;Jrovides technical response to public commems on these sires. Title: Environmemal Starns of :3 Oil & Gas Exploration Areas of ODeration In the National Petroleum Reserve-Alaska. December 1992 Support Documents: BL~1!rSGS Video-documentation of Site Visits. Water Qualitv. and Soil .-\ssessment :\t 28 Exploratorv Wellsites In the National Petroleum Reserve In Alaska 1989-90. (USGS Open File Report 91-458 Parts 1 & 2), USGS Professional Paper 1399 with Associated Plates ~ · .. \kssrs. .-\llen and Devme January 13. 1995 BL\f. CSGS Inactive Drilling \Vaste Disposal Facility Closure Approval Submitting Person: Dick Dworsky. Ice Dygas. BL;-,l (.-\laska¡ Covered Facilities: :3 areas r:r' operation utilized for nil and Q:3.S eXDloration (we!lsÎtes) in ~PRA. Synopsis of Closure Procedure: \"0 run:her action ~s :-:eeded for the dr1ìlin!! waste facilities 3.tthese sItes. ;:xceN :is noted beiow CLOSt"RE A.PPROVALS Dè8:lr::mem's decision upon thr -:;:osure :lpplication submmed by the Bureau of Land .\ {anagemem and the C, S. Geoiogical Survey is to approve the below listed drilling waste f:lciliry sires. effective hnuary 1::. 1995, Cpon re'/iew or' the submitted sample results ~eCUlre:J. under the 1991 Guidance. -:;~rtain remote sires exhibited metal concemrations and :lydrccJ.roons in the reser.'e put surÙce waters and downgradiem waters in excess of the .-\laskJ. Drinking \Vater Standards and .-\laska Water Quality Criteria (A WQC). \Vhile there :5 J. caSlS ror conceiT: ~'or those 5ltes ·.vnere exceedances occurred. there is J.lso negible risk. clnd :my corrective JC:lOn \varr:mred J.t these ¡-emote sites '.vould nor be required. realizing that the impact of the correctlve :lcÙon would be much gre:lter than the benefits received. These sites for the most pan: b.ave revegerated. and :my corrective acrion measures impie:___.___": ''vould impact the estabiished piam species :.H these sites. These sires are Closed .-\5 Is. T:l.ere are cerw.m sires \vne~e correc:ive ac:ion 15 warranted. however, and Conditional Closure is granted. provided the correcÙve acÙon stipulations described are compiered to the department's satisfaction. CLOSED AS IS Ati~aru 0' 10"'\- Awuna ð-IS"} Cape Halkett O· JOt Drew Point O· ~ 8 East Simpson ~o. 1 O· 2,.0 I East Simpson ~o. 2 o-'2..Q3 Ikpikpuk ~o. 1 c- 2..00 Inigok 0- '" ~ J. \V. Dalton 0·2.02- Koluktak. 0-12.-5' Kugrua 0 - ) c;-s- Kuvanank 0- 15".it Lisburne O· 14~ ~orth Inigok 0- lo'ð :\orth Kalikpik O' JOt Pearà c- 2-2.1- Seabee O' "2-2-3 South Harrison 0 - 0 3 South :\Ieade o' /5"4- South Simpson o· ~i Tulageak ó - 0 -"t 1 Tunalik 0-22..S"" \Valaka ~o. 1 0- 04 z.... \Valaka :\0. 2 o· o"\-& \Vest Dease 0'043 \Vest Fish Creek 0- ¡oS \V. T. Foran O' Jo(,. 5 -- . )'lessrs, .-\llen and Devine January 13, 1995 BL).1!CSGS Inactive Drilling Waste Disposal Facility Closure Approval CO:\"DIIION,.\LL Y CLOSED The following closure conditions were placed on the site r"oìlowmg the site vIsit/closure package evaluation, A plan proposal to meet the conditions descnbed below should be submitted to the deparunent for approvaL prior to undertaking any corrective :lction. Once these conditions, have been met at the site. it wiil be considered CLOSED. : East T eshekpuk 0 . \ 0 2... Remove any SCI'Jp metals that have been uncovered by the lake erosion imo the north end of the pad Prepare alternative plans to attempt to stabilize the exposed drilling mud at the north end of ~he pad in order to prevem further erOSlOn imo the reserve pit and subsequent leaching into LJ.ke T eshekpuk \lonitor site visually for a period of 5 years to ensure non-release of mud TER.\lS .-\....'lD CONDITIONS Tnese closure approvals are subject to the rollowing terms and conditions: FL"LL SITE CLOSLlŒ: The approval granted by this letter is for the inactive drilling waste sites only. as required under 18 .-\AC 60.500 (dì. Closure ror the pad as a whole must be coordinated between the owner:operator and the appropriate state lADNR. .-\DF&G. .-\OGCCì, or federal (BL'A) 1gency. .-\dditionally. should :my comarnmarion ['rom hisLOric spiils be found on the pad oULSlde the drilling \vaste site (reserve pit area). notitÏc:.ltlon needs to be made to the .-\DEC'PCRO Contaminated Sites Section (271-4.399). :-.rE"\V NFOR..vlATION: Should additional iIlÌonnation concerning environmental conditions at the facility make further actions necessary to protect human health or the environment. the Department reserves the rig:ht to reauire additional investig:ation. assessment. monitoring:. or remediation - "'- - - at the facility. 6 . . :'Iessrs. .-\llen and Devine January 13. 1995 BL~I!CSGS Inactive Drilling Waste Disposal Facility Closure Approval DCTY TO RESPO~l): .'\iotwithstanding any other provisions or requirements or this closure approval. a person ..:ausmg or permitting the discharge or oil or other hazardous substances is required by law to immediately contain and clean-up the discharge. ¡AS -+6.04.020: -+6.09.020). CO:\lPLL~'iCE 'VITH APPLICABLE LA \VS: If amendments to this closure :J.pproval are necessary to meet the requirements of any new laws or regularioI15. the raciìiry owner:operator must submit an application for amendment to the DepartInent at the above address. The faciiiry owner:operator must adhere w all :.ippìicable state statutes :md æguìaÜons :.is they may ce amended from time to time. If :.íJU have :my quesIlons. ;:-;ease do nor :lesnare to ":Jntact Tim Ll\V :lE 271--+051 of this ùr1ïce. ~e¡y. . ',~4 //-/~ ~LZ~//'~ :----------Tom Chapple // ADEC Regional Administrawr Pipeline Corridor Region -:-::::::RT'''' ,?eRC 0: ~omc\baxcr:".1..:8) cc: John Santora. BL1-1/JPO D. Dworski. J. Dygas. BL~IIAnchorage K. :'lueller. CSF&WS/Fairbanks Jerry Brossia. .-\~DR/SPCO )Taney Welch. .-\DNR/Fairbanks Al Otto ADF&G/Fairbanks Glenn Miller. Doug Bauer. ADEC/Juneau Jim Haynes. A.DNR/Anchorage Jessie Ka1eak. Sr.. .\-layor ~SB. Barrow Pam Miller. The Wilderness Society/Anchorage Larry Landry. )¡orthern Alaska Environmental Center/Fairbanks i . . 1/ " LðvV~ V'" . k: i 'n!1fLk Thickness ~nd-Shale_ feet Meters .. Ratto ¡Oo-/~ Atigaru Point-1 , .. 750 229 <1/16 IOD-~ South Barrow 3 748 228 n.d.* ,oo-03"Y- ~South Barrow 13 187 57 1/8.4 IÞo-öl.{þ South Barrow· 17 503 153 1/3.2 iôP-/OI Cape HaJkett 1 178 54: <1/16 10ú-cLl3 West Dease 1 431 131-- 1/8 /ÞCJ-,,,t Drew Point 1 71 22 1/16 100 -'00 West fish Creek 1 252 77 <1/16 IOU -10'3 South Harri son Bay 1 667 203 <1/16 ioo-ø.,. lko Bay 1 643 196 1/3.9 ¡fXJ-i}oo lkpikpuk 1 580 177 1/16 loo..ffl In.i gok 1 150 46 <1/16 I Ob-It/fJ North Inigok 1 136 41 1/11.4 100 -tS"S- Kugrua 1 616 188 <1/16 lOO--lsc. Kuyanak 1 587 179 1/11.2 luC,-/Yi Lisburne 1 ,(1) 100 -1St! South Meade 1 714 218 1/7 IOC:p,~ Peard 1·- 205 63 <1/16 100 -1":3 Simpson 1 520 159 <1/16 lO()..aol East Simpson 1 282 86 1/16 lOO~ East Simpson 2 87 27 1/8 ¡IX>...~ South Simpson 1 814 248 <1/16 .! ¡ 0() -t6~ East Teshekpuk 1 1.038 316 <1/16 ¡ðO-~S- Topagoruk 1 782 238 1/16 ICb-:tnT Tulageak 1 812 248 1/9.1 ¡OO-~~~ TUAa1ik 1 140 43 <1/16 ID6-ott';)Wa\akpa 1 640 195 1/7.7 1000-oC{~Wal·akpa 2 613 187 ll7. 7 *n.d.. not detenmined. Unit J-l. which contains the reservoir -Barrow sandstone" in the Barrow area. lies unconformably on TR-3 and is restricted to the northern part. of the NPRA. J-l is Early-Middle(?) Jurassic and coincides with foraminifera1 zones F-17 and F-18 (Anderson. Warren" and Associates. 1974-1919). .. The thickness ~ of J-l is re1ated to its truncation by the overlying aid-Jurassic and basal -Pebble Shale- unconformities. The thickest section penetrated is 1.038 ft (316 m) thick at East Teshekpuk I. this section extends to the west and parallels the Barrow Arch. Northward. toward the Barrow High and the Barrow Arch, unit "-1, is progressively truncated by the basal ·Pebble Shale- unconfona1ty. In the eastern half of the NPRA. the m1d-Jurassic unconfonaity deeply truncates .I-I toward the southeast; .I-I thickness ranges from 580 ft (177 m) at Ikpikpuk 1 ~o 136 ft.(4Z m) .at North Inigok 1. ' ~...- ". . .., I . - . In the western half of the Reserve. trUncation by the båsal -Pebble Shale- unconfot'lll1ty is more gradual. and 140 ft (43 m) of .I-I is present at Tunal1lcl.¡ The·~)iiid:"Ju,rassic unconformity probably truncates .I-I . ,. .cCIIIIPletel~.~.ift.anèast-westdirection across the IIi ddleof the HPRA. '\-'c:'::::__:'-~':_'~-:":'-:7_' -;-> ~~:':,:':~-;'---'''_~':':~' ~::..:.- -..:2~~_:.~.>_;:_,~-.;:~_~·:· -,: ~_~~:_.._,_._ ,u_ . :.: _ '." _ :'-~-, ':' - _ _ _ _. ____ _ _ _"'_ _ ,. _ _ _ _ _ _ : '"--IT ·,-<,,:-t',-,-- -"Uífft"'a;.l ~co-ns-tsts':"of--~ëiêffciHj-''---depo$i--tect ~hale-iln1ts-that-coå..sen--·upWIH- . ,... into;si1tstone or sandstone. The only econOllica11y important sandstone in ,"-1 is the -Barrow sandstone.- The unit becomes increasingly arg111aeeous toward the south. away frOll the Barrow area. At South Meade 1.. I sand-shale ratio of 1 to 7 probably denotes the southern 11l1it of any , .. potential reservoir rock in .I-I. ~ - :.~0:~:"::~~~:::;:~ . '= .=ë_:·,_~::::. ~?::_~~!-:~-..::,;.:.:::.::-;:-~__.._ ~~~ ~ _ =- ~ -~~_ ___~~_~, ~_ . .J~ -~-'.' -~".-=.""'-..-,~-""'- I I J I l ,.:_, .~ ...'"';;, <t-l . --, [ I I J I J J ] ] J --~] . '/"'~;{r, '<.¡WAE 50 ':""':"'. >~jRI¡;¿1'" S-S. +- Othé ,~'-,,', " - .' ISOPACH AND LITHOfACIES ,MAP, TR-3b . ~:;' :~~~:~';d~;~~¿~!{~~f~i~,::: ;~;';',;":_<:' "-.' . , ':- -.2.:;.:,:;'>~:,~t.._.';" ',';_:' ~?~'·=.é~.~;~i;~:;>>< . . ;..~ ";:;~-- ;-~;,¿~;yn~-~ ~:" . /.:~';. ". ..-. Sand-Shale Ratio ,-) -,,: ~,,-;;'< '- .- " ~ 'c::~~~,~::~~~=S~~¥",2j~~']ì~J{~':,t~: ..... ./oo..:cai South Barrow'13h,· ''SO'· 15 . I öi>-(;¡lØ' South Barrow 17.· "', 80 24 iÞ()..o(,fJ.':", Cape Ka 1 kett;-:l-',:, ,. ,131,'- 40 1~Ã~l- ~::~ ~:~:~:t~v~~-~l"";:;:i:-_:)Jt~~:f¿{ :.; ...< -(t.Ö"'¡Ol::( West Fish-,Creek- 1<....~:i:. 36.;: 11< . ìbv-103" South Harrt_s~n~8aY 1}"-~¡ 54,~ 11¿ ..·!-·t~¿~'~::i~k~t'ry,i;;,: -,"2. ;r~~~'j~-~~'·,·~' "-~~':', 106-~ Inigole 1 . ,', 44 13 tOO-tO" North Inigole-l 93 28 ¡ 00 -'S$' Kugrua 1 132 40 10(,) -15(, lCuyanale 1 132 40 /O()-I<{'î lisburne 1 ',' (1) Oú-Is<{ South Meade 1 122 37 100 -~c. Peard 1 216 66 IO~-1l;3 SimpsonH·l --, '- 116 35 /cb-~I East Simpson 1 151 48 t tó -~03 East Simpson 2 154 41 ICO-I~ South Simpson 1 143 44 /00-/6';).. East Teshekpuk 1 129 39 10()- #'is" Topagoruk 1 150 46 loo-otrrTulageak 1 111 36 1()()-J~~T..na1ik 1 88 21 10ó-d1:J. Walakpa 1 126 38 loc-04~ Walakpa 2 141 45 J~-GßI Sinclair Colville 46 14 Arco Itkillik River 1 74 23 3.4 '" 1.8 >1/8 1.4 1.6 1.8 3.,9 - >8 . '1/1.2 3.1 1.6 <1/8 1/5.2 2 4.8 1.2: 1.8 2.1 2.3 3.0 2.6·j 1/1.3 1.1 2.0 <1/8 2.86 2.3 > '- f' "'.' ~ ~ .. .. þ . ~ II[ n.d.* <1/8 *n.d.. not determined. ,.-.", In the northern part of the HPRA, Unit TR-3b contains the Sag River Sandstone. The unit ranges in thickness from 216 ft (66 m) at peard 1 to 36 ft (11 m) at West Fish Creek 1. with the thickest development just south of and parallel to the Barrow High. The unit thins toward the south across the Reserve - and probably is present only in the northern half of the NPM. In the Barrow area, TR~3b thins toward the north where it onlaps the Barrow High. East of Dease Inlet. the basal "Pebble Shale" unconformity truncates TR-3b. Near Dease Inlet. TR-3b appears to thi cleen toward the north-northeast. and it f s uncertai n whether truncation or onlap occurs. Unit TR-3b is the ·cleànest- stratigraphic unit dr11 led to date on the Reserve. The sandstone lithofacies of the Sag River is restricted to the ,northern part of the NPRA where it is a sheetliké s.nd þl"obab11 conshtfng of, a ser'esof over.]apping bars._ Ihe--un-1t' becOIIIes . increasingly silty tow.ret. the west and .... south. ·~-rn the Barrow area. TR-3b consistS'.,!tJi_stone_lIId.~~:shore·fÎc1es of glauconitic, shellY sandston~s. sU~stones;;':_:...shales.· ~,-~/~::; :,~~l'::-:~::: -.:¿~; '~Ir:;~~:- - " "'~~~~~:'.B;t;¿;;:r~{';/1:~:' 1t~;.(-::~:~-,_.~.;«:~- ~.:--- ~,:-{~ - '. . "~n~~-" ,t1o~,"indicite~;:twO;areas of 'partly overlapping ba,.Uke cC»IPfexes.'~f2::;Jhe':,best'i:ii:developed . area 1s in the northwestern NPRA. 'êxtending',.fro.SOuth'Barrowll in the north, to Peard 1 and KIIgrua 1 to the: southwest. . to Drew Point, 1 to the northeast. The second are. of gOod"sand devetopaìent tsassociated with the F1sh Creele Pl.tforll. A thitd., SlN11er 'aria of sand. located at Ikpikpuk 1 may be an . ,,,'" of; the,. Ftsh cr,-~~, u~~atforøl bar or. an reDre- c'~~la~!.OIt ~:,:'~~<;,:.;"< " ";'''~'>0'':: .....(.,. .>Y-', . ~. - -". ..",. ¥,~ '-' . '.IG IN W EST BASED ON SEISMIC ~PHIC INTERPRETATION. , ..J.S~~ Cf L·.J..J- L' ' net¡:> TR'-3b r"no r"'-c::..(f?-s C C_)JI11rL....'h.s S Q.. D. C""') . ~ 1\!Ve.1'" 0$. \ - 7~~~~~L ~. (~ ~ , 't II J?a.. 11"f'- ÇNo. ~~oo) 19"i1' F I !J ~ ç''() :z.. + + + + CHUKCHI . .... .~... ,".... .l!'''--'' I I f , I -1···-1 I i qGU~E 71 · . , i I I POTENTIAL RESERVOIR AND AVERAGE POROSITY MAP PF SAG RIVER SANDSTONE I I -_._---------._.,_._~_.- .....- ~..- ,.._- Well 'Thi ckness Average Porosity ., Feet Meters (pe rcent ) ------- --------.- 1Oó-/0I.( A~igaru Point 1 90 27 16 100-101 Cape Halkett 1 30 9 15 100-0'13 W!st Dease 1 83 25 18 IO()-I'\~ Drew Poi nt 1 85 ~6 15 /(Jt.>-/~ West Fi sh Creek 1 36 H 12 I()D -IÞ"3 South Harri son Bay 1 53 16 15 IOO-;)($) Ikpi kpuk 1 31 9 7.3 100-/~-Kugrua 1 107 33 9.6 1()O-/51.,. Kuyanak 1 107 33 16 I()CJ-~ South Meade 1 66 20 14 100 -00(.. Pea rd 1 135 41 8.5 IOb-/(,3 Simpson 1 105 32 18 /OO-dol East Simpson 1 141 43 22 ¡4()-Q03 East Simpson 2 154 47 18 100-111- South Si mpson 1 143 44 17 IOO-~ East Teshekpuk 1 87 27 10 1000-I"i5""Topagoruk 1 89 27 14 IOO-øv;.Tu 1 ageak 1 75 23 18 1000-dI:J Wa 1 akpa 1 61 19 18 J()o~fKWa 1 akpa 2 80 24 16 1~-tß( Sinclair Colville 1 43 13 19 --- The Sag River Sandstone is the sandstone lithofacies of the TR-3b parastratigraphic unit. The rocks are Late Triassic to Early Jurassic and are .restricted to the northern half of the Reserve. The Sag River Sandstone is a sheetlike sand body that probably consists of a series of overlapping bar5. The lithology is typically light-greenish-gray glauconitic ca 1 careous sandstone. The Sag River Sandstone becomes increasingly silty toward the south and west. At Inigok 1 and Tunalik 1, laterally equivalent siltstone and shales are present. The Sag River Sandstone also grades into equivalent calcareous and glauconitic siltstones, shales, and silty sandstones on the Barrow High. Porosity within the unit is very good in wells drilled on the Reserve. The lowest porosity, 7.3 percent, was at Ikpikpuk .It--tile--tttgt:Le"s__tRº-fº.$.ttY:.t.22_..p_~!'.ce~tL wasjn East SImpson 1. Porosities above 16 percent were recorded--fn"alr-W-èTTs--lntñeu northwestern NPRA. A second area of good porosity development is over the Fish Creek Platform northward to where the unit is truncated by the basal "Pebble Shale" un¢onformity. There were several minor oil shows in the Sag River Sandstone at East Simpson 1 and East Simpson 2. · HUKCHI SEA + + SKULL J -~- 'It·- ...... l,./. ''\ TEXaco I~E.~_I II( , TOp OF SAG "PEBBLE SHAL., + + BOTTOM OF SAG RIVER TRUN "PE8BLE SH4LE" UNCONFOR '10. I . + I I R,-Je~f-/~I )?@...,s·e......vðJI"' 9- Aver--~e, lð,-o';¡"& JYlctp c-" p. ~c.~ () I Ye.r S_s:. o'T " , ONLAPS 164- , BARROW HIGH IU· : 152. , : I , T~'L 7ech /-, ~/ Ref'ð~t- (N"o..1f :<''(')0) / 9'11Z III- I Th f êknesš \,'\ Feet, Meters '/t-YO-ff:i!<: At i garu>,Poi nt ·1. IOb-69fÇ South Bárrow 3 106-/01 Cape Halkett 1 /Db-ao'J.J. W. Dalton 1 i06-cÆ3·~W. Dease 1 IOÓ-f<1"i{ Drew Point 1 /()()-IOO West: Fish Creek 1 10ó-/~ u W. T.- Foran 1 -- 100-/03 South Harrison Bay 1 IOO-03~ Iko·Bay 1 ((J(.) _;)rP Ikpi kpuk 1 loo-/~ Inigok 1 IJo-ICIff North Inigolt 1 loo-/~-Kugrua .1 100, 1Sk, Kuyanak 1 loO-I¥tLisburne 1 1CX>-I5"<f South Meade 1 100- ~b Peard 1 100 ,/1,3 Simpson 1 loo-~ol East Simpson 1 IOO-~3 East Simpson 2 loO-¡&}",+ South S1mpson 1 100 - /6;). East T eshekpuk 1 Jt;'ó-/1~Topagoruk 1 IOD-o<{T. Tulageak 1 /ðO_~~-Tunalik 1 10() -w~ Wa 1 akpa 1 IO()-~ Walakpa 2 255 165 215 139 67 510 231 93 284 58 480 343 152+ 372 184 250(1) 238 300 269 431 382 524 181 370 67 . 470 284 313 1~~-65t Sinclair Colville 1 324· - Arco Itkillik . River 1· : 322 ;....,-:.:.--- *n.d.,.not determined. . ·78 50 66' 43 . 21 155 70 . 28 ·87 18 146 105 46+ 113 56 76 73 91 82 "131 116 160 55 113 20 143 87 95 99 99 . .3~8 -- n~d~':: 3.1 o o 9 1.8 14 1/6 . 13.5 ~.4Yj 18 n.d. 1.9 o 1/1.6 o 18 , 0 10 1/1.1 23 1.6 o o 5.6 8.5 7.9 . ~ ~~:~ .'c~·i~f/< 1/1.4 . 1/1.2 . 1/1.2 1.2 <1/8 112.5 1/10 2.4 1/7 1/6 n.d. <1/8 1.1 1.2 1/9.5 5.1 1/2.4 1/8.3 o <1/8 <1/8 <1/8 111.3 1.1 2..3 2.1 n.d. n.d. n.d. n.d.· . . ;......'. . . - . "..... '. "'C' .'. .... ". ..,. _. - .,. '__... .'. <t'~;The·;;;,TR·:3å.5un.it{ê~in~idesi·with;· the Shublik. Formation. The '~~:Varjable,?~tti1cknesstofthe;un1t is assoèiated w·th ~he ·<·:Rt~c1P!;J¡~.ctºn-1~'· feå.~ur.~_~i~f,._~_h.~c_8fM..:l._Ir!~tf!Et,-e~$ter1L.hJl f of·;,·;thè-'~Reserve.-- thee maxiawm thickness ... of TR-3a occurs at _ ;..:L~:C~~;·;;~:~.'f~~f;;~~4¡:;~';-'~·';!~~-;·<~"" ..... . ... . c. , "-,"~~'-~'?-O::'- ~.,~ -.-o;~~- ;":,¡-/,,>'-~ _ >:;:t~~·~>.~-:~t~.~ ,- ·._.-:-~t-_.~ ':~~-_..~;_~:_ ".-. .'~" .;": ,:2- '- -. ft22?f~~~~ff:2¥;.~~..,¿--';:~"~±,~~L-c.;~~~~~,:~·ic;~,.~,c:.Z~::~·..__. ., ¡:." -:;('1) /r - ..- ------.--._--_.---._..., . -'-- -...-......-'=."'..~..-...--- -,',- . . lkpikpuk 1 (480 ft, or 146 m) and Inigok 1 (343 ft, or 15 m) in the Ikpikpuk Basin. East of the Dease Inlet, the basðl "Pebble Shale·' unconformity truncates TR-3a. The truncation zone runs roughly east-west and is just north of J. W. Dalton 1 and W. T. Foran 1. West of Dease Inlet, the unit onlaps the Barrow High. Thicknesses of TR-3a at East Teshekpuk 1 and West Fish Creek 1 indicate thinning over the Fish Creek Platform. Thinning also is apparent on the flanks of the Meade Arch, as indicated at South Meade 1 and Kugrua 1. In the western half of the Reserve, the unit is thickest at Tunalik 1 and thins northeastward toward the Barrow High. Lithology and high gamma-ray curve defl ecti ons withi n TR-3a suggest that the thinning may be due to periodic nondeposition. The TR-3a unit consists of calcareous carbonaceous shales and siltstones, silty limestones, and silty calcareous sandstones. Glauconite is a common accessory mineral in the sandstones, and thi n shell beds occur throughout the interval. Sand-shale ratios and clastic ratios indicate that tbe best sand development is in the northwestern part of the Reserve. I . High sand-shale ratios at Peard 1, Walakpa-l, Walakpa 2, and Iko Bay 1 i ndi cate a source a rea northwest of the present shoreline. TR-3a is progressively more argillaceous toward the southeast and more calcareous toward the south. Over the Fi sh Creek Pl at form, the amount of 1 imestone present increases significantly. At South Harrison Bay I, the unit is mostly limestone. At Lisburne 1, with no nearby control, arenaceous limestone is indicated. Apparent lithologic anoma-l i es occur at East 5i mpson 2 where the uni tis interbedded siltstone and limestone and Drew Point 1 where the high sand count may be caused by statistical variations, or may indi.cate a small barlike body flanking the Barrow High. -- . -"..---.- "-_. . LDper..c..h ~ LJ'I:hD-A~ e¿; IVJC\.f rJ?-3 Q... s ), tA.Åltk F h?.. HIGH (LOG~) . Tei:- '-'CI.. 7ê..,,-h r,;,þ./ R ept3i· 'j- (Nfh, "6 :<"00) ¡ J 1~ :¿ Fi$. 4-9 T BASED ON SEISMIC :RPRETATION. I '- .....,!.'<.O~.M I - . .....)l ~- ./, I + CHUKCHI SEA . . ~ ........ ~ -L + + + ... ... I ... ..... , ....,- ... '''e -'."'08 .-- I i I........~ I I i 1\ TlTALUM I , "" .... ~ '~.~'¡.I '~... __"...4.. ¡ .".....,. 'I X ' -- "'-~-.- ~ I I , ~"... I ~MNIH8LADE -L..: : N '!:J .' 2.IA j "":--- .,. "". I".""'. .,. ...1 I ;·····..1 .'...... ."''';''.' ,'Oft"''' I~ .' I ' ..._~~ I I I, I r TC'--' CA F -t ; 0-/ 8e- or* 'P C)I/,7, -e.:z 00 ) /� _g Z FIGURE 72 TYPE LOG OF UNCONFORMITY-BETWEEN SAG RIVER SANDSTONE AND KINGAK FORMATIOV—SUU-TV ,�i� MEADE 1. WALAKPA 1, AND WEST DEASE 1 This, figure shows representative sections of the Sag River Sandstone at South Meade 1, Walakpa 1, and West Dease 1. In this report, the top of the Sag River Sandstone is chosen at a prominent gamma -ray and resistivity deflection that can be recognized regionally. These sections show that the log character of the Sag River Sandstone is fairly consistent in the vicinity of the Meade Arch, while the overlying rocks are variable. The uBarrow sandstone" and Sag River Sandstone are separated by a shale and siltstone unit. I . . GENERALIZED SUBSURFACE CHART (12/80) ASSOCIATES, INC. ALASKAN NORTH SLOPE BIOSTRATIGRAPHIC CORRELATION MODIFIED FROM ANDERSON¡ WARREN, AND IItA u o N o Z w u u Õ N o en IIJ :E u ¡; .. c ¡ ~ . .. ¡ c r I ~e >-.. ..- ee ... ~> U 0 N 0 11: IIJ c ..J ¡ q .. Q.. ¡; .. .. .. i %ø HOLO- QUATI. CUE HAllY PLEIST- OCÐI! I "UO- o CENI T I 1110- I I CENE ~ I OLlIO- I ;- CINI : ~: IOCÞII y .11 01 .N::- W'NII .. :> o ... u .. ~ ... . u STAGE I I N o H I A H IIAIITRIc:HTIAIII GENERAUZID GIlOUPI,I'OIrIlA"IIONS AHD ..E..BUI A.W.A" POST-PlNN. - A. W. A. II .....IT.. 1'1I£1'11111' ~_ IAN FORAIIIINIF£RAL ØlNOI'LAGILLAT~ ZOIIIII CYST ¡ONU LI S IU81-K FII. SA8AVANIRKTOK 'II. F-I '-2 A.W.A. 'POItI-POLLEJI tOHULU IIHIIIALlZI .,01TRA1IMI ,,"IC UHIT I ,-. P-III" '-4 -------- p-T'O 1'-11'2 ? 1'-111' '-Tit '-11 '-T'2 1'-1114 ..-- ]I --- f-e -.- p-II'S '-7 ,-. 1'-1111 - .......... F-9 __.. P-M,y _... ..F-I(J..... _-.,.. ....... -. "-... p-n -........... P"M.. r-- P'II , -12 ". 1'-11'" C f v I L L I . D I AYIYAK N'It. ~ .IABlI 1'''. SHALl WALL .... --~---~---,- NANUSHUK IIII0Up TOROK 'II. KINGAK FORMATION ~ ~,- ~RIVElt SANO- C!:.-.. STONE ~7- SHUBLIK ,... '-IS '-14 --------- '-IS '-1' '-/7 '-II '-111 ...------- p-N20 P-"It 10nä@i '-M2I ..-------- '-M14 '-M2S ........ "-1127 IVISHAK '". -------------------- i ~ a i ~ lJlUl!IIIIIIIU~ r-----.. KAVIK ....R. ECHOOKA 1'''. LI...I.TONI ~ UPPlIt ~ LINDTOIII UNIT U G 8 ' -... -,- p .-...- --- '&ötõllihùliT7 ------ . lOWER LIllY UIWIT ...LApA/I L IMESTON£ .. ....ltlll..IAN E ~ HAUTlItIV'AN o II VALANIIN IA.. I ., C IUIIIA_II fITHONIA~ 1'.- , ...-1IØIITLAllDINI ~ KI....ERIO..A.. ~ '.1 OXPOIIOIAN CALLOVIAN ..'0........ BATHON'AN 'A~O'IA" AALlNI"" TO"'IIC''''' PLIe..IIACHI"" IINE..UItIAII "ITT"'.IA" IINAlTIAN NOIIIAN KA...,AN LADINIAN ANIIIAN S PATNIAN SIIITHIAN DIINIItIAN GRIIIIACHI...N OCHOAN 'UAOALUpIAN LEONAROIAN WOLFC"""IA N ~ .. .. .. "' :> .. I ..... ~..., , '.l~ X~"'- CA" PAHIA.. I ANTON I...N CONIACIAN TUfteNIAN C I NOIIANIAN ALBIAN APTIAN KAWVIAN ATOK"'N 110 ""OWAN C"ISTIIIIA" IlIIIAIIICIAN OhUAN K INDEII"OOKIAN I Na Zv ~ ITKILYAIIIAK FOII..ATION KAVAK SliAU . IICKIKTUK CGL. II ,DOLI; ".-/ ..~ *''' ø )/( ':Æ 111001.1: L.A' 'ú"pIRJ DlVON- IAN TETRA TECH REPORT NO. 8200 '-20 '-21 "A MET'S ZONIS 21+ II II 10 .. II 17 '" III II 14 IS 12 " 10 , . 7 I S ? P-T'S -------- pOT II r~l~ p-TII ---- -- --- p-TIt -- -- ----.. 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NP N.p N.P N.P I'll' F-4 I I'll' I'll' I'll' NP 1'1.1' N.p 1'1.1' 500 010 N.p N.P. NP N.P 510 1'1.1' N.P 1'1.1' NP 530 F-5 (Poor Marine I'll' 1'1.1' N.? 80 1'1.1' I'll' N.? 950 580 500 40 1'1.1' 050 00 NP N.? NP 1'1.1' 980 F-5 I'll' 1'1.1' N.? 00 ~ I'll' o " N.r N.P 2090 2450 220 350 1'1.1' 950 90 I'll' N.? 1'1.1' NP 2300 F-5roF-6 I'll' 1'1 P N.P 340 N.P 560 N.P. 1'1.1' 2330 2840 550 620 1'1.1' 60 2440 N.P 1'1.1' N.P N.P 2630 F-6 NP I'll' 2030 590 490 1'1.1' N.? 2880 3410 2090 040 1'1.1' 2550 2940 N.P N.P 1'1.1' N.? 3080 F-7 rr 5820 6620 I J N.? y 1'1.1' 90 1 1'1.1' ?90 N.? 05 N.? N.P. 940 00 2 N.? o N.P :~jI:ó;;-~ 1050 460 570 960 1'1.1'. 1'1.1' N.? 1'1.1' 115 --L 2340 I'll' 90 1'1.1'. E,Cre!. 010669 I N.? 95 740 I' N? N N.? 00 I'll' 00 N.P o 2450 2570 ?2040? 2360 ~ _ 3400 3520 ~ /:4170/.'.' ://////,~ 5130 5700 2090 100 . 160 L--..¡ ! 740 i N.? 80 3210 3330 J 3650 3770 o 2630 I w 25 1610? 760 1'1.1' 00 2730 2820 3340 3610 1'1.1' 1'1.1' I'll' 200 N.P. ~Hjß~ ?1397 N.P. N.P. 3410 3530 1 F-8 F-9 5950 540 1'1 N.P. 3560 4800 5700 2640 2640 2610 N,P 990 2760 3420 4265 3485 5000 2860 690 3600? 4430 5600 6800 00 N.? F-IO m 7650 060 2230 900 690 I I 7350 0620 980 2490 3780 6340 6930;r'~~~~9~ ~/~///,' ~~:.:..~ ~~~;,% 6743 f'I.p N.P. 7042 G 6340 N.P 3~ 3540 6420 1'1.1' ~ 5303 10 6500 6240 1'110<""'. ~ ~.-"3'00 .../..~.,.... 6760 0992 6720 4 O? 4 3360 30 2200 2980 4680 o 6890 ';j ~2~ 41 N.R NR 5180 6970 7490 9060 /1180 7240 ~ ~j~!9;; 7480 V 520 I "" 850 5260 N.P. N.P. 5950 I 7380 ~ ~ 1'1.1' 4800 7250 4740 6740 850 2930 4740 7320 7380 ""J///// /'-/:;/'/ /// ;;,~~-~~~:~~~;,~ N.P. 1'1 r 000 450 730 3380 ?N.p 8730 t 2080 2650 ~ 3590 ~2 3~.{ó:;;:;;ipJ.ó;~ 8910 ~ ? 310 6970 7243 ~ N.R.~ 7860' _. '7830 - ~ N.R 7920 N.R. 1 I 8280 N.R. ____ ;~ 8400 8532 8190 2560 2800 2037 '777/ 77;' /'/;~J;/.; 1'1.1' N.? 1'1.1' 7052 W9~ f'I.p N.P. ",0 N.? "'.P. 5677' '?N.P. :' N.R N.R N.? f'I.R. N.p 7450 N.P. NR ".R N.P. 1'1.1' 7790 I'll' 9480 0260 l 1006 8100 I J, 8190 7270 ~ 7360 N.P 1'1.1' N.p ~ 7870 N. I' N? Np 1'1.1' N.? N.? N.p ? 740 1 L, Jur. ?2080 1 v v ? 5310 ~9J~O,? N.R. 5630 7282 F- F-12. F-12toF-13 E.Cret.- Jur. "1624 t ? N.R N.R NP f'I.P. ,;"-13 f - 14 F-13 to F-14 F-15 910 4rO N.? 2I9 '> ~I}~q~q; 0080 ? N.P. 3087 3990 3363 4250 3710 6705 !Iô!? ? N.R. NR 6940 6370 9700 NR 0100 2210 2448 7590 3732 7730 f'I.R. F-19 0270 0350 520 1'1.1' IIIP 7135.5 1'1.1' 1'1.1' 1'1.1' NR 1'1.1' N.R I'll' 30 f'lR 580 N.p 1'1.1' 9050 N.? 9680 N.? N.P 1'1.1' N.P. N.R N.P. N.R. 1'1.1' I'll' Np 600 NR 2060 N.? N.P. 9/150 N.P. 9930 N.? 1'1.1' 1'1.1' 1'1.1' N.R. I'll' N.R N.? 1'1.1' Np 2380 N.R 2400 N.P. N.P. N.R. N.P. 10286 N.? N.P. N.P. N.P. N.R. I'll' N.R N.p N.P. N.P. "'N.R N.'! 2940 N.? N.P. f'I.R N.? 0440 N.P. N.p. N.P. N.P. N.R. 1'1.1' N.R. 1'1.1' 1'1.1' 1'1.1' N.R N.R I I ¡ , I N.R N.R N.R 3890 360 N.? o 02 1'1.1' N.P. 1'1.1' 1'1.1' N.P. N.P. N.R. 9490 F-2 N.R NR 4150 630 N.? 0275 N.P. 0470 N.P. N.P. 1'1.1'. 1'1.1' N.P. N.R. 95/10 i!.-21 + N.R NR 4740 2480 N.P. 0720 6200 0620 I'll' a820 N.p 1'1.1' N.P. N.R. 9910 i!.-2 N.R N.R. 5215 2930 f'I.p 70 6500 10950 N.P. 9020 N.P N.? N.P. N.R. 0270 l.-20 NR 5740 3480 N.? N.R. 1'1.1' 00 1'1.1' 9160 N.P 1'1.1' N.P. N.R. 0460 to l.19 l.t8 3230 N.P. N.? N.R. f'I.P. N.? N.p. 1'1.1' N.p. N.p f'I.R. N? N.R f'I.F N.? NP N.R !'f.R. N.R 1'1.'1 6220 3760 N.P. N.R N? N.p L. Miss. "9320 N.P N.? N.P. N.R. 0640 i!.17 to l.l8 Dolomite Unit l.-16 3510 N.? N.R N.R. N.? ~10620 N.? ? 7460 N.? 1'1.1' N.R. Np N.R N p. . 7390 I ~ I'll' I'll' NR N.R NR N.R L. Mias. ?16490 L. Mill. ?14000 N.P N.R. N? N.P. f'I.? ~10160 %'9Æ~ó,%, ? y N.P. 4950 5310 Prob. Ju ? 8104 I 7200 7530 I i ~ 8370 N.P. 3560 v . ......? 74.8.o~;·,é~520/ . '> 7660 8670 ~/. . , /,9ßPo.(' ~ ?9416 ?6600 ? 1'1.1'. N.P. 1'1.1'. 4290 4360 N.? 6IO . 6620 '> " . . ~<E?!~9' ?6304 ---,. 6900 :6346/ ? ? 1'1.1' N.? 1'1.1'. 1'1.1' NP 1'1.1' ? 5684? N.R N.R. N.? 4810 N.P. 3620" 3666 1'1.1' Np 710 6520 ;8769/> 8930 N.? N.P. N.? N.? 5058 Ju' - ------- E. Crœl 5093 ?6100 ¡ N.? I 5165 I· 5330 1-+ 1 1'1.1' N.? ? o 63 N.R 1'1 R ~::.~~~m "9816 f'I.? 9000 9655 f'I.R. N.R. N.R. 2033/1 N.R. N.R. NR NR NP N.P 9600 ~~f'9;; 0110 N.P 8230 1 " :;::'9/Òj¿ 8970 ',' :/4·ÓI2/. N. P ~::~<;~;3 7880 %;~;~i 0Y'i /./; ///"/''l';: I'll' ~~ß //~~/;/ ///~' ~'/. 8317 W%-: ~.1~/ø 8560 :~0~ ~r1;; 8980 '/'l/%//.;.-; ~;.;;~/ "" B - ~ . v~ "- N.? 9250 . ? 8200 Carb- P,rm. ? 8 590 60 N.P ~//,ij///////// /1'31~85~0;, ~.~.w~.¡./~: ~.~~///.//. , /~~~;~ ~ ~ØX~¿-~ u/~. /. N.R. //,' .// /.",/ ,,".',' N.R. N.? N.? 3950 4015 ~ ~. 8700.· ~~ I 8890 1 9330 ~ N.R N.R I'll' I'll' N.? 1'1.1'. 7460 ? N.R. N.R 1'1.1' 1 ?N.P. N.R. 0503 7137 N.R N.R " " Ç.76956/'1//9·2·10/, 1'/,1'" / I' I'¿/ //// //1 i 6977 9270 I N.P 3360 N.? 8730 v N.R. N.R. 0664 8570 89f? NP I'll' N.R N.R 1'1.1'. N.? N.p. 8740 8795 670 1 9f V 2000 1 N.? ar 1'1.1' N.P. 6905 N.? 7630 1820 1 ::::39,8,0/ . 7780 ~HWJ 70 7930 1'1.1'. 9170 V " N.R. 1505 N.p I'll' M.-E. J.,. ?2ro ? ?l¡'11 t ., 7·210 1 N.R. 1'1.1' 7UO 7739 1'1.1' N.P. N.R. N.R. 1'1.1' N.R I'll' N.? N.!! 1'1.1' N.P Jut 'Y8 ? E. Jur. ? 1999 .+ ? '¡6~1 N.R. N.R. " ~~~~g~ 8310 F-18 F-18 to F-19 N.P 9970 N.? ?N.P. 7002 N.R 710 N.R N.R N.P N.P. F-16 F-17 N.R N.R N.R N.R. N.R. II N.R. N.R. N.R 56 N.P 2480 1'1.1' N.? 9630 0225 0390 0570 1'1.1' N.R NR. N.R. e72 N.? N.? N.R I'll' '//////1 /,~530 / ~//////, KR. 9945 J. 9240 9360 N.P L M;ss ?8220 7000 I'll' 7650 N.R N.R. 9510 9660 NP ?6580 6690 I'll' 7554 NP NR Nq 258a N.p 8160 NR f'lR 1'1.1' NP N.R NR qa2 N.P N.? NQ NQ ): ~~ÙX~ N.P. N.R. N.R N R NR 39 N.? 8580 NO ... F-20 F-20 N.R Olr 0 to F-19 NR NO NR ..../-': .'-,~, ~18II0' ; fØi¿~· ~;" ~/'/'''/' %"'//" ,/,/.// . 0://'/' ~/~: 5400 ~?:.! r~0~~2 Mill. 4ro N.? 546 ?I f'I.p. N.R. 273 1'1.1' N.? N.R. N.R. 290 1'1.'1. N.R 8770 8864 N.R. 427 1'1.1' 7630 7946 1'1.1' N.P. 4110 9367 v N.? 9779 9900 1'1.1' 1'1.1' 1'1.1' 2344 2535 N.? f'I.p 2460 2890 f'I.P ? to t:.15 l.13 or Older Devonian? TOTAL DEPTH te l.14 ArQi . . Table 2. -- Exploration wells drilled by the Navy from 1975 through 1977 and by the USGS from FY 1978 through FY 1981 Name Job-IOI Cape Halkett Number 1 East Teshekpuk Number 1 South Harrison Bay Number 1 A tigaru Point Number 1 West Fish Creek Number 1 South Simpson Number 1 W. T. Foran Number 1 Drew Point Test Well Number 1 South Meade Test Well Number 1 Kugrua Test Well Number 1 Location Date Date Total S pud~~~_Ç;Q~£k!~---º-e£.!.h 18 mi ESE of Lonely 25 mi S of Lonely 50 mi SE of Barrow 44 mi SE of Lonely 51 mi SE of Lonely 41 mi WSW of Lonely 23 mi ESE of Lonely 14 mi W of Lonely 45 mi S of Barrow 67 mi SW of Barrow North Kalikpik 37 mi SE of Test Well Number 1 Lonely Inigok Test Well Number 1 60 mi S of Lonely Tunalik Test Well 22 mi SE of Number 1 Icy Cape n,pikpu]( Test 42 mi SW of Welì Number 1 I,onely PeaI'd Test Well 25 mi NE of Number 1 Wainwright East Simpson Test 55 mi BE of Well Number 1 Barrow J . W. Dalton Test 3 mi E of Well Number 1 Lonely Lisburn Test llO mi SW Well Number 1 Umiat Seabee Test 1 mi NW of Well Number 1 Umiat Walakpa Test 15 mi S of Well Number 1 Barrow East Simpson Test 50 mi SE of Well Number 2 Barrow West Dease Test 28 mi SE of Test Well Number 1 Barrow Awuna Test Well Number 1 Walakpa Test Well Number 2 152 mi S of Barrow 16 mi S of Barrow 3/24/75 3/12/'76 11 /21176 1/12/77 2/14/77 3/9/77 3/7/77 1/13/78 2/7/78 (reentered 12/4/78) 2/12/78 2/27/78 6/7/78 11/10/78 11/28/78 1/26/79 2/19/79 5/7/79 6/11/79 7/1/79 12/25/79 1/29/80 2/19/80 3/1/80 ( reentered 12/5/80) 1/3181 North Inigok Test 20 mi SE of 2/13/81 Well Number 1 Teshekpul¡ Lake Kuyanak Test Well Number 1 Tulageak Test Well Number 1 Koluktak Test Well Number 1 30 mi SE of Barrow 24 mi ESE of Barrow 75 mi S of Smith Bay 2/18/81 2/26/81 3/24/81 6/1/75 5/11/76 2/8/77 3/18/77 4/27/77 4/30/77 4/24/77 3/13/78 1/22/79 5/29/78 4/14/78 5/22/79 1/7/80 2/28/80 4/13/79 4/10/79 8/1/79 6/2/80 4/15/80 2/7/80 3/15/80 3/26/80 4/20/81 2/15/81 4/4/81 3/31/81 3/23/81 4/19/81 9,900 ft 10,664 ft 11,290 ft 11,535 ft 11,427 ft 8,795 ft 8,864 ft 7,946 ft 9,945 it 12,588 ft 'f,395 ft 20,102 ft 20,335 ft 15,481 ft 10,225 it 7,739 it 9,367 it 17,OOOft 15,611 ft 3,666 ft 7,505 ft 4,170 it 11 ,200 ft 4;360 ft 10,170 ft 6,690 ft 4,015 it 5,882 ft Deepest Horizon Attained Argillite basement (Devonian or older) Granite basement "Remarks _________~__ Dry; plugfred and abandoned Dry; plugged and abandoned Lisburne Group Poor oil shows; plugged and (Pennsylvanian part) abandoned Argillìte basement (Devonian or older) Kayak Shale (Mississippian) Argillite basement (Devonian or older) Argillite basement (Devonian or older) Argillite basement (Devonian or older) Argillite basement (Devonian or older) Lisburne Group (Mississippian part) Kingak Shale (Jurassic) K ekj]¡tuk Conglom- erate (Mississippian) Poor oil shows; plugged and abandoned Poor oil shows; plugged and abandoned Dry; plugged and abandoned Oil and gas shows; plugged and abandoned Poor oil and gas shows; plugged and abandoned Poor gas shows; plugged and abandoned Dry; plugged and abandoned Poor oil and gas shows; plugged and abandoned Encountered hydrogen sulfide and sulfur at 17,570 ft; poor gas shows; plugged and abandoned Lisburne Group Gas test; plugoged llnd (Pennsylvanian part) abandoned Kekiktul¡ Conglom- erate (Mississippian) Argillite basement (Devonian or older) A rgilli t e baseme nt (Devonian or older) Argillite basement (Devonian or older) Lisburne Group (Mississippian part) "pebble shale" (Late Jurassic? and Early Cretaceous) Argillite basement (Devonian or older) A rgilli t e baseme nt (Devonian or older) Gas shows; plugged and abandoned Poor gas shows; plugged and abandoned Oil and gas shows; plugged and abandoned Oil and gas shows; some heavy oil recovered during testing; plugged and aban- doned Shows of gas; plugged and abandoned Oil and gas shows; plugged and abandoned Shows of gas; plugged and abandoned Oil and gas shows; plugged and abandoned Argillite basement Oil and gas shows; plugged (Devonian or older) and abandoned Fortress Mountain Formation (Cretaceous) Argillite basement (Devonian or older) Shublik Formation ( Triassic) Argillite basement (Devonian or older) Argillite basement (Devonian or older) Torok Formation ( Cretaceous) Many gas shows; plugged and abandoned Temporarily abandoned (Gas well - Walakpa sand) Shows of gas; plugged and abandoned Minor gas and-oil shows; plugged and abandoned Few poor oil shows; plugged and abandoned Gas shows and minor oil shows; plugged and abandoned . . -::,;.- ... COMPANY WELL FIELD OR AREA LOCATION COUNTY ELEVATION SPUD DATE TOTAL DEPTH DRILLING CO. REMARKS \ HOLE SIZE 18 112" ?414' I? 114" 7864' 8 1/2" 9900' ... ,; BORST 8 GIDDENS LOGGING SERVICE, INC. ANCHORAGE) ALASKA VENTURA) CALIFORNIA CALGARY, CANADA DFPARTMFNT of the NAVY N.P.R.-4, CAPF HAl KFTT 16N/?W/NO. I NORTH 51 OPF 1400' E. of W. I 'ne a ?()()()' N. ofS. I 'Ine, Sec. 5 ISNI?W LOGGING PERSONNEL FF HOWARD CI AUS JAKoASFN DENNIS LUNDQUIST DATE BEGUN 4/? 175 DATE RELEASED 5/21/75 . I . I NTERVAL LOGGED 512 - 9900 FOOTAGE 9388 SERVICES PERFORMED MUD-lOGGING, CHROMATOGRAPH, TEMP. IN-OUT. MUD WT. IN-OUT, PIT VOL. I ST., H2S ANALYSIS STATE AlASKA . 39.5 K.B., est. 3/24/75 FINAL DATE 51? 1/75 9900 PARKFR . PUSHER SMART - RQFHI FR LlGNO-SULPHATE MUD 2.414 -9900 A88REVIA TIONS CG CONNECTION GAS COR CORRECTED DEPTH WT MUD WEIGHT VIS VISCOSITY WL WATER LOSS CI PPM CHLORIDE NoCL SOm;,CHLORIDE R1~ tt~'~'f'ID'ITY "'~ 2 4 1916 NB NCB NR co DST PR TG LAT NEW BIT NEW CORE BIT NO RETURNS CIRCULATE OUT DRILL STEM TEST POOR RETURNS TRIP GAS LOGGED AFTER TRIP CAS I NG RECORD ?O" 49?' IS" ?410' 95/8" 7841 t MUD TYPE WATFR/cl Y'/POI YMFR TO ?414 . . on!. Gas CQoaervatic .... Gas detector IS calibrated to record 1üq)l~n.,.p'nll)(111!t~4~2% methane In air . I: : : : : :1 SANDSTONE r. ----=1 SHALE ~~~ ~~ SILTSTONE hl,I,I,',ILlMESTONE 10 0 0 0 0 I CONGLOMERATE 100000 I~ CHERT ri~~~ VOLCANICS I / / / //1 DOLOMITE 1///1 I~~~~~ IGRANITE I CLAY DRI LUNG RATE DRILL RATE (FT/HR OR MIN/FT) BIT WT IN THOUS ...... "'~~ft.ttNG DATA . LITHOLOGY OIL MUD GAS ANALYSIS-CHROMATOGRAPH IN PPM CUTTINGS ANALYSIS .:.1 C-I---- ~~~~~A~~~~, C-2 .C-3, c-41 C_~_~~T~~,,~= 8~C~ ~~ I _ I DESCRIPTION AND REMARKS l ' (J1 o o .., P r~o:\ 4/?/~· -tJ~V." ~"::'\~ 111./" 1 ' . f~ . ~ -' I~ ,. ,. . I" . obund lio CLV wht 1ft o~ ~n wood f(095 . . . . . . · .. . . . . -.-." . · · trs v cse clr sr sd -.-. ... I , 0_'_" . --. ... . . . ----- -Z.;f 'r ~ " ¡ ~. ,', " t ... -'~. .......::.,;. ~ -~ ~ 4-, ~' ~ ... ~ , ' .,.J . \ - '" .. t' .. '. DivisIon tf 01\ & 'Jid. ,''\"C'': ,C"o il}e ...)~valìr r RECE\\fFD MM 't. 1978 <. {:y ~-- ~ - ~,.. .' . 'J',__ JIt.. ,..... '.- ~-¡,;....~.~\,,~ ':'_, r r ¡ , -,""+ ~ "'I'" STRIP LOG RECEIVED MAR 2 4 1976 .. _.<LO~ No.- USN-2..75 WELL NAME - SAPE HALK~Vi~~,.Q1i~~;conaervatì(' OPERATOR - U.S. NAVY CONTRACTOR- PARCO DRILLING INC. RI] ì:C. 128 LOCATION-SEC 5,TWP 16N,RGE 2. PROVINCE- ALASKA K.B. ELEVATION - 39.5' TOTAL DEPTH- 5PUDDED- 24 MÁR 75 FINI51"'ED DRILLING- RELEASED- c:::.TATUS & liP - PRODUCII"-JG FORMATION- INTERVAL LOGGED- LOGGED BY - S.P. r3lTRDEN,P.ENG. M. L. MANGUS PLATE IX ~ -~-;"-"-:~ '" j ¡ j j j iì 1 ~ , -; i .. .. .. March 23, 1978 (. ~pI) ~ ~v~ /IllY /!¿~¡ ~i¥\ þ? UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY of National Petroleum Reserve in Alaska 345 Middlefield Road Menlo Park, California 94025 Mr. Harry W. Kugler Division of Oil and Gas Department of Natural Resources State of Alaska 3001 Porcupine Drive Anchorage, Alaska 99501 Dear Mr. Kugler: We are sending you, under separate cover, sepia and blue line prints of logs on the following wells from NPRA: ~~~;;'";~-:-1~, lKCr" Hay'-"N~-r~"'-''-^'' .".,'~ South Simpson No. 1 W. T. Foran No.1 Lists of the logs for each well are attached and those we are sending to you are enclosed within the red outline. The letters,"S" and "P" indicate "sepia" and "print". These logs are not to be released to the public until their avaiÞbility is announced by the Environmental Data Service of NOAA in Boulder, Colorado. NOAA will be the primary distribution agency and their release of the data will be authorized by the Office of National Petroleum Reserve in Alaska at the proper time. Please aCknowledge receipt of the logs and your under- standing of the release procedure by signing the attached copy of this letter and returning it in the self-addressed envelope. Very truly yours, Jeðrft¿ffÇJ && Robert D. Carter RECEIVED MAF? 2 B 1H78 Division ot (í'1nd I' ' , .1 '..' ',J ~'I;>" ,:",." "",',',.,' "w., v- ·...VI ..<:.~ :J¡l Atwhorago ..~( . WELL NAME: Cape Halkett No.1 ITEM - 1. 2. 3. 4. 5 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. TYPE lOG OIL OIL OIL BHC BHC BHC BHC BHC FOC-GG CNL-FOC CBl T-Log OM-Arrow Plot OM-Arrow Plot r~ud Strip Coriband Caliper SCALE BASE RUN DATE 5 F 1 4-09-75 2 5-01-75 5 2 5 5 2 5 2 5 5 5 5 2,5 2,5 2 2 5 5 F F 3 5-21-75 1 4-09-75 2 5-01-75 3 5-21-75 2 5-01-75 4 5-21-75 2 4-14-75 2 5-01-75 4 5-21-75 F F F F F F F 1 3-25-75 1 3-25-75 1 5-01-75 1 5-01-75 'l. 5-21-75 2 5-06-75 2 5-75 1 5-01-75 2 5-28-75 - 5-21-75 F F V V V S F F 4 6-07-75 1 4-09-75 , LOG INTERVAL 04931-2404' 2413'-78581 7840'-9892' 0493'-2404' 24131-7858' 78401-9892' 2411 '-7853' 78361-98941 00301-13611 2411 '-7853' 7836'-9894' 0040'-0509' 0040'-05091 2416'-7866' 2416'-78661 78401-9893' 0500'-7849: Bo .- ¡ 361 0090'-78501 2434'-78541 7866'-9858' 0512'-9900' 0600'-9900' 78501-9900' 0487'-2410' Page .....L.. Of~'"' ¿;,;:> COPIES RCQU!:SH.O- F~P r {7 Ffp \ FiP' F,P -- F,P ~ :=¡P¡ Ì' ~ Fip I F~P ì ; \ F:¡P I F:'P f 1 F,P . p¡ ¢ F~P f ,I F S,P J ; ¡ F~s,pf '" .~ ! F P í F.P F.P F.P r.'.' "".. é'.. ,c. , r{tlti L, Lj MÀ;{ 2 8 Dh/ísìon 01 (nî Äí.!chOfZlDß ~.. ~ /{IV -~tr-I , .-. UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Office of National Petroleum Reserve in 345 Midd1efie1d Road Menlo Park, California 94025 Mr. Harry W. Kugler Division of Oil and Gas 3001 Porcupine Drive Anchorage, Alaska 99501 Dear Mr. Kugler: . (\ V~7)) Alaska ~:ì~ ~ December 15, 1977 In accordance with your letter of August 29, 1977, to Irv Tai11eur, we are sending you, under separate cover, well log sepias which we had on hand. Two lists of these are attached; please acknowledge receipt of the sepias on one of these and return in the attached envelope. K __11 1\ ~-~ 1\1\ ~ ï' j/\ ~ 1M RftP Q.... ~!vv'- ~,-,.. ¡;;¡.¡r_.' ~~~. ",:"~ ~"'. - The remaining sepias and blue line prints of all logs will be sent to you when we receive them from Houston. A purchase order for this work is presently being prepared. ~' ~~~.. ~~"~~' 10:' ..."",-"'. ;.'.....'?.. Very truly yours, µ (;', ') .~ z-. ðdJ/fLt (L/ !L0 v'&'~ Robert D. Carter Attachment fJrr["I'/cr J \. ¡ '. ! . , '. ,) ~:.:.' i' ,__ /;f} 71 ni,¡;C';";l I"'fí < r· L,..,.-,,-._., ,-" ' ii1':":V:¡':':ìn /-;.-. ;ti:Gt,-:'-"·" ~~'.:t..~~~ __.__. .i,.:,;._,..."~.;_~".:.:- ~'. ~:.&.;.~..... . ~~~,_ c'~":~.' '{'. ~.ê.:.*.'."~"":;'''''' "~"..~.,"T"'¡J>è'· .~.!~;.o,;;...""'~.'.#". '~..' ~.:"""'~ -;:.r~."'-'. ~""'.-. ¡"..'<C~<s..",.",~.,,,,".?,\.,,,:..,,...~.. ·~tIL'.·".. ;'""""-o::.;'..'''''.....''.>;.~... - .. "'~":'[~~~,.~¡ "'-!f~~~"'~...... )~'~~ "', :"':Y..~~l"f'" .. ;""'i::~ ;¡¡"'A" ~<¡'fI'f!'J("';"''¿~rc ~~Â' :Ii';.~k.~~""~~-....: ':~....~'if~'''''~''. .".....i~~~~:._. ,,¡.~.t~..;~t.f¡.~,. r·~· - , 1:'"'''''' .' ~ t "It,! ~t... . "'. ~~~.. ~:~>.;..._~>' Þ"C'-' t'~ : ~~y ~~~"'. ...-. - . .' " . . ~ . . Sepias / Saraband .; Coriband v Dual Induction - Laterlog East Teshekpuk #1 v Dual Induction - Laterlog v Borehole Compensated Sonic Log ~;; H~-..l..-...k.e.. tt 1..6.-.·.·.N.·-.::z;;·.:]\ vDual Induction - Laterlog ~__" '/'-~ '/Temperature Log . '-..' v Ca 1 i per Log l Compensated Neutron - Formation Density v Cori band ./ Compensated Formation Density Log v Borehole Compensated Sonic Log v Borehole Compensated Sonic Log · Borehole Compensated Sonic Log ~ Borehole Compensated Sonic Log \ Dual Induction - Laterlog j Cement Bond Log . v Cement Bond Log GCement Bond Log ~. Cement Bond Log ,/ Mud Log v Stri p Log Atigaru Point #1 Iko Bay #1 South Barrow No. 12 r', r C ¡-. , r .:- r" I... ,~;_ ¡ " ,.. , ) f\\ t_ '>.0' t" \/ L. ~'-' \"1 F f~ r;~ (', Sri';? '/ "-.-- -- "~ ,). J . " "Dlvt~:~~f: A,f' (, i,'·.!:1' :'J.I r·· ----- VContinuous Dipmeter v'Borehole Compensated Sonic Log /Compensated Formation Density Log ¡Dual Induction - Laterlog V Borehole Compensated Sonic Log v Proximity Log - Microlog v Dual Induction - Laterlog Proximity Log - Microlog Cement Bond Log FD Log Compensated Neutron - Formation Density J Mud Log Dual Induction - Laterlog Cement Bond Log Borehole Geometry Log Formation Density Log Compensated Neutron - Formation Density Proximity Log - Microlog Saraband Dual Induction - Laterlog Borehole Compensated Sonic Log Borehole Compensated Sonic Log 5" 5" 2" 5" 5" ~ 2" 2" 5" 5" 5" 5" 5" 2" 2" 5" 5" 5 5 5 5 2 2 r---:-- ~~-e, ~r ~~:;;;. ~." .... ~ ',,¡to? .... í¡~. e;.f,. ¡;' ~~~., ...... ...,.~ 5" 2" 5" 511 5" 5" 2" 2" 2" 5" 5" 2" he,,·,·..· .~ '''':,: ~"'" '''..J..... . .....~~f<. ~ .. . ~~..... .... 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" . f V e 11 urn South Harrison Bay #1 2",2 runs Dipmeter Arrow Plot v/ ~, r' ., South Simpson #1 Dipmeter Arrow Plot 2",2 runs v~ Þ ~__t - Atigaru Point #1 Dipmeter Arrow Plot 2", 2 runs vv' Wt Foran Dipmeter Arrow Plot 2",2 runs \.tV '"- West Fish Creek #1 Dipmeter Arrow Plot 2", 2 runs ~/'// '.--~ I -, ..--.. t n'_, Above material has been received and will be held in a confidential (proprietary) status until announcement of release by the Environmental Data Service, National Oceanic and Atmospheric Administration, Boulder, Colorado. ~, ~;; ,f;..~ !~'¡ :::~:;t ,., r¡ J/ ,;! a1r! I \, , ..' f . , '-f) C' -' , / ~ (/' /7 ¡ ~.-. ..... fI;:~..,' ~ ~ r- r f DÌ\!i~ir:\1 ;. -.. L.....:.- ,-, ~ .. ' ~.,... ~ , ' ---- r-- " ( [it., "; f! J.....-.'