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Home My WebLink AboutCO 220Conservation Order Cover Pa XHVZE This page is required for administrative purposes in managing the scanning process. It marks the extent of scanning and identifies certain actions that have been taken. Please insure that it retains it's current location in this file. Conservation Order Category Identifier Organizing RESCAN [] Color items: [] Grayscale items: [] Poor Quality Originals: [] Other: NOTES: DIGITAL DATA [] Diskettes, No. [] Other, No/Type OVERSIZED (Scannable with large plotter/scanner) [] Maps: [] Other items OVERSIZED (Not suitable for plotter/scanner, may work with 'log' scanner) [] Logs of various kinds [] Other ' BY: .... ~____~ARIA Scanning Preparation TOTAL PAGES Production Scanning Stage I PAGE COUNT FROM SCANNED DOCUMENT: /~"~ PAGE COUNT MATCHES NUMBER IN SCANNING PREPARATION: .,~ YES -- NO r~ ~ BY: Stage 2 IF NO IN STAGE 1, PAGE(S) DISCREPANCIES WERE FOUND: __ YES NO (SCANNING IS COMPLE~'I~='~'~ THIS POINT UNLESS SPECIAL ATTENTION IS REQUIRED ON AN INDIVIDUAL PAGE BASIS DUE TO QUALITY, GRAYSCALE OR COLOR IMAGES) General Notes or Comments about this Document: 5/21/03 ConservOrdCvrPg.wpd STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Re: THE APPLICATION OF ARCO ) ALASKA, INC. AND STANDARD ) ALASKA PRODUCTION COMPANY ) to revise pressure survey ) rules in Conservation ) Orders 165, 208 and 213 ) Conservation Order No. 220 Prudhoe Oil Pool Prudhoe Bay Field November 3, 1986 IT APPEARING THAT: · Arco Alaska, Inc. and Standard Alaska Production Company requested changes to pressure survey rules in Conservation Orders 165, 208 and 213 by letter dated September 26, 1986. · Notice of an opportunity for public hearing on November 6, 1986 was published in the Anchorage Daily News on October 4, 1986. · There was no protest to the proposed changes filed with the Commission. NOW, THEREFORE, IT IS ORDERED THAT Conservation Orders 165, 208 and 213 be amended to read as follows: RULE 1. Conservation Order 165, Rule 6a, is amended to read: Prior to regular production, a static bottomhole or transient pressure survey shall be taken on each well. RULE 2. ConserVation Order 165, Rule 6b, is amended to read: Within the first twelve (12) months following regular production from a well, a static bottomhole or transient pressure survey shall be taken on the well. RULE 3. Conservation Order 165, Rule 6e and 6g, are repealed. RULE 4. Conservation Order 208, Rule 1, Rule 2 and Rule 3, are repealed. Conservation Order No. 220 November 3, 1986 Page 2 RULE 5. Conservation Order 213, Rule 1, is amended to read: By administrative approval the 'Commission may grant time extensions and waive requirements of this order, and by 'administrative order the Commission may require additional pressure surveys in Rule 3 of this order. BE IT FURTHER ORDERED THAT: RULE 6. A minimum of 95 and 87 static bottomhole or transient pressure surveys shall be run annually in the Western Operating Area and Eastern Operating Area, respectively. These surveys are needed to effectively monitor reservoir pressure in the Prudhoe Oil Pool. The surveys required in Rules 1 and 2 of this order may be used to fulfill the minimum requirements. RULE'7. Data from the surveys required in Rules 1, 2 and 6 of 'thls' order shall be filed with the Commission by the last day of the month following the month in which each survey is taken. Form 10-412, Reservoir Pressure Report, shall be used to report the data from these surveys. Data submitted shall include rate, pressure, time, depths, temperature, and any well condition necessary for complete analysis of. each survey. The datum for the pressure surveys is 8800 feet subsea. Transient pressure surveys obtained by a shut in buildup test, an injection well pressure fall-off test, a multi-rate test or an interference test are acceptable. Other quantitative methods may be administra- tively approved by the Commission. ~ RULE 8. Results and data from any special reservoir pressure monitoring techniques, tests, or surveys shall also be submitted as prescribed in Rule 7 of this order. DONE at Anchorage, Alaska and dated November 3, 1986. :~-. C~at~E~,/Ch~irman C Alaska il an~Gas Conservation ommission W. W. Barnwell, Commissioner Alaska Oil and Gas Conservation Commission September 11, 1989 Telecopy No. (907) 276-7542 ADMINISTRATIVE APPROVAL NO. 220.1 Re: Follow-up pressure measurements in Prudhoe Bay' Unit wells. '"D. F. Scheve Operations Engineering Mgr. ARCO Alaska, Inc. P. O. Box 100360 ~%chorage, AK 99510-0360 T. B. Gray Mgr. 'Reservoir Surveillance BP Exploration (Alaska), Inc. P. O. Box 196612 Anchorage, AK 99519-6612 Dear Sirs We have received your request of August 21, 1989. The Con~ission has reviewed the pressure monigoring requirements for the Prudhoe Bay Oil Pool. The surveillance of the Prudhoe Bay Oil Pool would not be diminished should Rule 6b as amended b . Rule 2, the follow-up 'pressure s~rMe¥~requir~d by Conservation (CO) 165, y/CO 220~ be eliminated. Therefore uhe Commission waives the requirements of CO 165, Rule 6b, as amended by CO 220, Rule 2. C.onm]issioner dli:RAD/3.AA220 ALASKA OIL A~D GAS CONSERVATION COM~IISSION WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907') 279-14.33 TELECOPY: (907} 2767542 May 1, 1992 Chris J. Phillips, Manager Prudhoe Bay Petroleum Engineering BP Exploration (Alaska) Inc. P. O. Box 196612 Anchorage, Alaska 99519-6612 Re: Pressure monitoring, Prudhoe Oil Pool Dear Mr. Phillips: The Commission thanks the Prudhoe Bay Unit operators for the presentation regarding Transient Rate and Pressure (TRAP) analysis techniques being proposed for selected wells. It is encouraging to see the operators continue to apply innovative technology to' monitoring reservoir performance. The Commission agrees that TRAP is a type of multi-rate pressure transient analysis and therefore qualifies as a valid pressure monitoring technique under Rule 7 of Conservation 0~rder 220:~ Sincerely, Chairman ALASKA OIL AND GAS CONSERVATION COMMISSION WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 May 1, 1992 Don F. Scheve, Manager Prudhoe Bay Operations Engineering ARCO Alaska, Inc. P. O. Box 100360 Anchorage, Alaska 99510-0360 Re: Pressure monitoring, Prudhoe Oil Pool Dear Mr. Scheve: The Commission thanks the Prudhoe Bay Unit operators for the presentation regarding Transient Rate and Pressure (TRAP) analysis techniques being proposed for selected wells. It is encouraging to see the operators continue to apply innovative technology to monitoring reservoir performance. The Commission agrees that TRAP is a type of multi-rate pressure transient analysis and therefore qualifies as a valid pressure monitoring technique under Rule 7 of Conservation Order 220. Sincerely, David W. Chairman BP EXPLORATION April 27, 1992 David W. Johnston, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 c' BP Exploration (Alaska)Inc. RES ENG 900 East Benson Boulevard P.O. Box 196612 SR ENG Anchorage, Alaska 99519-6612 SR ENG (907) 561-5111 ENG ASST STAT TECHI S-TAT TECHI t i]FILE ~.t Dear Chairman Johnston: BP Exploration (Alaska) Inc. and ARCO Alaska Inc., as Prudhoe Bay Unit Operators, request approval to submit Transient Rate and Pressure (TRAP) analyses in compliance with Conservation Order 220, Rule 7 for selected wells. This technique, using transient rate with transient pressure to monitor reservoir pressure, allows for accurate early time analyses and decreases the time a well is not producing at optimum capacity. As detailed in our informal meeting with the Commission on April 23, 1992, TRAP analysis is a type of multi-rate pressure transient analysis that utilizes rate convolved pressures. This technique requires downhole rate and pressure measurements to be recorded simultaneously. Convolved pressure data allows conventional pressure transient analysis techniques to be applied to early, afterflow dominated, pressure data. Therefore, in some wells a lengthy shut-in period will be reduced, allowing these wells to be returned to full production much earlier. Please advise at your earliest convenience as to the Commission's decision regarding this proposal. Sincerely, Chris J. Phillips, Manager Prudhoe Bay Petroleum Engineering BP Exploration (Alaska)Inc. CJP/DFS/smf RE 6.1 Don F. Scheve, Manager Prudhoe Bay Operations Engineering ARCO Alaska, Inc. RECEIVED APR -3 0 1992 Alaska Oil & G~s Oons. Anchorage ARCO Alaska, Inc.~'~ Prudhoe Bay Engineering Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 263 4248 Donald F. Scheve Operations Engineering Manager August 21, 1989 C. V. Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Re: Amendment to Rule 2, Conservation Order Number 220 Dear Mr. Chatterton: The operators of the Prudhoe Bay Unit, BP Exploration (Alaska), Inc. and ARCO Alaska, Inc., request a change to Conservation Order No. 220 regarding repeat pressure monitoring surveys in new wells. We feel a change will result in more efficient monitoring of the reservoir pressure through increased operator flexibility in choosing the location of pressure surveys. Conservation Order No. 220, Rule 2, requires a repeat survey in each new well within the first 12 months of regular production. We propose deleting Rule 2 while leaving intact the other provision of this Conservation Order. Prudhoe Bay drilling programs are now concentrated in localized areas of the field utilizing relatively close well spacing (e.g., Eileen West End drilling on 80-acre well spacing). The follow-up pressure surveys, as currently required, can lead to a high concentration of measurements within small areas of the field. This limits their value when used to map areal pressures and to determine field pressure trends. It also causes inefficient production interruptions when the wells are shut in to gather this data. In the course of normal field operations, there are often opportunities to gather information while minimizing production impacts. The flexibility to take advantage of these opportunities would allow the goals of the pressure monitoring program to be met, while minimizing production loss. The proposed deletion of Conservation Order No. 220, Rule 2, is not intended to affect Rule 6 which specifies the total number of annual pressure surveys required for the Eastern and Western Operating Areas of the field. It will, however, .allow pressure surveillance programs to be designed to 1) efficiently provide the field-wide pressure information necessary for reservoir management, and 2) minimize the effect on field production rate. ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany RECEIVED SE}> o s t999 Alaska Oil & Gas Cons. Commisslor~ Anchorage AR3B--6132-C C. V. Chatterton August 21, 1989 Page 4 If you require additional information, please do not hesitate to call. Sincerely, D. F. Scheve Operations Engineering Manager ARCO Alaska Inc. ~~urveillance BP Exploration (Alaska), Inc. Notice of Public Hearing STATE OF ALASKA Alaska Oil and Gas Conservation Commission Re: Application of ARCO Alaska, Inc. and Standard Alaska Production Company to revise Pressure Survey rules in Conservation Orders 165, 208 and 213. ARCO Alaska, Inc. and Standard Alaska Production Company, operators of the Prudhoe BaY Unit, by letter of September 26, 1986, have requested changes to Pressure Survey rules contained in Conservation Orders 165, 208 and 213. The objective of the proposed changes is to establish operator flexibility with regard to monitoring reservoir pressure in a manner which will allow the technical value of all surveys to be maximized. A person who may be harmed if the requested order is issued may file a written protest with the Alaska oil and Gas Conserva- tion Commission, 3001 Porcupine Drive, Anchorage, Alaska 99501 and request a hearing on the matter. If the protest is filed timely and raises a substantial and material issue CrUcial to 'th~ Commissio6"s determination, a hearing on the matter will be" held at the above'address at 9:00 a.m. on November 6, 1986, in con- 'formance with 20 AAC 25.540.. If a hearing is to be held, 'interested parties may confirm this by calling the Co~ission's office, (907) 279-1433, after October 20, 1986. If n° proper protest .is filed, the Commission will consider the issuance of the order without a hearing. Commissioner Alaska Oil and Gas Conservation Commission Published October 4, 1986 .,STATE Of ALASKA ADVERTISING ORDER A0- ADVERTISING ORDER NO. 08-5574 F Anchorage Daily News P. O. Box 149001 Anchorage, Alaska 99514-9001 Alaska Oil & Gas Cc~servation Com~ssion 3001 Porcupine Drive Anchorage, Alaska 99501 AGENCY CONTACT PHONE (907) 279-1433 DATES ADVERTISEMENT REQUIRED: DATE OF A.O. Oc~:o~er 2, 1986 October 4, 1986 SPECIAL INSTRUCTIONS: AFFIDAVIT OF PUBLICATION UNITED STATES OF AMERICA STATE OF ~ ~ DIVISION. SS BEFORE ME, THE UNDERSIGNED, A NOTARY PUBLIC THIS DAY PERSONALLY APPEARED WHO, BEING FIRST DULY SWORN, ACCORDING TO LAW, SAYS THAT ....· - ADVERTISEMENT, OF WHICH THE ANNEXED IS A TRUE COPY, WAS PUBLISHED IN SAID PUBLICATION ON THE ~ DAY OF CONSECUTIVE DAYS, THE LAST PUBLICATION APPEARING ON THE ~DAYOF /~'~--~ 19 ~,ANDTHATTHE RATE CHARGED THEREON IS NOT IN EXCESS OF THE RATE SUBSCRIBED AND SWORN TO BEFORE ME THIS ~ DAY OF C~,~.~%, 19~ NOTAR; ~:Ltd~ f6~ STA:OF MY COMMISSION EXPIRES ~___~._~__~.._~ .... Lt~ ~ REMINDER, , INVOICE MUST BE IN TRIPLICATE AND MUST REFERENCE THE ADVERTISING ORDER NUMBER. A CERTIFIED COPY OF THIS AFFIDAVIT OF PUBLICATION MUST BE SUBMITTED WITH THE INVOICE. ATTACH PROOF OF PUBLICATION HERE. · ' .Notlce.~i~ubllc'Hearlng -- , f'.AECO Alas- Alaska i to 'reVise !'"~Pres~ure '.Survey, 'rules In Con- ' servitlo'n: :' Orders 1~5',. 208 and datd' AlaSEa' P~Ctlon Com- pany, o~e~ators ~'the prudhoe '~ay: ,U~it;:,b~ leffer of Septem; · be~,, 26~ ,,19~,,,,':have reqUested C~anges" tO",:;',Ptessure survey rUleS contained ~'ln, con~rvatlon O~,erE 1~: ,2~ :,and: 213 Thq ,' :oole,CtlVe',,,',,:;O'f 't'he. proPOsea Changes is,,,tQ~establls~ operator , fl'eXlbllity;~l~h' re~ard't6 monF toting reservoir'~ressu're n a ,manner 'WhiCh' will ~llOW the teChnlcal'~elue ~ ~11' Surveys tb .I.f: fhe.".requested', 'Order :Is Issued .~ay tlle...a,,wriffen, pr~test .With the Alaska OII and Gas Con~r- vation Commission, 3~1 Porcu- pine Drive, Anchorage, Alaska ~1 and request a hearing on the maffer. If the protest Is fll~ timely an~ raises' a sub- ttantlal and material Issue cru- cial to th~ Commission's deter. 'ruination, a hearing on the '~ a~ve .addreSs at:..~=0~ :a.m. on '-eerlng'~s.'m;be~eld,.mterested · p'~Hies".may confirm' .this by call[n0 the C0mmlssi0n's ~lce, (~7) 2~-1~;' .after October 20; ~1.9~. If .no .proper' priest is '~laer.':ffie Issuance' of the order WithoUt a hearing: ..:." ' '.commmsl0ner .: ' ;.Alaska Oil .and GaS 'Con'tva. tlon 'Commission '' ' Pub: October 4, 19~ ,, ,, , 02-901 (Rev. 6-85) PUBLISHER Arco Alaska, Inc. P. O. Box 100350 Anchorage, AK 99510 Standard Alaska Production Company P. 0. Box 195612 Anchorage, AK 99519 September 26, 1986 C. V. Chatterton, Chairman Oil and Gas Conservation Commission State of Alaska 3001 Porcupine Drive Anchorage, AK 99501 Dear Mr. Chatterton: Alaska Oil a Gas Cons. Anchora!]~ Amendment to Rule 6, Conservation Order Number 165 The operators of the Prudhoe Bay Unit, Standard Alaska Production Company and Arco Alaska, Inc., request changes to Rule 6 of Conservation Order No. 165. The proposed amendments were discussed with you at our meeting of August 12, 1986. The objective is to establish operator flexibility with regard to monitoring reservoir pressure in a manner which will allow the technical value of all surveys to be maximized. Rule 6 Proposed amendments to Rule 6 are provided in Attachment I. A discussion of these changes follows: (a) We request that the term "initial sustained production" be replaced by "regular production", consistent with the definition of "regular" which was recently officially introduced. In addition, we request that the initial pressure survey requirement can be fulfilled by a pressure transient survey should a pressure transient survey be required for technical reasons. C. V. Chatterton, Chairman Page 2 (b) We request that a pressure static or transient survey may be used to fulfill the follow-up survey requirement since the primary objective of the follow-up survey is to determine reservoir pressure. During the first nine years of production at Prudhoe Bay, a sizeable pressure build-up data base has been established. Routine pressure build-up surveys are no longer required to determine the production characteristics of select areas of the reservoir. In addition, a time limit of twelve months is requested in place of the current six-month limit. An extension of this time limit will provide the operators with additional flexibility regarding repeat pressure survey timing, thus allowing timing to be optimized based on varying increased voidage rates associated with new wells. (c) & (d) Key well and governmental pressure survey requirements limit flexibility with regards to pressure survey site optimization. Pressure surveillance will be distributed in all areas of the field, however, with waterflood underway, the focus of pressure surveillance is now on the waterflood and gravity drainage/waterflood interaction areas. A "minimum- number of surveys" requirement would allow application of surveys to areas which require the maximum technical evaluation from a reservoir 'management perspective. The operators would inform the Commission of the planned distribution of the required pressure surveys by December i of the year preceding the year during which the pressure surveys will be run. (e) Included as per Conservation 0rder No. 208, Rule 3 (amending Rule 6(e), Conservation Order No. 165). (f), (g), & (h) These sections have been included and/or modified to be consistent with the changes outlined above and Conservation Order No. 213, Rule 1 (amending Rule 6(h), Conservation Order No. 165). As noted, the primary purpose of the requested amendments is to afford the operators greater flexibility in fulfilling the Prudhoe Bay Unit's surveillance needs and reporting requirements. It does not represent an attempt to reduce the number of pressure Surveys required, but does represent an attempt to accomplish a more prudent distribution of required surveys. If you desire any further information in support of the requested changes, please feel free to contact us. D. F. Scheve Arco Alaska, Inc. T. N Standard Alaska Production Company Attachment RECEIVED SEi 2 Anchorag~ Attachment I Prudhoe Bay Field Prudhoe 0il Pool Conservation Order No. 165 Rule 6 Pressure Surveys (a) Prior to regular production, a static bottomhole or transient pressure survey shall be taken on each well. (b) Within the first twelve months following the regular production from each well, a static bottomhole or transient pressure survey shall be taken. (C) & (d) A minimum of 95 and 87 static bottomhole or transien~ pressure surveys shall be run annually in the Western Operating Area and Eastern Operating Area, respectively. The surveys required in either (a) or (b) of this rule can be used to fulfill the minimum requirement. (e) Data from the surveys required in (a), (b), (c) and (d) of this rule shall be filed with the Commission by the last day of the month following the month in which each survey is taken. Form 10-412, Reservoir Pressure Report, shall 'be used to report the data from these surveys. Data submitted shall include rate, pressure, time, depths~ temperature and any well condition necessary for complete analysis of each survey. The datum for the pressure surveys is 8800 feet subsea. Transient pressure surveys obtained by a shut-in buildup test, an injection well pressure fall-off test, a multi-rate test or an interference test are acceptable. Other quantitative methods may be administratively approved by the Commission. (f) & (g) Results and data from any special reservoir pressure monitoring techniques, tests or surveys shall also be submitted as prescribed in (e) of this rule. (h) By administrative order the Commission may grant time extensions and waive requirements of this rule and by administrative order the Commission may require additional pressure surveys in (c) & (d) of this rule. 5072m