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Home My WebLink About209-083Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 1400 Anchorage, AK 99503 Phone: (907) 564-4891 02/09/2024 Mr. Mel Rixse Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Re: Prudhoe Bay Surface Casing by Conductor Annulus Top-offs of Cement, Corrosion Inhibitor through 02/09/2024. Dear Mr. Rixse, Enclosed please find a copy of a spreadsheet with a list of Prudhoe Bay wells that were topped-off with cement, corrosion inhibitor in the surface casing by conductor annulus through 02/09/2024. Cement top-offs are executed as needed to mitigate the void space left at surface by minor cement fallback during the primary surface casing by conductor cement job. The remaining void space between the top of the cement and the top of the conductor is filled with a heavier than water corrosion inhibitor to reduce the risk of external surface casing corrosion. The attached spreadsheets include the well names, API and PTD numbers, treatment dates and volumes. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404 Report of Sundry Operations. If you have any additional questions, please contact me at 564-4891 or oliver.sternicki@hilcorp.com. Sincerely, Oliver Sternicki Well Integrity Supervisor Hilcorp North Slope, LLC Digitally signed by Oliver Sternicki DN: cn=Oliver Sternicki, c=US, o=Hilcorp North Slope LLC, ou=PBU, email=oliver.sternicki@hilcorp.com Date: 2024.02.09 11:15:58 -09'00' Oliver Sternicki Hilcorp North Slope LLC. Surface Casing by Conductor Annulus Cement, Corrosion Inhibitor Top-off Report of Sundry Operations (10-404) 02/09/2024 Well Name PTD #API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date L-293 223020 500292374900 30 8/29/2023 S-09A 214097 500292077101 2 9/19/2023 S-102A 223058 500292297201 2 9/19/2023 S-105A 219032 500292297701 10 9/19/2023 S-109 202245 500292313500 7 9/19/2023 S-110B 213198 500292303002 35 9/19/2023 S-113B 202143 500292309402 10 9/19/2023 S-115 202230 500292313000 4 9/19/2023 S-116A 213139 500292318301 4 9/19/2023 S-117 203012 500292313700 3 9/19/2023 S-118 203200 500292318800 9 9/19/2023 S-122 205081 500292326500 5 9/19/2023 S-125 207083 500292336100 2 9/19/2023 S-126 207097 500292336300 3 9/19/2023 S-134 209083 500292341300 35 9/19/2023 S-200A 217125 500292284601 7 9/19/2023 S-202 219120 500292364700 13 9/19/2023 S-210 219057 500292363000 10 9/19/2023 S-213A 204213 500292299301 4 9/19/2023 S-215 202154 500292310700 3 9/19/2023 S-216 200197 500292298900 4 9/19/2023 S-41A 210101 500292264501 3 9/19/2023 W-16A 203100 500292204501 2 9/23/2023 W-17A 205122 500292185601 3 9/23/2023 S-134 209083 500292341300 35 9/19/2023 Well Name PTD # API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date W-19B 210065 500292200602 8 9/23/2023 W-21A 201111 500292192901 8 9/23/2023 W-32A 202209 500292197001 4 9/23/2023 W-201 201051 500292300700 44 9/23/2023 W-202 210133 500292343400 6 9/23/2023 W-204 206158 500292333300 3 9/23/2023 W-205 203116 500292316500 3 9/23/2023 W-207 203049 500292314500 3 9/23/2023 W-211 202075 500292308000 8 9/23/2023 W-213 207051 500292335400 3 9/23/2023 W-214 207142 500292337300 10 9/23/2023 W-215 203131 500292317200 2 9/23/2023 W-223 211006 500292344000 7 9/23/2023 Z-69 212076 500292347100 2.0 27 1.5 10/24/2023 S-128 210159 500292343600 11 12/27/2023 S-135 213202 500292350800 16 12/27/2023 V-113 202216 500292312500 24 12/31/2023 V-114A 203185 500292317801 5 12/31/2023 V-122 206147 500292332800 5 12/31/2023 V-205 206180 500292333800 2 12/31/2023 V-207 208066 500292339000 8 12/31/2023 V-214 205134 500292327500 5 12/31/2023 V-215 207041 500292335100 2 12/31/2023 V-218 207040 500292335000 5 12/31/2023 V-224 208154 500292340000 16 12/31/2023 V-225 209118 500292341900 6 12/31/2023 V-01 204090 500292321000 3 1/1/2024 V-02 204077 500292320900 5 1/1/2024 V-04 206134 500292332200 5 1/1/2024 V-102 202033 500292307000 8 1/1/2024 V-104 202142 500292310300 5 1/1/2024 V-220 208020 500292338300 4 1/1/2024 MEMORANDUM TO: Jim Regg C 1 Z11017,61,111— P.I. Supervisor C FROM: Brian Bixby Petroleum Inspector NON -CONFIDENTIAL State of Alaska Alaska Oil and Gas Conservation Commission DATE: Monday, February 14, 2022 SUBJECT: Mechanical Integrity Tests Hilcorp North Slope, LLC S-134 PRUDHOE BAY UN AURO S-134 Src: Inspector Reviewed By: P.I. Supry 1Jr."'— Comm Well Name PRUDHOE BAY UN AURO S-134 API Well Number 50-029-23413-00-00 Inspector Name: Brian Bixby Permit Number: 209-083-0 Inspection Date: 2/5/2022 Insp Num: mitBDB220205155450 Rel Insp Num: Packer Depth Pretest Well S-134 Type Inj ; c "TVD 6520 - Tubing 2803 PTD 2090830 ' Type Test �� SPT Nest psi , 1630 IA i 103 BBL BBL Pumped: 23 Returned: 2.3 OA o - Interval 4YRTST P/F P Notes: Initial 15 Min 30 Min 45 Min 60 Min 2807 2806 - 2807 - — 2296 2195 - 2183 0 Monday, February 14, 2022 Page 1 of 1 Hilcorp North Slope, LLC Stan Golis, PBW Operations Manager 3800 Centerpoint Dr, Suite 1400 Anchorage, Alaska 99503 9/21/2020 Mr. Jim Regg Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: WAG Injectors S-31 (PTD # 1982200) and S-134 (PTD # 2090830) SVS performance testing non-compliance incident investigation findings and corrective actions. Dear Mr. Regg, On 8/15/2020 WAG Injectors S-31 (PTD # 1982200) and S-134 (PTD # 2090830) were placed on MI injection. On 9/1/2020, it was found that the required SVS performance testing was not completed per AOGCC requirements. After discovering this non-compliance, performance tests were immediately scheduled and completed successfully on 9/1/2020 along with initiating an investigation into why these tests were originally missed. There were two contributing factors for missing these required SVS performance tests: 1) During the week of 8/12 – 8/19/2020 there was a step-up Field Ops Lead covering the role. 2) The SVS tool that tracks testing requirements coming due did not flag these wells for requiring a test. Findings concerning item #1: The GC2 Field Ops lead is responsible for scheduling required SVS testing in the GC2 area. During this week the normal Ops Lead was on vacation and another Wellpad operator was “stepped up” to cover these responsibilities. The guidance the individual was provided was to monitor the SVS tool to schedule required testing and work with the GC1 Field OPS lead for support if there are any questions. Since the tests were never flagged in the SVS Tool as required they were overlooked. Additionally the wellpads normally operated by the step-up Wellpad operator do not have any WAG wells so they were not immediately familiar with this requirement. Had another operator more experienced with WAG wells or the permanent Field Lead been on shift their experience would have likely resulted in scheduling the tests rather than relying solely on the SVS tool. Corrective action for item #1: Prior to Field Ops Lead taking vacation, review planned field activity with the step-up lead operator and provide a list of activity in written handover that may trigger SVS performance testing. Findings concerning item #2: In the week of 8/10/2020 a manual date change was made to the database which supplies injector service type (MI vs. produced water) information to the SVS tool and daily exception reports. This change caused the database tracking well service type to stop updating. When S- 31 and S-134 were swapped to MI service on 8/15/2020 the database continued to show that the wells were on water injection and continued to do so until 8/31/2020. On 8/31/2020 the database with the injector service type information was refreshed with updated data causing S- 31 and S-134 to show as overdue for performance testing in the SVS tool and the daily exception reports on the morning of 9/1/2020. Corrective action for item #2: The logic for the database supplying injector service type information to the SVS tool and daily exception reports has been corrected such that a manual date change to the database will not cause the data to stagnate. This has been implemented and successfully tested. If you have any questions, please call me at 907-564-5231 Sincerely, Stan Golis PBW Operations Manager Digitally signed by Stan Golis DN: cn=Stan Golis, ou=Users Date: 2020.09.22 09:32:09 - 08'00' Stan Golis Pf3c�_ s.-) 3¢ PIN X10630 Regg, James B (CED) From: Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Sent: Friday, September 4, 2020 2:46 PM � ,; g11t I Lipa To: Regg, James B (CED) l Cc: Alaska NS - PB - Field Well Integrity; Stan Golis; Bo York Subject: Update: WAG Injectors S-31 and S-134 lapsed on SVS Performance Test M r. Regg, The investigation into the S-31 (PTE) # 1982200) and S-134 (PTE) # 2090830) SVS performance testing noncompliance incident is still ongoing, but I wanted to give you a status update. We have confirmed that the service type for these wells was correctly changed by the board operator at the time of the transition from water to MI. We have not yet discovered why the daily exception reports and SVS tool did not register this change and therefore alert personnel to the testing requirement, but our IT group is continuing to investigate. As a temporary measure to ensure no other SVS noncompliance incidents occur manual SVS reports are being run daily and are being reviewed by the lead operators and well integrity. Let me know if you have any questions. Regards, Oliver Sternicki Hilcorp North Slope LLC Well Integrity Engineer Office: (907) 564 4891 Cell: (907) 350 0759 Oliver.Sternicki@hilcorp.com From: Regg, James B (CED) [mailto:jim.re R@alaska.gov] Sent: Tuesday, September 1, 2020 10:40 AM To: Alaska NS - PB - Field Well Integrity<PBFieldWelllntegrity@hilcorp.com> Cc: Bo York <byork@hilcorp.com>; John Menke <jmenke@hilcorp.com>; Stan Golis <sgolis hilcorp.com> Subject: [EXTERNAL] RE: WAG Injectors S-31 and S-134 lapsed on SVS Performance Test When completed, provide a copy of Hilcorp's investigation report including corrective actions relating to Hilcorp's regulatory tracking efforts that address the noncompliance. This request is in accordance with 20 AAC 25.300. Jim Regg Supervisor, Inspections AOGCC 333 W.7th Ave, Suite 100 Anchorage, AK 99501 907-793-1236 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 Jim Regg at 907- 793-1236 or jim.regg@alaska.gov. From: Alaska NS - PB - Field Well Integrity<PBFieldWelllntegrity@hilcorp.com> Sent: Tuesday, September 1, 2020 10:31 AM To: Regg, James B (CED) <jim.regg@alaska.gov> Cc: Alaska NS - PB - Field Well Integrity<PBFieldWelllntegrity@hilcorp.com>; Bo York <byork@hilcorp.com>; John Menke <jmenke@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: WAG Injectors S-31 and 5-134 lapsed on SVS Performance Test Mr. Regg, As a follow up to our phone discussion this morning, WAG Injectors S-31 (PTD # 1982200) and S-134 (PTD # 2090830) were found to be out of compliance and overdue for AOGCC required SVS performance testing. Here is what we know so far: S-31 • Was on MI from 03/20/18 — 08/09/18. • Last misc. SVS performance test while on MI performed on 03/25/18 • Shut-in from 08/09/18 — 02/19/19 • Was on PWI from 02/19/19 — 8/10/20 • Last SVS function test while on PWI performed on 03/31/20 • Put on MI on 08/15/20. A performance test was not scheduled. S-134 • Was on MI from 01/02/18 — 08/09/18 • Misc. performance test completed 01/06/18 and routine performance test completed on 02/27/18 • Shut-in from 08/09/18 — 01/31/19 • Was on PWI from 01/31/19 — 08/10/20 • Last SVS function test while on PWI performed on 02/25/20 • Put on MI on 08/15/20. A performance test was not scheduled. A witnessed performance test has been scheduled with an AOGCC inspector for both wells. Hilcorp will be conducting an investigation as to why a performance test was not performed within 5 days of putting the well on Miscible Gas Injection. Please feel free to give me a call or email me if you have any questions. Thanks, Andy Ogg Hilcorp Alaska LLC Field Well Integrity/ Compliance andrew.o hilcorp.cam P: (907) 659-5102 M: (307)399-3816 The information contained in this email message is confidential and may legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. P5U (34 Regg, James B (CED) P Zg063G From: Regg, James B (CED) Sent: Tuesday, September 1, 2020 10:40 AM To: Alaska NS - PB - Field Well Integrity Cc: Bo York; John Menke; Stan Golis Subject: RE: WAG Injectors S-31 and S-134 lapsed on SVS Performance Test When completed, provide a copy of Hilcorp's investigation report including corrective actions relating to Hilcorp's regulatory tracking efforts that address the noncompliance. This request is in accordance with 20 AAC 25.300. Jim Regg Supervisor, Inspections AOGCC 333 W.7t�' Ave, Suite 100 Anchorage, AK 99501 907-793-1236 CONFIDENTIALITYNOTICE: 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 Jim Regg at 907- 793-1236 or jim.regg@alaska.gov. From: Alaska NS - PB - Field Well Integrity <PBFieldWelllntegrity@hilcorp.com> Sent: Tuesday, September 1, 2020 10:31 AM To: Regg, James B (CED) <jim.regg@alaska.gov> Cc: Alaska NS - PB - Field Well Integrity <PBFieldWelllntegrity@hilcorp.com>; Bo York <byork@hilcorp.com>; John Menke <jmenke@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: WAG Injectors S-31 and S-134 lapsed on SVS Performance Test Mr. Regg, As a follow up to our phone discussion this morning, WAG Injectors S-31 (PTD # 1982200) and S-134 (PTD # 2090830) were found to be out of compliance and overdue for AOGCC required SVS performance testing. Here is what we know so far: S-31 • Was on MI from 03/20/18 — 08/09/18. • Last misc. SVS performance test while on MI performed on 03/25/18 • Shut-in from 08/09/18 — 02/19/19 • Was on PWI from 02/19/19 — 8/10/20 • Last SVS function test while on PWI performed on 03/31/20 • Put on MI on 08/15/20. A performance test was not scheduled. S-134 % • Was on MI from 01/02/18 — 08/09/18 • Misc. performance test completed 01/06/18 and routine performance test completed on 02/27/18 • Shut-in from 08/09/18 — 01/31/19 • Was on PWI from 01/31/19 — 08/10/20 • Last SVS function test while on PWI performed on 02/25/20 • Put on MI on 08/15/20. A performance test was not scheduled. A witnessed performance test has been scheduled with an AOGCC inspector for both wells. Hilcorp will be conducting an investigation as to why a performance test was not performed within 5 days of putting the well on Miscible Gas Injection. Please feel free to give me a call or email me if you have any questions. Thanks, Andy Ogg Hilcorp Alaska LLC Field Well Integrity/ Compliance aridrew.og@hilcorp.com P: (907) 659-5102 M: (307)399-3816 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. PJ • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Monday,March 05,2018 TO: Jim Regg ' 3151(€7 P.I.Supervisor '` SUBJECT: Mechanical Integrity Tests BP EXPLORATION(ALASKA)INC. S-134 FROM: Lou Laubenstein PRUDHOE BAY UN AURO S-134 Petroleum Inspector Src: Inspector Reviewed By: P.I.Suprv`1/Se-- NON-CONFIDENTIAL —NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UN AURO S-134 API Well Number 50-029-23413-00-00 Inspector Name: Lou Laubenstein Permit Number: 209-083-0 Inspection Date: 2/12/2018 Insp Num: mitLOL180212125648 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well l 5-134 -1Type Inj G TVD 6520 Tubing 3013 3007 • 3005- 3013 - PTD p'j'j) 2090830 'iType Test SPT 1TCSt psi, 1630 • IA 167 2500 - 2460 - 2459 . BBL Pumped: 26 -i ----- ---------- ,BBL Returned: 1 OA 15 25 - 26 26 Interval 4YRTST - P/F P Notes: SCANNED t4 : Monday,March 05,2018 Page 1 of 1