Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation Commission
Loading...
HomeMy WebLinkAboutERIO 008ERIO 8
Coyote Interval
1. August 11, 2022 CPAI application for Temp ERIO
2. September 2, 2022 Notice of public hearing, email list, bulk mail list,
Affidavit of publication
3. September 8, 2022 CPAI email for rescheduling hearing
4. October 26, 2022 Second notice of public hearing, email list, bulk mail list,
affidavit of publication
5. December 13, 2022 Hearing transcript and CPAI presentation
6. ----------------------- Progress reports
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
333 West 7th Avenue
Anchorage Alaska 99501
Re: THE APPLICATION OF ConocoPhillips
Alaska for authorization for injection into
the Coyote reservoir through a proposed
waterflood pattern pilot project within and
adjacent to the Kuparuk River Unit, North
Slope Borough, Alaska
)
)
)
)
)
)
)
)
)
Docket Number: ERIO-22-002
Enhanced Recovery Injection Order 8
Kuparuk River Unit
Coyote Reservoir
North Slope Borough, Alaska
January 4, 2023
IT APPEARING THAT:
1. By application received August 12, 2022, ConocoPhillips Alaska, Inc. (CPAI) requested the
Alaska Oil and Gas Conservation Commission (AOGCC) issue an order authorizing water (and
potentially gas) injection into the Coyote reservoir as a pilot enhanced oil recovery (EOR)
project within and adjacent to the Kuparuk River Unit (KRU) to test the injectivity of water
(and potentially gas) and subsequent production response.
2. Pursuant to 20 AAC 25.540, the Alaska Oil and Gas Conservation Commission (AOGCC)
tentatively scheduled a public hearing for October 6, 2022. On September 2, 2022, the AOGCC
published notice of that hearing on the State of Alaska’s Online Public Notice website and on
the AOGCC’s website, electronically transmitted the notice to all persons on the AOGCC’s
email distribution list and mailed printed copies of the Notice of Public Hearing to all persons
on the AOGCC’s mailing distribution list. On September 4, 2022, the notice was published in
the Anchorage Daily News.
3. No comments on the application or request for hearing were received.
4. On October 6, 2022, the AOGCC convened the hearing and continued it until November 8,
2022. CPAI agreed with that new hearing date and time.
5. On October 26, 2022, the AOGCC rescheduled the public hearing from November 8, 2022 to
November 29, 2022. On October 26, 2022, the AOGCC published notice of the rescheduled
hearing on the State of Alaska’s Online Public Notice website and on the AOGCC’s website,
electronically transmitted the notice to all persons on the AOGCC’s email distribution list and
mailed printed copies of the Notice of Public Hearing to all persons on the AOGCC’s mailing
distribution list. On October 30, 2022, the notice was published in the Anchorage Daily News.
6. On November 29, 2022, the AOGCC convened the hearing and continued it until December
13, 2022.
7. The hearing commenced at 10:00 a.m. on December 13, 2022. Testimony was received from
representatives of CPAI. The hearing record closed on December 13, 2022.
8. CPAI’s testimony and application, AOGCC records, and public records provide sufficient
information upon which to make an informed decision.
PURPOSE AND NEED FOR THIS ORDER:
Enhanced recovery regulations (20 AAC 25.402) are in place to ensure that EOR injection projects
are conducted in a manner that will lead to increased ultimate recovery, prevent the injected fluids
from escaping the injection interval, and protect sources of freshwater. Operators must apply for,
and be granted, an order that authorizes EOR injection before they can commence injection
operations. Part of the application process requires the operator to notify, and provide a copy of
the application to, all operators and surface owners within a ¼-mile radius of the proposed injection
ERIO 8
January 4, 2023
Page 2 of 6
well(s). For situations where the viability of a specific EOR process has not been demonstrated as
being effective in a certain application, such as this proposal to conduct water injection for EOR
purposes in the Coyote Interval, 20 AAC 25.450(b) allows the AOGCC to issue an injection order
approving a pilot EOR injection project to allow for the gathering of information necessary to
show whether or not it is viable before a full field project is pursued. Pilot project EOR orders are
usually time limited and often require different data collection and reporting requirements than a
conventional EOR injection order since the purpose of a pilot EOR injection project is to
demonstrate feasibility of a process before pursuing it on a fieldwide basis.
FINDINGS:
1. Affected Area: The Affected Area lies onshore within a portion of the KRU and adjacent non-
unitized lease ADL 392374, which lies adjacent to western boundary of the KRU, North Slope
Borough, Alaska. The proposed Coyote pilot EOR project will occur at KRU 3S-Pad drill site.
2. Owners and Landowners: CPAI is the owner and operator for the KRU and for lease ADL
392374. The State of Alaska, Department of Natural Resources, is the landowner of the
Affected Area.
3. Exploration, Delineation, and Production History: Sinclair's Colville 1 first discovered oil in
the Nanushuk Formation (Nanushuk) near the proposed pilot project area. Drilled and
completed during winter 1965-66 about three miles south-southwest of 3S-Pad, the well
encountered oil shows associated with C1 through C6+ gases in Nanushuk siltstone and
sandstone between 4,090' and 4,220' MD (-4,057 and -4,187' TVDSS) and in underlying
Torok sandstone from 5,290' to 5,440' MD (-5257 to -5407' TVDSS). The well also
encountered oil associated with C5 and C6+ gases in overlying, possibly Tuluvak-equivalent,
clay and siltstone strata between 2,590' and 2,710' MD (-2,557' to -2,677' TVDSS).
In 2001, Phillips Alaska, Inc.’s Palm 1 exploratory well—drilled from what is now 3S-Pad—
encountered oil shows with C1 through C5 gases in Nanushuk sandstone from 4,275’ to 4,570’
MD (-4,038’ to -4,279’ TVDSS). The well also displayed oil staining and C1 to C2 gases
from in Tuluvak-equivalent strata from 2,520’ to 2,710’ MD (-2,459’ to -2,649’ TVDSS), and
traces of oil stain and C1 and C2 gases from 3,260’ to 3,300’ MD (-3,186’ to -3,223’ TVDSS).
Seven development and service wells drilled to deeper reservoirs within the Kuparuk River
Unit have also penetrated the Coyote interval in and near the planned project area: 3S-03,
3S-21, 3S-22, 3S-23, 3S-24, 3S-24B, 3S-613, and 3S-625. Exploratory, redrilled well 3S-24B
penetrated and tested the Coyote interval.
4. Pool Identification: A formal pool has not been established for the middle Cretaceous-aged
(Albian-Cenomanian) Nanushuk reservoir sands of Kuparuk River Field. For the proposes of
this order, CPAI defines the affected sediments of the Nanushuk as the informally named
Coyote sands. These sands—and the accumulation of oil within them—are common to, and
correlate with, the interval in reference well Palm 1 between 4,270 and 5,115 feet MD (-4,038’
and -4,720’ TVDSS).
5. Geology:
a. Structure: At Coyote level, the regional structure is a paleo-shelf margin that plunges to
the northeast and southeast, has limited relief (about 100 feet), and displays a few small
four-way dip closures.
b. Stratigraphy: The Coyote reservoir consists of thinly bedded, delta-front, distal delta-
front, and pro-delta siltstones and sandstones deposited along a northeast-trending
paleo-shelf margin. Gross sand for interval averages 650 feet true vertical thickness
(TVT).
ERIO 8
January 4, 2023
Page 3 of 6
c. Rock Properties: Coyote sandstone porosities average about 23 percent, and
permeability ranges from 10 to 20 millidarcies.
d. Faults: One fault has been mapped within the proposed pilot project area, near the heel
of the planned production well. This small, normal fault strikes northwest, dips north-
east, is about 2,000 feet long, and has about 30 feet of maximum vertical displacement.
It is limited in vertical extent to the uppermost 200 feet of the Coyote reservoir and about
300 feet of the overlying Seabee Shale.
e. Trap Configuration and Seals: Coyote is predominantly a stratigraphic trap. The
reservoir sandstones pinch out to the west and shale out to the northeast, southeast and
southwest. Stratigraphic compartments and four-way dip closures may be present within
the reservoir and may contain small gas caps. Upper confinement is provided by about
350 true vertical feet of claystone, mudstone, and shale assigned to the Seabee
Formation. Lower confinement is provided by about 300 true vertical feet of mudstone
and siltstone assigned to the Torok Formation.
6. Reservoir Fluid Properties: Oil within the Coyote interval averages about 32° API gravity.
Analysis of a water sample collected from the Coyote reservoir in KRU 3S-24B indicates total
dissolved solids in the formation water exceed 21,000 mg/l.
7. In-Place Volume and Recoverable Estimates: CPAI estimates 31 million barrels of oil within
the proposed pilot project area. Primary recovery factor is estimated to be 5 to 10 percent, and
waterflood recovery is expected to be 20 to 30 percent. Potential injection of enriched gas is
anticipated to recover an additional 1 to 5 percent.
8. Project Scope Plans: The initial scope of CPAI’s proposed, three-year pilot project consists
of a central horizontal producer with one offsetting horizontal injector located about 1,500
feet to the west. Depending upon initial results, a second horizontal injector may be drilled
about 1,500 feet east of the producer.
9. Confining Layers for Injection: Upper confinement is provided by about 350 true vertical feet
of claystone, mudstone, and shale assigned to the Seabee Formation. Lower confinement is
provided by about 300 true vertical feet of mudstone and siltstone assigned to the Torok
Formation.
10. Injection Confinement and Pressure Monitoring within Nearby Wells: CPAI plans to fracture
stimulate the proposed pilot project wells. Existing wells KRU 3S-03 and KRU 3S-21—that
lie within a one-quarter mile radius of the pilot project and produce from, or inject into, the
underlying Kuparuk Formation—are currently open to the Coyote interval. CPAI testified that
the Coyote interval in KRU 3S-21 will be isolated with cement prior to fracture stimulation
of the proposed pilot project wells. CPAI proposes to monitor the more distant well KRU 3S-
03 for pressure changes during Coyote fracture stimulation.
11. Injection Pressure: The target injection pressure gradient for this pilot project is 0.61 psi/ft to
avoid fracturing the overlying Seabee Shale confining layer, which has an estimated fracture
gradient of 0.65 psi/ft. Sand-face injection pressure in each injector will be based on the actual
depth of the reservoir. CPAI plans further data collection to refine rock-strength estimates.
12. Fluid Compatibility: Produced water from 3S-24B and CPAI’s modeling indicates potential
for calcium carbonate and barium sulfate scaling. The planned pilot project wells will be
included in the Greater Kuparuk Area scale monitoring and inhibition program. CPAI plans
to collect a whole core while drilling the planned wells and will conduct additional water
compatibility testing as part of the core analysis program.
13. Injection Fluids: Planned injection fluids include produced water from KRU oil pools,
Beaufort seawater from the Kuparuk seawater treatment plant, hydraulic fracture fluids, tracer
survey fluids, wellbore injectivity improvement fluids, freeze protection fluids, and standard
ERIO 8
January 4, 2023
Page 4 of 6
oil field chemicals such as corrosion and scale inhibitors. CPAI also proposes potential
injection of produced gas from KRU oil pools and enriched hydrocarbon gas (indigenous
produced gas and/or imported natural gas liquids), which is informally termed “miscible
injectant.”
CONCLUSIONS:
1. Pursuant to 20 AAC 25.402 and 20 AAC 25.450(b), an Enhanced Recovery Injection Order
is appropriate to authorize the proposed pilot injection project in the Coyote interval within
the KRU.
2. Waterflood injection into the Coyote interval should substantially improve oil recovery, but
the technical and economic feasibility of conducting such an operation has not been
demonstrated.
3. Restricting injection pressure to a gradient of 0.61 psi/ft at the sand face will prevent the
overlying confining layer from fracturing. Collection, evaluation, and reporting of additional
rock-strength data will allow maximum injection pressure to be adjusted appropriately.
4. An aquifer exemption is not needed. Available information indicates that formation water in
the proposed Coyote injection interval exceeds 10,000 mg/l total dissolved solids;
accordingly, the aquifer is not a potential source of drinking water.
5. Regular monitoring and reporting of pressure within nearby well KRU 3S-03 is appropriate
for the duration of the proposed pilot project. However, the Coyote interval within KRU 3S-
03 must be cement-isolated immediately if a pressure increase is observed, or upon
completion of the pilot project in conformance with 20 AAC 25.030.
6. Uncertainties including rock-strength estimates, unproven reservoir and confinement
performance, and potential pressure effects on nearby wells that are currently open to the
Coyote interval preclude injection of produced or enriched gas at this time.
NOW THEREFORE IT IS ORDERED:
The underground injection of fluids for pressure maintenance and enhanced recovery is authorized
in the following area, subject to the following rules and 20 AAC 25, to the extent not superseded
by these rules:
Affected Area: Umiat Meridian
Township, Range Sections
T12N, R7E 24: E1/2, E1/2NW1/4
25: E1/2
T12N, R8E
18: S1/2SW1/4
19: W1/2, W1/2NE1/4, SE1/4
30: All
Rule 1 Authorized Injection Strata for Enhanced Recovery
Within the Affected Area, the Class II fluids specified in Rule 3 below may be injected for the
purposes of pressure maintenance and enhanced recovery into strata that correlate with, and are
common to, the interval in reference well Palm 1 between 4,270 and 5,115 feet MD.
ERIO 8
January 4, 2023
Page 5 of 6
Rule 2 Fluid Injection Wells
The injection of fluids must be conducted through a new well that has been permitted in
conformance with 20 AAC 25.005 as a service well for injection, or through an existing well that
AOGCC has approved for conversion to a service well for injection, in conformance with
20 AAC 25.280.
Rule 3 Authorized Fluids for Injection for Enhanced Recovery
Fluids authorized for injection are:
a. Produced water from the KRU;
b. Seawater from the Kuparuk Seawater Treatment Plant;
c. Tracer survey fluids to monitor reservoir performance. and
d. Fluids used to improve near wellbore injectivity (acids, solvents, etc.).
Rule 4 Authorized Injection Pressure for Enhanced Recovery
Injection pressures shall not exceed the maximum injection gradient of 0.61 psi/ft to ensure
containment of injected fluids within the defined Affected Area and injection interval.
Rule 5 Monitoring Tubing-Casing Annulus Pressure
Inner annulus, outer annulus, and tubing pressures for all injection and production wells, and any
well within the affected area that is not cemented across the Coyote interval shall be monitored
and recorded at least daily, except if prevented by extreme weather condition, emergency situation,
or similar unavoidable circumstances. All monitoring results shall be documented and provided to
the AOGCC on a monthly basis.
Rule 6 Demonstration of Tubing/Casing Annulus Mechanical Integrity
The mechanical integrity of each injection well must be demonstrated before injection begins,
before returning a well to service following any workover affecting mechanical integrity, and at
least once every two years. An AOGCC-witnessed mechanical integrity test (MIT) must be
performed after injection is commenced for the first time in a well, to be scheduled when injection
conditions (e.g., temperature, pressure, rate, etc.) have stabilized. Should the duration for this pilot
project be extended, subsequent tests must be performed at least once every two years thereafter.
Rule 7 Well Integrity and Confinement
Whenever any pressure communication, leakage, or lack of injection zone isolation is indicated by
an injection rate, operating pressure observation, test, survey, log, or any other evidence (including
outer annulus pressure monitoring of all wells within a one-quarter mile radius of where the Coyote
reservoir is not cemented), the operator shall notify the AOGCC by the next business day and
submit a plan of corrective action on a Form 10-403 for AOGCC approval. The Operator shall
immediately shut in the well if continued operation would be unsafe or would threaten
contamination of freshwater. A monthly report of daily tubing and casing annuli pressures and
injection rates must be provided to the AOGCC for all injection wells for which well integrity
failure or lack of injection zone isolation is indicated.
Rule 8 Notification of Improper Class II Injection
Injection of fluids other than those listed in Rule 3 without prior authorization is considered
improper Class II injection. Upon discovery of such an event, the operator must immediately notify
the AOGCC, provide details of the operation, and propose actions to prevent recurrence. This
requirement is in addition to and does not relieve the operator of any other obligations under the
ERIO 8
January 4, 2023
Page 6 of 6
notification requirements of any other State or Federal agency, regulation or law.
Rule 9 Other Conditions
If fluids are found to be fracturing the confining zone or migrating out of the approved injection
stratum, the operator must immediately shut in the injection wells and immediately notify the
AOGCC. Injection must not be restarted unless approved by the AOGCC.
Rule 10 Expiration Date
This Enhanced Recovery Injection Order shall expire three years after the month in which injection
activity commences unless an extension is granted by the AOGCC.
Rule 11 Reporting Requirements
By April 1st of each year, starting in 2024, the operator must submit a progress report on the pilot
injection project to the AOGCC. Within 90 days of the end of the pilot injection project, the
operator must submit a final report to the AOGCC. These reports shall include:
- Information on any adverse events related to the pilot injection project that may have
occurred,
- The average and maximum injection rates and pressures for each injection well during
injection activities (data from shut in periods shall be excluded when calculating the
average values),
- The results of any surveillance and/or tracer testing that was conducted,
- Discussion on whether an enhanced recovery response was noted in the producer(s), and
- Discussion of plans for the upcoming year.
DONE at Anchorage, Alaska and dated January 4, 2023.
Jessie L. Chmielowski Gregory C. Wilson
Commissioner Commissioner
RECONSIDERATION AND APPEAL NOTICE
As provided in AS 31.05.080(a), within 20 days after written notice of the entry of this order or decision, or such further time
as the AOGCC grants for good cause shown, a person affected by it may file with the AOGCC an application for reconsideration
of the matter determined by it. If the notice was mailed, then the period of time shall be 23 days. An application for
reconsideration must set out the respect in which the order or decision is believed to be erroneous.
The AOGCC shall grant or refuse the application for reconsideration in whole or in part within 10 days after it is filed. Failure
to act on it within 10-days is a denial of reconsideration. If the AOGCC denies reconsideration, upon denial, this order or
decision and the denial of reconsideration are FINAL and may be appealed to superior court. The appeal MUST be filed within
33 days after the date on which the AOGCC mails, OR 30 days if the AOGCC otherwise distributes, the order or decision
denying reconsideration, UNLESS the denial is by inaction, in which case the appeal MUST be filed within 40 days after the
date on which the application for reconsideration was filed.
If the AOGCC grants an application for reconsideration, this order or decision does not become final. Rather, the order or
decision on reconsideration will be the FINAL order or decision of the AOGCC, and it may be appealed to superior court. That
appeal MUST be filed within 33 days after the date on which the AOGCC mails, OR 30 days if the AOGCC otherwise
distributes, the order or decision on reconsideration.
In computing a period of time above, the date of the event or default after which the designated period begins to run is not
included in the period; the last day of the period is included, unless it falls on a weekend or state holiday, in which event the
period runs until 5:00 p.m. on the next day that does not fall on a weekend or state holiday.
Jessie L.
Chmielowski
Digitally signed by
Jessie L. Chmielowski
Date: 2023.01.04
10:49:06 -09'00'
Gregory
Wilson
Digitally signed by
Gregory Wilson
Date: 2023.01.04
13:01:07 -09'00'
From:Carlisle, Samantha J (OGC)
To:AOGCC_Public_Notices
Subject:[AOGCC_Public_Notices] Enhanced Recovery Injection Order 8 (Kuparuk River Unit)
Date:Wednesday, January 4, 2023 2:25:03 PM
Attachments:erio8.pdf
Re: THE APPLICATION OF ConocoPhillips Alaska for authorization for injection into the
Coyote reservoir through a proposed waterflood pattern pilot project within and adjacent
to the Kuparuk River Unit, North Slope Borough, Alaska
Samantha Carlisle
AOGCC Special Assistant
Alaska Oil and Gas Conservation Commission
333 West 7th Avenue
Anchorage, AK 99501
(907) 793-1223
__________________________________
List Name: AOGCC_Public_Notices@list.state.ak.us
You subscribed as: samantha.carlisle@alaska.gov
Unsubscribe at:
https://list.state.ak.us/mailman/options/aogcc_public_notices/samantha.carlisle%40alaska.gov
Bernie Karl
K&K Recycling Inc.
P.O. Box 58055
Fairbanks, AK 99711
mailed 1/4/23
6
March 14, 2024
Alaska Oil and Gas Conservation Commission
333 West 7
th Avenue, Suite 100
Anchorage, AK 99501
Attention: Commissioner Brett Huber
RE:
x 2023 ERIO6 Narwhal Pilot Injection Project Final Progress Report
x Form 10-412 for ERIO6 Narwhal Undefined Oil Pool
Dear Commissioner Huber,
ConocoPhillips Alaska, Inc., as operator and sole working interest owner of the Colville River
Unit, submits the 2023 annual progress report on the Narwhal pilot injection project in
accordance with Rule 11. This will be the final report related to ERIO6 due to the termination of
ERIO6 and its administrative approvals by the Alaska Oil and Gas Conservation Commission as of
December 19, 2023.
Sincerely,
Ian Ramshaw
Manager
Western North Slope Asset Development
Ian Ramshaw
WNS Asset Development Manager
ConocoPhillips Alaska, Inc.
PO Box 100360
Anchorage, Alaska 99510-0360
Phone: (907) 263-4464
2023 ERIO6 Narwhal Pilot Injection Project Final Progress Report
2023 ERIO6 Narwhal Pilot Injection Project Final Progress Report
ConocoPhillips Alaska, Inc., as operator and sole working interest owner of the Colville River
Unit, submits the 2023 annual progress report on the Narwhal pilot injection project in
accordance with Rule 11. Rule 11 reporting requirements state that by April 1 of each year,
starting in 2021, the operator must submit a progress report on the pilot injection project to the
Alaska Oil and Gas Conservation Commission (AOGCC). Within 90-days of the end of the pilot
injection project the operator must submit a final report to the AOGCC. These reports shall
include:
x Information on any adverse events related to the pilot injection project that may have
occurred,
x The average and maximum injection rates and pressures for each injection well during
injection activities (data from shut in periods shall be excluded when calculating the
average values),
x The results of any surveillance and/ or tracer testing that was conducted,
x Discussion on whether an enhanced recovery response was noted in CD4 -595, and
x Discussion of plans for the upcoming year.
A: Information on any Adverse Events Related to the Pilot Injection Project that may have
Occurred
No adverse events related to the pilot injection project were noted.
B: The Average and Maximum Injection Rates and Pressures for each Injection Well During
Injection Activities
CD4-594 and 597 are currently active injectors in the Narwhal pilot program. Average monthly
water injection rate and wellhead pressure for CD4-594 are shown on the table below:
Month Inj. BWPD Wellhead psi
Jan-23 1725 1094
Feb-23 1512 1097
Mar-23 1698 1094
Apr-23 947 1083
May-23 0 0
Jun-23 0 0
Jul-23 0 0
Aug-23 0 0
Sep-23 0 0
Oct-23 0 0
Nov-23 0 0
Dec-23 843 846
Jan-24 1971 893
2023 ERIO6 Narwhal Pilot Injection Project Final Progress Report
The maximum daily rate of CD4-594 in 2023 was 2,879 BWPD and maximum daily wellhead
pressure in 2023 was 1,172 psi.
Average monthly water injection rate and wellhead pressure for CD4-597 are shown on the table
below:
Month Inj. BWPD Wellhead psi
Jan-23 0 0
Feb-23 0 0
Mar-23 0 0
Apr-23 0 0
May-23 0 0
Jun-23 0 0
Jul-23 0 0
Aug-23 0 0
Sep-23 0 0
Oct-23 1688 210
Nov-23 61 252
Dec-23 987 268
Jan-24 2148 318
The maximum daily rate of CD4-597 in 2023 was 3,119 BWPD and maximum daily wellhead
pressure in 2023 was 1,440 psi.
C: The Results of any Surveillance and/or Tracer Testing that was Conducted
Downhole pressure monitoring indicated sand continuity between injector and producer during
injection pulse testing. No inter-well tracer testing was performed to confirm continuity. No new
surveillance specific tests have been conducted since the last report. The wells are now on long
term production & injection.
D: Discussion on Whether an Enhanced Recovery Response was Noted in CD4-595
CD4-597 was frac’ed and brought online in 2023. All wells in the pattern (CD4-595, CD4-597,
and CD4-594) are now on long term production & injection. The rates achieved in each well
continue to agree with their respective forecasts which suggests water injection support
between wells. Formation gas/oil ratio continues to be stable indicating waterflood support in
the pattern.
E: Discussion of Plans for the Upcoming Year.
All wells in the pattern will remain on long term injection and production. No further changes in
the operating plan are expected at this time. Following the approval of AIO 35A, ERIO6 has been
terminated and ERIO6 wells incorporated in AIO 35A.
Attachment 1: 10-412 Reservoir Pressure Report
5
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
ALASKA OIL AND GAS CONSERVATION COMMISSION
In the Matter of the Application of )
ConocoPhillips Alaska for an Enhanced )
Recovery Injection Order for the Coyote )
Interval. )
__________________________________________)
Docket No.: ERIO-22-002
PUBLIC HEARING
December 13, 2022
10:00 o'clock a.m.
BEFORE: Jessie Chmielowski, Commissioner
Greg Wilson, Commissioner
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 2
1 TABLE OF CONTENTS
2 Opening remarks by Commissioner Chmielowski 03
3 Remarks by Mr. Perfetta 06
4 Remarks by Mr. Castongia 14
5 Remarks by Ms. Alshire 17
6 Remarks by Mr. Sisemore 20
7 Remarks by Mr. Callahan 27
8 Remarks by Mr. Morrow 31
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 3
1 P R O C E E D I N G S
2 (On record - 10:00 a.m.)
3 COMMISSIONER CHMIELOWSKI: Good morning. I
4 will call this hearing to order. It is approximately
5 10:00 a.m. on Tuesday, December 13, 2022. This is a
6 public hearing on Docket number ERIO-22-002 to consider
7 ConocoPhillips Alaska's application for an enhanced
8 recovery injection order for the Coyote interval. I am
9 Commissioner Jessie Chmielowski and with me is
10 Commissioner Greg Wilson.
11 Today's hearing is being held in person and via
12 Microsoft Teams. The in person location is the Alaska
13 Oil and Gas Conservation Commission office at 333 West
14 7th Avenue, Anchorage, Alaska. For those on Teams
15 please be mindful of any background noise and make sure
16 you are muted when you are not testifying or addressing
17 the Commission.
18 If you require any special accommodation please
19 contact Samantha Carlisle. She can be reached at 907-
20 793-1223 or send her a message through the Microsoft
21 Teams chat icon and she will do her best to accommodate
22 you.
23 Computer Matrix will be recording the hearing.
24 Upon completion and preparation of the transcript
25 persons desiring a copy will be able to obtain it by
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 4
1 contacting Computer Matrix.
2 This hearing is being held in accordance with
3 Alaska Statute 44.62 and 20 AAC 25.540 of the Alaska
4 Administrative Code.
5 The notice of hearing was published on the
6 State of Alaska Online Notices website as well as the
7 AOGCC's website and was sent through the AOGCC Email
8 List Serv on September 2nd, 2022. The AOGCC also
9 published the notice in the Anchorage Daily News on
10 September 4th, 2022.
11 To date the AOGCC has not received any public
12 comment on the matter.
13 Before asking ConocoPhillips to begin their
14 presentation, Commissioner Wilson, do you have any
15 comments or questions?
16 COMMISSIONER WILSON: Yeah. Before beginning
17 today's hearing I would like to put on the public
18 record that I was previously employed at ConocoPhillips
19 and retired in May of 2021. Out of an abundance of
20 caution and in accordance with procedures outlined in
21 the Executive Branch Ethics Act prior to today's
22 hearing I requested an ethics determination from my
23 designated ethics supervisor as to whether I may make
24 decisions on ConocoPhillips matters that come before
25 the AOGCC. After receiving guidance from the Attorney
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 5
1 General's Office, my ethics supervisor has informed me
2 that I may participate in this ConocoPhillips matter
3 and there would be no violation of the Executive Ethics
4 Act to do so.
5 COMMISSIONER CHMIELOWSKI: Based on that
6 disclosure and pursuant to the Executive Branch Ethics
7 Act procedures, I do not object to Commissioner
8 Wilson's participation in this matter.
9 All right. So the Commissioners will ask
10 questions during testimony. We may also take a recess
11 to consult with Staff to determine whether additional
12 information or clarifying questions are necessary.
13 ConocoPhillips representatives, are you ready
14 to make your presentation?
15 MR. PERFETTA: We are.
16 COMMISSIONER CHMIELOWSKI: Great. For those
17 testifying please keep in mind that you must speak into
18 the microphone, that light should be bright green.
19 Also remember to reference your slides so that someone
20 reading the public record can follow along. For
21 example refer to slides by their numbers if numbered or
22 by their titles if not numbered. Please state your
23 names and job titles clearly for the record and please
24 begin.
25 MR. PERFETTA: Okay. Thank you. Slide one.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 6
1 Good morning, Commissioners. My name is Patrick
2 Perfetta, I'm the project lead and also the project
3 geologist for the Coyote project. On behalf of
4 ConocoPhillips Alaska and my colleagues, Lynn Alshire,
5 Mike Callahan, Ethan Castongia, Dustin Morrow and
6 Nathan Sisemore we're here to testify as expert
7 witnesses as it relates to the application for a pilot
8 enhanced recovery injection order associated with the
9 Coyote reservoir.
10 Before I begin I wish to be recognized as an
11 expert in geology.
12 COMMISSIONER CHMIELOWSKI: Okay. Please state
13 your educational background and work history.
14 MR. PERFETTA: I earned a bachelor of science
15 degree in geology from Indiana University of
16 Pennsylvania and a master's in geology from University
17 of Missouri at Columbia also in geology. I have
18 approximately 24 years of industry experience, all with
19 ConocoPhillips and its heritage companies. I've worked
20 project from every phase, from new ventures exploration
21 to field development. I've also held technical lead
22 roles in ConocoPhillips. I've worked in Alaska for
23 approximately 14 years.
24 COMMISSIONER CHMIELOWSKI: Thank you. I have
25 no objection.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 7
1 COMMISSIONER WILSON: No objections.
2 PATRICK PERFETTA
3 previously sworn under oath, called as a witness on
4 behalf of ConocoPhillips, stated as follows:
5 MR. PERFETTA: Okay. I'll be brief in my
6 initial comments. Thank you to the Commissioners for
7 granting us on behalf of ConocoPhillips Alaska the
8 opportunity to speak to you about the Coyote
9 application for temporary injection. We would also
10 like to recognize the AOGCC's Staff who provided
11 feedback on a preliminary version of our application
12 prior to official submittal.
13 Slide two. This is just a list of acronyms
14 that can be found in the presentation. If you have any
15 questions related to them please let us know, it's
16 purely for reference.
17 Slide three. This is a brief description of
18 the objective of the presentation as well as our
19 agenda. The objective is to supply AOGCC with the
20 information necessary to approve CPAI's Coyote enhanced
21 recovery injection order application. The agenda and
22 person or persons that will be covering that topic are
23 listed in the presentation outline.
24 I'd like to ask the Commissioners if they'd
25 like to swear folks in all at once or as we progress
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 8
1 through the presentation?
2 COMMISSIONER CHMIELOWSKI: We can do that all
3 at once.
4 MR. PERFETTA: Okay. So we can start with
5 Ethan Castongia.
6 COMMISSIONER CHMIELOWSKI: Well, we can do it
7 all at once if you all just want to I guess raise your
8 right hand.
9 MR. PERFETTA: Oh, okay.
10 (Oath administered)
11 IN UNISON: Yes.
12 COMMISSIONER CHMIELOWSKI: Great. Thank you.
13 You're all sworn in.
14 MR. PERFETTA: We'll move to slide four which
15 is just a -- will now give a brief description of the
16 project request.
17 Now we're moving to slide five. It covers a
18 brief history of the exploration activity associated
19 with testing the Coyote interval on ConocoPhillips'
20 acreage and the request for approval of the pilot
21 injection project. The slide includes a map showing
22 the location of the area of interest within the western
23 portion of the Kuparuk River unit at drill site 3S.
24 The Coyote interval was drilled, stimulated and tested
25 in the 3S24B borehole during late 2021 and early 2022.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 9
1 The map on the right-hand side of the slide shows the
2 location of the borehole highlighted by the yellow
3 star. In order to accomplish this test the 3S24A
4 Kuparuk well was plugged and abandoned and then
5 sidetracked in order to obtain a vertical borehole
6 cemented across the Coyote interval. The well was then
7 fracture stimulated and flow tested. This test proved
8 good productivity of the Coyote interval on
9 ConocoPhillips' acreage, prompting us to want to
10 proceed with a horizontal injection pilot as part of a
11 horizontal producer/injector well pair.
12 ConocoPhillips is requesting approval for an
13 injection pilot covering the area highlighted by the
14 blue rectangle on the map. This map is located
15 adjacent to drill site 3S on the western side of the
16 Kuparuk River unit and in an adjoining lease that
17 currently resides outside of the unit. The duration of
18 the proposed pilot injection period is requested to be
19 three years. This will provide enough time for us to
20 understand injectivity into the Coyote interval and if
21 pressure support between the planned producer and
22 injector is seen.
23 Planned drilling of the initial horizontal
24 producer/injector will take place in Q4 of 2022 through
25 Q1 of 2023. These are the dashed blue and green lines
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 10
1 on the map. Both the injector and producer will be
2 fracture stimulated. As part of this drilling program
3 a vertical pilot hole will be drilled for dedicated
4 data collection including hole core and advanced
5 logging. The requested three year duration of the
6 pilot injection period will allow ample time for
7 surveillance, integration of the robust data set being
8 collected and if warranted allow time to drill an
9 offset injector to the northeast of the producer in
10 order to complete a fully supported producer centered
11 pattern.
12 COMMISSIONER CHMIELOWSKI: Thank you. So the
13 producer/injector pair is planned for three years plus
14 a possible second injector?
15 MR. PERFETTA: That is correct.....
16 COMMISSIONER CHMIELOWSKI: Okay.
17 MR. PERFETTA: .....yes. Part of the initial
18 drilling will be the producer and injector.
19 COMMISSIONER CHMIELOWSKI: Thanks.
20 MR. PERFETTA: Slide six. I will now
21 transition and give a brief land overview including a
22 plat of the wells penetrating the injection zone and
23 operators within a quarter mile of the -- of the
24 operations.
25 Slide seven. The plat provided shows the
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 11
1 lateral section of two injector wells on either side of
2 our producer well. The black boundary around the well
3 denotes a one-quarter mile boundary from the wellbore.
4 The only surface owner in the area is the state of
5 Alaska and there are no other operators within the one-
6 quarter mile buffer of either wellbore. A portion of
7 the producer and a portion of the northeastern injector
8 extend into a lease not currently within the Kuparuk
9 River unit. An application to expand the unit will be
10 submitted in the coming months.
11 Slide eight. We'll now move to a geologic
12 overview of the Coyote interval and its confining
13 zones.
14 Slide nine. The Coyote interval is part of the
15 Cretaceous, Brookian, Nanushuk sequence. It represents
16 a generally west to east progradational sequence. The
17 depositional environment of the Coyote is likely delta
18 front to distal delta front deposits. It is part of a
19 elongate northeast to southwest system that parallels
20 ophelia shelf margin. Average sand porosities are in
21 the order of 23 to 24 percent with permeabilities
22 averaging 10 to 20 millidarcies.
23 In the area of the proposed injection pilot the
24 gross Coyote interval has a thickness in excess of 600
25 feet TVD. A type log for the Coyote interval from the
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 12
1 Palm 1 well is shown on the right-hand side of the
2 slide. The location of the Palm 1 well relative to the
3 area of the proposed injection pilot can be found on
4 the inset structure map. This is highlighted by the
5 yellow star on the inset map. Highlighted in yellow on
6 the log display is the gross Coyote interval with top
7 Coyote at approximately 4,270 feet measured depth and
8 base Coyote at approximately 5,115 feet measured depth.
9 From left to right the curvastein displayed are gamma
10 ray, resistivity, density neutron and compressional and
11 sheer sonic.
12 The upper confining zone of the Coyote interval
13 consists of approximately 350 feet TVD of distal
14 (indiscernible) slope CV formation claystones and
15 siltstone. This package is consistent across the 3S
16 pad area. The lower confining zone of the Coyote
17 interval consists of approximately 300 feet TVD of
18 distal (indiscernible) slope Torok mudstones. This
19 package is also consistent across the area and
20 represents the upper confining zone of the Kuparuk
21 River Torok oil pool.
22 The Coyote is predominantly a stratigraphic
23 trap with pinch out to the west and shale out to the
24 northeast and southwest. Structurally the Coyote is
25 low relief. The structure maps are shown on the lower
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 13
1 left of the slide. A subregional map and a zoomed in
2 version of the area of the proposed injection pilot are
3 included here. Structural high areas on the map are in
4 reddish colors with the blue to purplish colors being
5 structural lows. The top Coyote structure does have
6 the presence of a small, low relief four way dip
7 closure and that's interpreted to harbor a small gas
8 cap in the 3S area.
9 There is limited faulting in the top Coyote
10 structure. One small offset, laterally discontinuous
11 fault at the top of the Coyote is present to the
12 northeast of heel of the proposed Coyote horizontal
13 producer as seen on the inset structure map. Happy to
14 take any questions on this. And if not I will turn it
15 over to Ethan Castongia.
16 COMMISSIONER CHMIELOWSKI: Please proceed. And
17 state your name and affiliation or your name and title
18 for the record, please.
19 MR. CASTONGIA: Oh, yes. I am Ethan Castongia,
20 project geophysicist and that is my current position
21 with ConocoPhillips. And I wish to be recognized as an
22 expert witness in geophysics.
23 COMMISSIONER CHMIELOWSKI: Okay. Please state
24 your credentials.
25 MR. CASTONGIA: I have a bachelor's degree in
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 14
1 geology from University of Illinois Urbana-Champaign
2 and a master's degree from University of Wisconsin
3 Madison in geophysics. I have approximately eight
4 years of industry experience all with ConocoPhillips.
5 I've worked projects at most phases from exploration to
6 field development as well as a geophysical technology
7 role. I've worked Alaska project for approximately six
8 years.
9 COMMISSIONER CHMIELOWSKI: I have no
10 objections.
11 COMMISSIONER WILSON: No objections.
12 ETHAN CASTONGIA
13 previously sworn under oath, called as a witness on
14 behalf of ConocoPhillips, stated as follows:
15 MR. CASTONGIA: Okay. Thank you. We are on
16 slide 10. Shown are three schematic sections showing
17 some seismic face interpretations along with a map
18 previously shown highlighting the proposed injection
19 area with the planned injector in blue and the planned
20 producer in green and possible future injector in gray.
21 The map also has overlays of the lines of sections and
22 the mapped fault in the proposed injection area. First
23 section on the left is along the planned horizontal
24 injector part of the wellbore from A to A prime. It
25 shows subtle dip changes along the plan with a
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 15
1 thickening overall Coyote package with no features from
2 a drilling concern.
3 In the middle from B to B prime is an obliqued
4 planned wells oriented section that passes through a
5 single, small displacement mapped fault at top Coyote,
6 the heel of the planned producer is expected to cross.
7 Expected max displacement of the fault is approximately
8 30 feet and a length from tip to tip of approximately
9 2,000 feet. It cuts the top Coyote and extends 300
10 feet into the overburden where it loses throw and
11 extends into the Coyote reservoir by 200 feet where it
12 also loses throw. The fault is interpreted to be
13 sealing where it displaces reservoir against overlying
14 CB shale. It is uncertain whether the fault is sealing
15 not where it juxtaposes reservoir against reservoir.
16 This is the only expected fault that intersects the
17 Coyote interval resolved by seismic in the proposed
18 injection area.
19 The third section from C to C prime is the same
20 orientation as previous section, just translated to the
21 southeast past the extent of the fault to show the
22 fault is interpreted to be limited in extent and not
23 expected in the possible future horizontal injector nor
24 the planned horizontal injector as shown in the first
25 section from A to A prime.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 16
1 Any questions?
2 COMMISSIONER CHMIELOWSKI: Did you already say
3 what the little symbols are on the maps, they look like
4 broken up circles?
5 MR. CASTONGIA: That is the cross section
6 expected place for where the horizontals will be
7 at.....
8 COMMISSIONER CHMIELOWSKI: Okay.
9 MR. CASTONGIA: .....within depth.
10 COMMISSIONER CHMIELOWSKI: Got it.
11 MR. CASTONGIA: If there are no further
12 questions then we will move on to slide 11 and I will
13 past it over to Lynn.
14 MS. ALSHIRE: My name's Lynn Alshire, I'm a
15 staff surveillance reservoir engineer and I'd like to
16 be recognized as an expert in petroleum engineering.
17 COMMISSIONER CHMIELOWSKI: Okay. Please state
18 your credentials.
19 MS. ALSHIRE: Sure. I earned a bachelor of
20 science from South Dakota School of Mines in geological
21 engineering. I further went on to a master's degree in
22 civil engineering from the University of Alaska
23 Anchorage and a second master's in Arctic engineering
24 also from UAA. I've about 17 years of petroleum
25 engineering experience all in the state of Alaska. It
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 17
1 includes Cook Inlet offshore production, OCS lease
2 resource evaluation and North Slope production and
3 reservoir engineering.
4 COMMISSIONER CHMIELOWSKI: I have no
5 objections.
6 COMMISSIONER WILSON: No objections.
7 MS. ALSHIRE: Thank you.
8 LYNN ALSHIRE
9 previously sworn under oath, called as a witness on
10 behalf of ConocoPhillips stated as follows:
11 MS. ALSHIRE: Slide 12. And we're going to
12 look at primary injection fluids. These will be from
13 the same sources as current injection in the greater
14 Kuparuk area. Those sources are produced water from
15 current and future pools within the unit, seawater from
16 the Beaufort by the Oliktok Point seawater treatment
17 plant and an enriched gas blended from KRU lean gas and
18 indigenous or imported NGLs. Secondary fluids would be
19 those that are typically used at Kuparuk, frac fluids,
20 tracer survey fluids, fluids used to improve
21 injectivity, fluids used to improve conformance by
22 sealing intervals, freeze protect fluids and then the
23 standard oil field chemicals for corrosion and scale
24 inhibitors.
25 The sketch on the right at the top is a high
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 18
1 level view of the fluid sources and the flowlines at
2 Kuparuk. The water comparability within the formation
3 is that analysis is underway. Initial sampling and
4 modeling indicate the potential for calcium carbonate
5 and barium sulfate to form in the producers. Coyote
6 wells will be included in the GKA scale and condition
7 program which includes regular produced water sample
8 and scheduled inhibition treatments. Complete
9 compatablity testing is planned as part of the core
10 analysis program previously mentioned.
11 Are there any questions on.....
12 COMMISSIONER CHMIELOWSKI: Did you say barium
13 sulfate scale?
14 MS. ALSHIRE: Yes.
15 COMMISSIONER CHMIELOWSKI: Is that very typical
16 in Kuparuk?
17 MS. ALSHIRE: It is when there's seawater
18 flood.
19 COMMISSIONER CHMIELOWSKI: Okay.
20 MS. ALSHIRE: So we intend to use produced
21 water so the risk is lower, but where there are
22 seawater patterns we see issues with.....
23 COMMISSIONER CHMIELOWSKI: Okay.
24 MS. ALSHIRE: Okay.
25 COMMISSIONER CHMIELOWSKI: And do you have an
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 19
1 inhibition program for barium sulfate?
2 MS. ALSHIRE: Yes. It's in treating the
3 producers with squeezes.....
4 COMMISSIONER CHMIELOWSKI: Okay.
5 MS. ALSHIRE: .....to allow it -- the barium to
6 the surface rather than.....
7 COMMISSIONER CHMIELOWSKI: Right. That's a
8 trickier one. Yeah.
9 MS. ALSHIRE. Indeed. Yes.
10 COMMISSIONER CHMIELOWSKI: Yeah.
11 MS. ALSHIRE: Very much so.
12 COMMISSIONER CHMIELOWSKI: Thank you.
13 MS. ALSHIRE: Uh-huh. If there's no other
14 questions I will turn this over to Nathan I believe.
15 MR. SISEMORE: Hello. My name is Nathan
16 Sisemore, I'm the reservoir engineer for the Coyote
17 project. I request the Commission recognize me as an
18 expert in reservoir engineering.
19 COMMISSIONER CHMIELOWSKI: Okay. Please state
20 your credentials.
21 MR. SISEMORE: I received a bachelor's of
22 science in petroleum engineering from the University of
23 Houston. I have nine years of oil and gas experience
24 primarily in mature asset development. The last four
25 years have been spent with COP Alaska working in field
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 20
1 development in the greater Kuparuk area.
2 COMMISSIONER CHMIELOWSKI: I have no
3 objections.
4 COMMISSIONER WILSON: No objections.
5 NATHAN SISEMORE
6 having been previously sworn under oath, called as a
7 witness on behalf of ConocoPhillips, stated as follows:
8 MR. SISEMORE: Nathan Sisemore presenting slide
9 13 on rock strength and injection pressure. As
10 previously stated the 3S24B is a vertical penetration
11 that was perforated and stimulated in the application
12 area of interest. To the left on the log suite we have
13 a suite for the 3S24B. From left to right we have
14 gamma ray log in the first track, shaded by a shale
15 percentage. Tracks two and three are total vertical
16 depth subsea and measured depth respectively. The
17 black bars in track four represent the top and the base
18 of the Coyote formation and the black bars in track
19 five represent the Coyote perforations. Track six
20 displays open hole deresistivity (ph) and track seven
21 displays neutron porosity and density logs. Track
22 eight has compressional and sheer sonic curves and
23 track 9 shows fracture gradient curves in both PSI per
24 foot and pounds per gallon.
25 A fracture gradient of 0.62 PSI per foot was
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 21
1 captured while hydraulically fracturing 3S24B. This
2 data point which is represented as a red dot on the
3 right most log was used as a calibration point to
4 estimate the fracture gradient for the overlying CD
5 formation which is estimated to be 0.65 PSI per foot.
6 We will continue to refine this estimate early next
7 year by conducting a diagnostic fracture injection test
8 or DFIT on the CD formation in the 3S24B. We will also
9 perform geomechanical testing of the core from the
10 upper confining interval in the 3S701 hole core. We
11 plan to limit injection to 0.61 PSI per foot to stay
12 below the Coyote and CD gradients and keep injection
13 confined to the Coyote reservoir. At 4,109 feet subsea
14 this equates to roughly 165 PSI difference between our
15 target injection pressure and the overlying confining
16 fracture pressure.
17 Do you have any questions on this slide? If
18 not I'll hand it back to Pat to talk about fluid
19 quality.
20 COMMISSIONER WILSON: Did you say it was 100
21 and what PSI difference?
22 MR. SISEMORE: 165.
23 COMMISSIONER CHMIELOWSKI: And you're able to
24 maintain that pretty reliably with your injection
25 monitoring?
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 22
1 MR. SISEMORE: We are.
2 COMMISSIONER CHMIELOWSKI: Okay. Thanks.
3 MR. SISEMORE: Now we'll go to Pat to talk
4 about water quality, formation water quality.
5 MR. PERFETTA: Okay. This is Pat Perfetta, I'm
6 on slide 14. As Nathan mentioned I'll now cover
7 quality information water, the aquifer exemption
8 reference and potential for shall freshwater.
9 Okay. Moving to slide 15. During the
10 production periods of the 3S24B sustained watercut of
11 approximately 10 to 11 percent was produced in that
12 well. A sample of that water was collected and
13 analyzed at the Kuparuk lab. Results of that analysis
14 from a sample collected on January 28th, 2022 are
15 included in the table on the right-hand side of the
16 slide. Total dissolved solids of the Coyote interval
17 are in excess of 21,000 milligrams per liter. This
18 exceeds the 10,000 milligrams per liter cutoff for
19 freshwater.
20 Okay. Moving to slide 16. This slide covers
21 the aquifer exemption granted to the Kuparuk River
22 unit. In 1984 the Environmental Protection Agency as
23 per the Code of Federal Regulations, section 147.102
24 related to aquifer exemptions exempted the area beneath
25 and within one-quarter mile of the Kuparuk River unit.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 23
1 AOGCC adopted this exemption by reference to 25.440(c)
2 of the Alaska Administrative Code in 1986. For
3 reference shown on the slides are three maps. The one
4 on the right has been shown previously in the
5 presentation, the two on the left are regional and
6 zoomed in view of the current Kuparuk River unit shown
7 in the reddish color. The black lines on these maps
8 show the extent of the Kuparuk River unit in 1984 when
9 the EPA aquifer exemption was put into place.
10 Also included on these maps is the location of
11 the proposed Coyote injection pilot. As previously
12 mentioned ConocoPhillips plans to expand the Kuparuk
13 River unit to include lease 392374. This lease was
14 previously inside the Kuparuk River unit when the
15 aquifer exemption was granted. That being the case the
16 area of the planned injection pilot is currently, was
17 or is planned to be within the Kuparuk River unit
18 boundary.
19 COMMISSIONER CHMIELOWSKI: So all wells are
20 within the aquifer exemption regardless of the lease
21 status.....
22 MR. PERFETTA: That's.....
23 COMMISSIONER CHMIELOWSKI: .....currently?
24 MR. PERFETTA: .....that's correct.
25 COMMISSIONER CHMIELOWSKI: Okay.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 24
1 COMMISSIONER WILSON: The reasoning seems
2 straightforward and logical, but I was just curious did
3 you seek an opinion from the EPA on the in and out
4 lease?
5 MR. PERFETTA: No, we have not seeked an
6 opinion.
7 COMMISSIONER WILSON: Okay.
8 MR. PERFETTA: Moving on to slide 17. Aside
9 from the aquifer exemption mentioned on the previous
10 slide this covers the topic of potential existence of
11 freshwater within the 3S area. The log display on the
12 right is from the Palm 1 well. The interval shown is
13 where the well intersects the base of permafrost in the
14 3S area. The Ugnu sands lie near the base of the
15 permafrost in this area. The log display has gamma ray
16 on the left and resistivity on the right. For
17 background purposes resistivity in clean sands greater
18 than or equal to approximately 100 ohmmeters, are a
19 (indiscernible) approximation for the base of
20 permafrost. As can be seen on the log display there's
21 a transitional zone in the base of the Ugnu sand
22 section where resistivity is approached 100 ohmmeters
23 in the depth interval from approximately 1,610 feet
24 measured depth to 1,905 feet measured depth. There are
25 two potential interpretations for this interval, one
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 25
1 it's a transitional package with a mixture of ice and
2 water or two, it's a zone of porous freshwater bearing
3 sand. If the zone is freshwater bearing it would have
4 a calculated salinity of approximately 2,000 parts per
5 million. It should be noted that this zone is in
6 excess of 2,000 feet TVD above the Coyote interval and
7 is cemented behind surface casing in all wells in the
8 area. The location of the surface casing set depth in
9 the Palm 1 is displayed in the log just below 2,500
10 feet subsea TVD.
11 COMMISSIONER CHMIELOWSKI: So to restate for
12 the record all potential sources of fresh groundwater
13 will be behind case cement -- case -- cemented casing?
14 MR. PERFETTA: Yes, that is correct.
15 COMMISSIONER CHMIELOWSKI: Thank you.
16 MR. PERFETTA: Slide 18. I'll turn it over to
17 Nathan Sisemore again.
18 MR. SISEMORE: This is slide 19 on incremental
19 hydrocarbon recovery. To the upper left we have a
20 contour map of the net pay within the upper 200 feet of
21 the Coyote reservoir. The pattern of interest is
22 highlighted in green with a producer centered pattern
23 surrounded by two planned injectors. Reservoir
24 modeling estimates the stock tank oil in place for this
25 region to be between 30.7 and 32.2 million stock tank
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 26
1 barrels.
2 The upper right-hand plat represents a
3 simulation based cumulative oil production with three
4 recovery types covered in this application. Simulation
5 estimates 5 to 10 percent potential recovery for
6 primary depletion or gas expansion drive, 20 to 30
7 percent potential recovery for waterflood and an
8 addition 1 to 5 percent for enriched gas injection
9 recovery.
10 COMMISSIONER CHMIELOWSKI: Do you plan to start
11 WAG injection at the beginning or are you going to do
12 some water injection for the well first?
13 MR. SISEMORE: We'll be doing water injection
14 for the well first.
15 COMMISSIONER CHMIELOWSKI: Okay.
16 MR. SISEMORE: Any other questions on this
17 slide?
18 COMMISSIONER WILSON: None.
19 MR. SISEMORE: I'll hand it over to Mike
20 Callahan to talk about the drilling.
21 MR. CALLAHAN: Good morning. I'm Mike
22 Callahan, I'm the drilling engineer for the Coyote
23 project with ConocoPhillips. I'd like to be recognized
24 by the Commission as an expert in drilling engineering.
25 COMMISSIONER CHMIELOWSKI: Okay. Please state
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 27
1 your credentials.
2 MR. CALLAHAN: I have a bachelor of science
3 degree from the University of Texas in petroleum
4 engineering. I've been in the industry for
5 approximately 12 years all with ConocoPhillips, seven
6 of which have come in Alaska working projects all the
7 way from exploration through appraisal and development.
8 I also spent five years between the lower 48 working
9 primarily in the Permian and a year in Norway.
10 COMMISSIONER CHMIELOWSKI: I've no objections.
11 COMMISSIONER WILSON: No objections.
12 COMMISSIONER CHMIELOWSKI: Could you please
13 state your last name again?
14 MR. CALLAHAN: Callahan.
15 COMMISSIONER CHMIELOWSKI: Callahan. Great.
16 Thanks.
17 MIKE CALLAHAN
18 previously sworn under oath, called as a witness on
19 behalf of ConocoPhillips, stated as follows:
20 MR. CALLAHAN: All right. I'll be talking here
21 slide 21. This shows a schematic of our planned
22 injection well. Starting from the top we'll be
23 drilling a 13 and a half inch surface hole and running
24 10 and three-quarter inch surface casing that will be
25 set below the base of the West Sak formation. And that
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 28
1 casing will be cemented to surface. We will then drill
2 out of that with a nine and seven-eights inch
3 intermediate hole and run seven and five-eights
4 intermediate casing. That casing will be set within
5 the Coyote reservoir and cemented to a minimum of 500
6 feet MD or 250 feet TVD above the top of that Coyote
7 interval, whichever is greater. We then plan to drill
8 a six and a half inch lateral for about 8,000 feet
9 within the Coyote reservoir and run a four and a half
10 inch liner completed with swell packers and frac
11 sleeves. That liner top will be set within 20 feet MD
12 of the intermediate casing shoe.
13 Are there any questions on our proposed well
14 design?
15 COMMISSIONER WILSON: I have a question. This
16 may be more for Pat though. Just could you comment on
17 the presence or absence of any Tuluvak sands and the
18 present -- the fluids associated with it?
19 MR. CALLAHAN: Within the Coyote overburden
20 between the surface casing set point and the top of the
21 Coyote there really are -- there's one thin Campanian
22 sand. Other than that it's predominantly a silty
23 section. And the Campanian sand that's present isn't
24 known to have hydrocarbons in this area.
25 COMMISSIONER WILSON: Okay. Thank you.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 29
1 MR. CALLAHAN: Uh-huh. Okay. If there's no
2 further questions we'll move on to the next slide,
3 slide 22. So this slide is just referencing the wells
4 that we have within one-quarter mile of the proposed
5 injection area. As you can see on the table on the
6 left we have three wells that fall within this area.
7 Shown on the map on the right there I'll start with the
8 3S03. So that is an active Kuparuk producer. You can
9 see there where the Coyote penetration marked with the
10 top and bottom by the red and blue stars there to the
11 northeast of our planned pattern. That well is
12 currently on active production with no known mechanical
13 issues. The Coyote interval is uncemented in that well
14 and our plan is to monitor that annulus during fracture
15 operations.
16 Moving on to the 3S21. That is a Kuparuk
17 injector. This slide is actually a couple weeks old.
18 The abandonment on that well was recently completed and
19 the Coyote interval was cemented as part of that
20 abandonment.
21 And then finally the 3S24B is the Coyote
22 producer that we have referenced previously in the
23 presentation. That's an active producer currently. As
24 part of that sidetrack we did cement across the Coyote
25 and within the intermediate casing so the Coyote is
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 30
1 cemented there as well. The plan is to use that well
2 for monitoring for the near term and it will be P&A'd
3 shortly after beginning injection on the proposed well
4 pair.
5 COMMISSIONER CHMIELOWSKI: Which well are you
6 using for monitoring going forward after you plug and
7 abandon this one, are you drilling a new well for that
8 purpose?
9 MR. CALLAHAN: There will be no new well.....
10 COMMISSIONER CHMIELOWSKI: Okay.
11 MR. CALLAHAN: .....drilled for monitoring. We
12 do have ongoing annulus monitoring across the 3S pad.
13 COMMISSIONER CHMIELOWSKI: Okay.
14 MR. CALLAHAN: So we do have a way to monitor
15 pressures on any offset wells.
16 COMMISSIONER CHMIELOWSKI: Okay.
17 MR. CALLAHAN: And if there's no more questions
18 I think I'll hand off to my colleague, Dustin Morrow.
19 MR. MORROW: Good morning. My name is Dustin
20 Morrow, I'm the completion engineer for the Coyote
21 project. I'd like to be recognized as an expert
22 witness in completions.
23 COMMISSIONER CHMIELOWSKI: Okay. I think you
24 know the routine.
25 MR. MORROW: I'll try not to forget it. So I
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 31
1 went to New Mexico State University, I received and
2 bachelor's and master's in mechanical engineering.
3 From there I went -- worked for El Paso Natural Gas for
4 three years as a pipeline engineer. I've been with
5 ConocoPhillips for 14 years, five as production
6 engineer and intervention engineer and then the
7 remaining nine in completions from unconventional to
8 conventional assets. I've been in Alaska working
9 projects for a total of three years.
10 COMMISSIONER CHMIELOWSKI: I've no objections.
11 COMMISSIONER WILSON: No objections.
12 DUSTIN MORROW
13 previously sworn under oath, called as a witness on
14 behalf of ConocoPhillips, stated as follows:
15 MR. MORROW: Thank you. So I'm going to talk a
16 little bit about our planned fracture stimulation work
17 for this injector. A lot of the data here is from the
18 3S24B. On the left is a model built from logging on
19 the 3S24B. From there -- from that we built a geo
20 model and modeled our frac job. So what I'm showing on
21 the left is our depths and those pink hash marks those
22 are some high Young's modulus layers that we found in
23 this log, but we do not expect them to be continuous
24 and so therefore they were left off the geo model. We
25 didn't want it to show up as a barrier which they -- we
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 32
1 believe they are not.
2 So we fracture stimulated the 3S24B with
3 300,000 pounds of proppant. On the right is a geo
4 model and a history match with that job. And we found
5 a half link (ph) at about 270 feet, high pros (ph) of
6 160 feet. Based on these modeling and history matching
7 we've lowered our lateral placement as shown on the
8 left about 100 feet deeper and we placed the
9 perforation as 24B. And we're also -- I'm sorry, a
10 hundred feet below the top of Coyote. So our planned
11 job for this well is 300 pounds of 16/20 proppant in
12 place of the crosslink (ph) gel system. And our frac
13 sleeves will be at a spacing of 500 feet.
14 COMMISSIONER CHMIELOWSKI: And so you're
15 planning what, somewhere around 15 stage fracs,
16 something like that?
17 MR. MORROW: We're going to have 15 sleeves and
18 a tow stage so there'll be a total of 16 stages, total
19 proppant of 4.8 million pounds.
20 COMMISSIONER CHMIELOWSKI: And how many stages
21 did you have in 24B, was it just a single?
22 MR. MORROW: A single vertical.
23 COMMISSIONER CHMIELOWSKI: Yeah. Okay.
24 MR. MORROW: Single vertical.
25 COMMISSIONER CHMIELOWSKI: Yeah. And you're
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 33
1 going to frac the injector too?
2 MR. MORROW: Correct.
3 COMMISSIONER CHMIELOWSKI: Right. Okay. And
4 similar design for that one, frac design?
5 MR. MORROW: The producer and injector will be
6 the same design.
7 COMMISSIONER CHMIELOWSKI: Okay.
8 MR. MORROW: Correct. Yeah, so the 3S704 will
9 be cemented. The injector will have swell packer. Our
10 planned producer is -- will be cemented and that will
11 be a test to determine if that's needed due to
12 potential proppant flowback. So we'll be comparing the
13 two wells.
14 COMMISSIONER CHMIELOWSKI: All right.
15 MR. MORROW: Any questions?
16 COMMISSIONER WILSON: I'm good.
17 COMMISSIONER CHMIELOWSKI: You mentioned you'll
18 start drilling relatively soon and I realize this
19 hearing has been postponed several times. So do you
20 have like an update on when you're going to get the rig
21 out there?
22 MR. MORROW: Yeah, so the rig should be moving
23 onto the 3S701 this weekend.....
24 COMMISSIONER CHMIELOWSKI: This weekend.
25 MR. MORROW: .....or later in the week. Yeah.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 34
1 COMMISSIONER CHMIELOWSKI: Great. So I see you
2 have one more slide. Is there a summary slide then.
3 Okay. Move on to that.
4 MR. MORROW: Yeah, that's correct.
5 COMMISSIONER CHMIELOWSKI: Okay.
6 MR. PERFETTA: Okay. Slide 24 we're
7 transitioning just to the final thoughts and summary
8 and then moving to slide 25. And this is Patrick
9 Perfetta again.
10 So in closing ConocoPhillips Alaska requests
11 approval for a pilot enhanced recovery injection order
12 for a period of three years for the Coyote interval.
13 The area is located at 3S pad in the western portion of
14 the Kuparuk River unit and the adjacent lease as
15 previously stated. The request covers fluids outlined
16 in this presentation and that are contained within the
17 application. This time period will give ample time to
18 understand injectivity into the Coyote, collect and
19 analyze additional data and potentially drill a follow-
20 up injector to complete the previously mentioned fully
21 supported producer centered pattern.
22 And we'd like to thank the Commissioners and
23 AOGCC Staff for their time and effort concerning this
24 matter and we're happy to take any additional questions
25 that you might have at this time.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 35
1 COMMISSIONER CHMIELOWSKI: Great. That was an
2 excellent presentation. Thank you very much.
3 MR. PERFETTA: Thank you.
4 COMMISSIONER CHMIELOWSKI: Do you have any
5 questions or should we take a brief recess?
6 COMMISSIONER WILSON: Let's take a brief
7 recess. Yeah, I'll second that that was an excellent
8 presentation.
9 COMMISSIONER CHMIELOWSKI: All right. Let's
10 see. The time is 11:11 so we will -- let's plan to
11 come back at 11:25 and we'll wrap it up.
12 MR. PERFETTA: Great. Thank you.
13 COMMISSIONER CHMIELOWSKI: All right. See you
14 at 11:25.
15 (Off record)
16 (On record)
17 COMMISSIONER CHMIELOWSKI: All right. Thanks
18 for bearing with us. We're back on the record, the
19 time is 11:29 a.m.
20 First of all could you talk a little bit about
21 what injection rates you plan, water and MI? And then
22 please restate your name as you talk.
23 Thank you.
24 MR. SISEMORE: Thank you. My name is Nathan
25 Sisemore. We're looking to inject up to 15,000 barrels
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 36
1 a day. We left ourselves kind of a wide berth since we
2 don't have any horizontal penetrations in the ground we
3 are trying to keep a voidage (ph) replacement of one
4 and so we gave ourselves enough room to cover that
5 depending on what the producer comes on at.
6 COMMISSIONER CHMIELOWSKI: Okay. And you
7 talked about, you know, a pressure differential of
8 about 165 PSI between the injection pressure downhole
9 and the frac pressure for the overburden, right. So
10 how do you ensure that you stay in the -- you know,
11 within that range, what if you had a couple hundred
12 pound injection pressure swing, like what is your
13 system for keeping this in line, it's kind of a tight
14 margin?
15 MR. SISEMORE: Sure. Sure. So we have
16 instrumentation out in the field, automatic chokes that
17 are set to a do not exceed pressure and so they will
18 activate when we start getting close to that 0.61 PSI
19 per foot gradient as well as monitoring with our board
20 operators. And so if we are consistently saying that
21 we're hitting that amount and we're having to choke
22 back, they will see that on the board and if we have an
23 event that starts to go above that we've left ourselves
24 about 165 PSI difference to react and the board would
25 send an operator out to the field.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 37
1 COMMISSIONER CHMIELOWSKI: And so this
2 automatic choke is just on this one injector, right, or
3 do you have them across all injectors?
4 MR. SISEMORE: We have them across injectors
5 and we do -- this is -- we do have additional wells,
6 not in Coyote, but across the field that have these
7 DNE, do not exceed limitation. So this is somewhat of
8 a common practice for us.
9 COMMISSIONER CHMIELOWSKI: Okay. And you've
10 been able -- Conoco's been able to maintain those
11 pressure limits without going over to -- at all or.....
12 MR. SISEMORE: I don't have.....
13 COMMISSIONER CHMIELOWSKI: Okay.
14 MR. SISEMORE: .....that information.
15 COMMISSIONER CHMIELOWSKI: Right.
16 MS. ALSHIRE: This is Lynn Alshire. We'll have
17 a series of alarms set off for -- and set up depending
18 on the sand face pressures that we desire and at that
19 drop dead the surface safety valve will close and shut
20 off injection.
21 COMMISSIONER CHMIELOWSKI: Okay. And the drop
22 dead is what, the 165 difference?
23 MS. ALSHIRE: We'll probably set that a little
24 bit more than that to -- the hard part is we don't know
25 -- understand injectivity yet.....
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 38
1 COMMISSIONER CHMIELOWSKI: Uh-huh.
2 MS. ALSHIRE: .....so it won't -- we'll -- once
3 we understand injectivity we'll decide how close we
4 want to ride that 165 PSI.
5 COMMISSIONER CHMIELOWSKI: Okay. So the
6 surface safety will close and is that -- that will
7 happen automatically?
8 MS. ALSHIRE: Yes.
9 COMMISSIONER CHMIELOWSKI: Yeah. Okay.
10 MS. ALSHIRE: But we have two alarms ahead of
11 that that will.....
12 COMMISSIONER CHMIELOWSKI: Right.
13 MS. ALSHIRE:.....allow the operators and the
14 PEs to react.
15 COMMISSIONER CHMIELOWSKI: Great. Thank you.
16 MS. ALSHIRE: You're welcome.
17 COMMISSIONER CHMIELOWSKI: And I want to talk a
18 little bit about the offset well 3S03. So it has an
19 annulus that's not cemented across the Coyote and you
20 mentioned only monitoring that well during the frac.
21 Why is Conoco not cementing that well like other wells
22 on the pad, hasn't there been a campaign on 3S pad to
23 perf and wash and cement across the Coyote?
24 MS. ALSHIRE: This is Lynn Alshire again. The
25 perf washes have been a part of the P&A process.....
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 39
1 COMMISSIONER CHMIELOWSKI: Uh-huh.
2 MS. ALSHIRE: .....so it requires tubing to
3 become pulled and.....
4 COMMISSIONER CHMIELOWSKI: Okay.
5 MS. ALSHIRE: .....laid down. So for 3S03 we
6 will be monitoring the OA, the OAs are always monitored
7 so it's not just during the frac. It'll be different
8 information we're looking for during the frac, but the
9 OAs are already monitored. And if -- eventually we
10 will P&A 303 and it will be perf washed and cemented to
11 surface.
12 COMMISSIONER CHMIELOWSKI: So cemented after
13 the pilot that you're talking about or you mean just
14 eventually at end of field life?
15 MS. ALSHIRE: End of well life actually.
16 COMMISSIONER CHMIELOWSKI: End of well life,
17 yeah.
18 MS. ALSHIRE: So we're recovering slots as the
19 development for Moraine and Coyote progress we will
20 recover slots from the Kuparuk wells.
21 COMMISSIONER CHMIELOWSKI: Okay. So you're
22 monitoring the annulus and can you talk a little bit
23 about the monitoring program that how often is the data
24 received and reviewed?
25 MS. ALSHIRE: Daily. Some -- actually I think
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 40
1 every shift, they go out and they read the gauges and
2 then it's also in the scata screening, we can -- the
3 PEs can see it also.
4 COMMISSIONER CHMIELOWSKI: Okay. So how will
5 Conoco ensure that fluids are not escaping out of zone,
6 you know, going into this Coyote interval and 3S03?
7 MS. ALSHIRE: So for 3S03 as soon as we see any
8 abnormal injection or any abnormal pressure we will
9 shut the well in immediately.
10 COMMISSIONER CHMIELOWSKI: Okay. Any other
11 questions, Commissioner Wilson?
12 COMMISSIONER WILSON: No, none from me.
13 COMMISSIONER CHMIELOWSKI: Just checking with
14 Staff. Any reason to convene again?
15 (No comments)
16 COMMISSIONER CHMIELOWSKI: Seeing no. Okay.
17 Great. We did receive a question through Teams and we
18 decided it wasn't germane to the hearing so we're not
19 going to ask that. Let's see. I guess I will ask --
20 offer to any member of the public the opportunity to
21 testify or provide comments. I'm going to give kind of
22 a lengthy pause here to give people a chance to comment
23 Samantha or speak up on the Teams or communicate via
24 chat and let us know if there's anyone who wishes to
25 testify. I'm going to wait a full minute on that.
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 41
1 (No comments)
2 COMMISSIONER CHMIELOWSKI: Okay. We're at a
3 minute just because it does take folks a while to get
4 through with the new technology.
5 Samantha, have you heard from anyone who wishes
6 to testify?
7 MS. CARLISLE: I have not.
8 COMMISSIONER CHMIELOWSKI: Okay. Any other
9 comments, Commissioner Wilson?
10 COMMISSIONER WILSON: No, none from me.
11 COMMISSIONER CHMIELOWSKI: Okay. So hearing no
12 other business the time is 11:36 a.m. and this hearing
13 is now adjourned.
14 (Hearing adjourned - 11:36 a.m.)
15 (END OF PROCEEDINGS)
16
17
18
19
20
21
22
23
24
25
AOGCC 12/13/2022 ITMO: CONOCOPHILLIPS AK
Docket No. ERIO-22-002
329 F Street, Ste. 222., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
Computer Matrix, LLC Phone: 907-227-5312
Page 42
1 TRANSCRIBER'S CERTIFICATE
2 I, Salena A. Hile, hereby certify that the
3 foregoing pages numbered 02 through 42 are a true,
4 accurate, and complete transcript of proceedings in
5 Docket No.: ERIO-22-002, transcribed under my direction
6 from a copy of an electronic sound recording to the
7 best of our knowledge and ability.
8
9
_______________ _______________________________
10 DATE SALENA A. HILE, (Transcriber)
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Coyote
Pilot enhanced oil recovery project
AOGCC Hearing
December 13, 2022
Acronyms
2
•AAC: Alaska Administrative Code
•ADL: Alaska Division of Lands
•AOGCC: Alaska Oil and Gas Conservation Commission
•CPAI: ConocoPhillips Alaska, Inc.
•CFR: Code of Federal Regulations
•CPF: Central Processing Facility
•DFIT: Diagnostic Fracture Injection Test
•EPA: Environmental Protection Agency
•EWAG: Enriched Water Alternating Gas
•KRU: Kuparuk River Unit
•md: Millidarcy
•mg/l: Milligrams per Liter
•MI: Miscible Injectant
•MMSTB: Million Stock Tank Barrels
•P&A: Plug and Abandon
•PPG: Pounds Per Gallon
•PSI: Pounds Per Square Inch
•PW: Produced Water
•STOOIP: Stock Tank Original Oil In Place
•SW: Sea Water
•TVD: True Vertical Depth
•TVDSS/SSTVD: True Vertical Depth Subsea
•YM: Young’s Modulus
Agenda
Objective: To supply the AOGCC with the information necessary to approve CPAI’s
Coyote Enhanced Recovery Injection Order application.
Presentation Outline:
•Project Introduction (Patrick Perfetta)
•Land Overview (Patrick Perfetta)
•Geoscience Overview (Patrick Perfetta & Ethan Castongia)
•Injection Analysis (Lynn Aleshire & Nathan Sisemore)
•Formation Water Quality (Patrick Perfetta)
•Reservoir Engineering (Nathan Sisemore)
•Drilling & Wells Overview (Mike Callahan & Dustin Morrow)
•Project Summary (Patrick Perfetta)
3
Project Introduction
-Description of proposed operation
4
Project Location & Overview
•History
•3S-24B Coyote Interval exploration test (2021-2022)
•P&A and side-track of 3S-24A Kuparuk producer
•Fracture stimulated -> flow test -> long-term production
•Proved productivity of interval on CPAI acreage
•Request for approval for pilot injection
•Location: Drillsite 3S, KRU & adjacent lease
•Interval of interest: Coyote Reservoir
•Duration: Three years
•Request allows time for planned data collection program,
observation of injection/withdrawal, and integration of results
into Pool Rules & Area Injection Order proposal
•Planned activities
•Initial drilling: late Q4 2022 -> Q12023
•Horizontal multi-stage fracture stimulated producer/injector
•Pilot-hole for dedicated data collection
•Overburden data collection in existing 3S-24B prior to P&A
•Studies
5
Planned
horizontal
injector
Planned
horizontal
producer
Possible future
horizontal injector
Kuparuk River Unit
Location of Proposed
Coyote Injection Pilot
1 Mile
3S Pad Area Map with Well Spider
Land Overview
-Plat of wells penetrating injection zone
-Operators and surface owners within ¼ mile of injection operations
6
Land Plat with Planned Wells
7
Geoscience Overview
-Description and depth interval
-Description of the formation
8
Coyote Interval Geologic Overview
•Stratigraphy
•Nanushuk, west to east progradational topset reservoir
•Elongate northeast to southwest depositional system, parallel to paleo-shelf margin
•Average sand porosity: 23-24%, permeability: 10-20 md
•Confining intervals
•Upper: Distal toe of slope Seabee clay/siltstones, ~350’ thick
•Lower: Distal toe of slope Torok mudstones, ~300’ thick
•Structure/Trap
•Predominantly stratigraphic trap with small low relief dip closures
•Limited faulting -> Small northwest-southeast trending fault to northeast of planned horizontal producer
9
Top Coyote
4,270’ MD
Base Coyote
5,115’ MD NanushukTorokSeabeeKuparuk River:
Torok Oil Pool
Lower
Confining Zone
Upper
Confining Zone
Coyote Gross
Reservoir Interval
Palm 1
Top Coyote Depth Structure
Area of detail
Contour interval 50’*Top Coyote penetration Formation
Schematic Seismic Lines
10
Injection Analysis
-Injection fluid analysis and injection rates
-Estimated average and maximum injection pressures
11
Injection Fluid Analysis
Primary Injection Fluids
•Produced water and gas from all present and yet-to-be defined oil pools within the KRU
•Beaufort seawater sourced from the Kuparuk seawater treatment plant
•Enriched hydrocarbon gas (MI): Blend of KRU lean gas with indigenous and/or imported natural gas liquids
Secondary Injection Fluids
•Fluids used during hydraulic fracture stimulation
•Tracer survey fluids to monitor reservoir performance
•Fluids used to improve near wellbore injectivity (acids, solvents, etc.)
•Fluids used to seal wellbore intervals which negatively impact recovery (cement, resin, etc.)
•Fluids associated with freeze protection (diesel, crude, glycol, methanol, etc.)
•Standard oilfield chemicals (corrosion inhibitor, scale inhibitor, etc.)
12
Water Compatibility
•Modeling indicates potential for CaCO3 and BaSO4
formation in the wellbore
•Coyote wells will be included in the GKA scale
inhibition program which includes regular PW
sampling and scheduled inhibition treatments
•Compatibility testing is planned as part of core
analysis program.
Coyote Injection Pressure
Rock Strength
•3S-24B log display
•Right-most track contains calibrated minimum horizontal stress (closure pressure)
curves in mudweight (PPG), and gradient (psi/ft)
•Coyote fracture gradient (0.62 psi/ft) based on 3S-24B fracture stimulation
data
•Overlying Seabee fracture gradient (0.65 psi/ft) based on rock strength
curves calibrated to 3S-24B Coyote fracture stimulation data
•Further planned data collection for continued rock strength calibration
•Diagnostic fracture injection test (DFIT) in upper confining interval (Q2 2023)
•Geomechanical testing of whole core (Q1 2023)
Injection
•Target injection pressure will be based on 0.61 psi/ft
•Will not exceed fracture gradient of the Coyote Sands (0.62 psi/ft) and overlying
confining shales (0.65 psi/ft)
13
3S-24B Closure pressure:0.62 psi/ft (2506 psi @ 4109 SSTVD)
Depth:4,165 TVD (4,109 SSTVD)
Formation Water Quality
-Quality of formation water
-Aquifer exemption reference
-Potential for freshwater
14
Coyote Interval Produced Water
•Sustained ~10-11% water cut produced
from 3S-24B long-term production
•Total dissolved solids of produced water
are in excess of 21,000 mg/l
•Exceeds 10,00 mg/l cut-off for freshwater
15
Analysis Name Value Unit
Aluminum - mg/l
Boron 26.2 mg/l
Barium 1.3 mg/l
Bicarbonate 2,409.8 mg/l
Calcium 99.4 mg/l
Carbonate 13.0 mg/l
Chloride 10,081.1 mg/l
Conductivity 17,850.0 uS/cm
Iron 0.1 mg/l
Potassium 48.2 mg/l
Lithium 2.2 mg/l
Magnesium 91.7 mg/l
Manganese 0.2 mg/l
Sodium 8,246.5 mg/l
Phosphorus 0.3 mg/l
PH 8.3
Silicon 6.1 mg/l
Sulfate 151.5 mg/l
Specific Gravity @ 60 degrees F 1.0
Strontium 7.5 mg/l
Zinc - mg/l
3S-24B Produced Water Sample: Coyote Formation
Sample date: 1/28/22, analyses performed at Kupaurk Lab
Aquifer Exemption Reference
•EPA aquifer exemption
•Area directly beneath, and within ¼ mile of the
Kuparuk River Unit as per 40 C.F.R. 147.102(b)(3)
•Enacted in 1984
•AOGCC adopted the above exemption in 1986 by
reference 20 AAC 25.440(c)
16
Planned
horizontal
injector
Planned
horizontal
producer
Possible future
horizontal injector
Kuparuk River Unit
Location of Proposed
Coyote Injection Pilot
1 Mile
3S Pad Area Map with Well Spider
Current KRU
Boundary
KRU Boundary 1984
Current KRU Boundary
KRU Boundary 1984
Potential Freshwater Interval
•Resistivity in clean sands of >= 100 ohmm is a good approximation of permafrost
•Ugnu sand interval in area occurs near base of permafrost section
•Zone from 1,610 –1,905’ MD in Lower Ugnu has resistivities approaching 100 ohmm
•Two options for this zone
•Likely transitional package with mix of ice and water
•If zone is not ice bearing, it would have a calculated salinity of ~2,000 ppm
•Zone is cemented behind surface casing on all wells in the area
•In excess of 2,000’ TVD above interval
17
Palm 1 Log Display
>= 100 ohmm
Reservoir Engineering
-In-place
-Incremental hydrocarbon recovery
18
Incremental Hydrocarbon Recovery
•STOOIP for injection area (upper 200’) –30.7-32.2 MMSTB
•Recovery factors (simulation-based estimates)
•Primary depletion: 5-10%
•Waterflood recovery: 20-30%
•Enriched gas (EWAG) recovery: 1-5% incremental
19
0
1,000,000
2,000,000
3,000,000
4,000,000
5,000,000
6,000,000
7,000,000
8,000,000
9,000,000
Primary Depletion
Waterflood
Enriched Gas Oil Production (BO)Time
Coyote Net Pay
1 Mile
Volumetric
calculation area
Cumulative Oil Production
(by recovery type)
Drilling & Completions
-Mechanical integrity of injection wells
-Logs of the injection wells
-Mechanical condition of wells within ¼ mile of proposed area
-Fracture modeling
20
Injection Well Schematic
21
Mechanical condition of wells within ¼ mile of proposed area
22
Well Well
Type
Status Mech
Integrity
Notes
3S-03 Kuparuk
Producer
Active No issues
-Coyote currently uncemented
-Well to be pressure monitored during
Coyote fracture stimulation.
3S-21 Kuparuk
Injector
To be
Abandoned
No issues
-Coyote currently uncemented
-Coyote will be isolated with cement prior
to fracture stimulation.
3S-24B Coyote
Producer
Active No Issues
-Estimated top of cement >250 ft TVD
above top Coyote
-3S-24B Sidetrack drilled 2021 as Coyote
exploration well.
-Well to be P&A’d shortly after beginning
injection in offset Coyote wells.
*Top Coyote penetration point
*Base Coyote penetrations point
Well Location Map
P&A’d well
Fracture Stimulation Modeling
23
160 ft
270 ft
Prop Con
0 –5 lb/ft2
0
1
2
3
4
5
300k lbm
16/20 ceramic
Top Coyote
4093 ft TVD
•High density / YM layers manually removed (as shown to the left )
•Planning lateral placement 100 ft below the top of Coyote, landing depth based
on the 3S-24B post job stimulation modeling, and history matching
̶Moved lateral deeper than originally planned after post job analysis on 3S-24B
•300k lbm of proppant planned with crosslinked gel to provide high fracture
conductivity over the 500’ sleeve spacing
Gas Cap
Geo-model based on 3S-24B
Lateral
Placement
Summary
-General project summary, and final thoughts
24
Summary
•Request for approval for a pilot enhanced
recovery injection order
•Duration: Three years
•Interval of interest: Coyote
•Location: Western KRU & adjacent lease
•Fluids: As noted in application and this presentation
25
Planned
horizontal
injector
Planned
horizontal
producer
Possible future
horizontal injector
Kuparuk River Unit
Location of Proposed
Coyote Injection Pilot
1 Mile
3S Pad Area Map with Well Spider
4
Revised Notice Rescheduling Public Hearing
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
RE: Docket Number: ERIO-22-002
By application received August 11, 2022, ConocoPhillips Alaska, Inc. (CPAI) requested the
Alaska Oil and Gas Conservation Commission (AOGCC) issue an order approving a pilot
enhanced oil recovery (EOR) project for the Coyote Interval in the Kuparuk River Unit (KRU).
Enhanced recovery regulations (20 AAC 25.402) are in place to ensure that EOR injection projects
are conducted in a manner that will lead to increased ultimate recovery, prevent the injected fluids
from escaping the injection interval, and protect sources of freshwater. Operators must apply for,
and be granted, an order that authorizes EOR injection before they can commence injection
operations. Part of the application process requires the operator to notify, and provide a copy of
the application to, all operators and surface owners within a ¼-mile radius of the proposed injection
well(s). For situations where the viability of a specific EOR process has not been demonstrated as
being effective in a certain application, such as this proposal to conduct water injection for EOR
purposes in the Coyote Interval, 20 AAC 25.450(b) allows the AOGCC to issue an injection order
approving a pilot EOR injection project to allow for the gathering of information necessary to
show whether or not it is viable before a full field project is pursued. Pilot project EOR orders are
usually time limited and often require different data collection and reporting requirements than a
conventional EOR injection order since the purpose of a pilot EOR injection project is to
demonstrate feasibility of a process before pursuing it on a fieldwide basis.
This notice does not contain all the information filed by CPAI.You may obtain more information
about this filing by contacting the AOGCC’s Special Assistant, Samantha Carlisle, at (907) 793-
1223 or Samantha.Carlisle@alaska.gov.
The AOGCC is rescheduling the public hearing on this matter from November 8, 2022 to
November 29, 2022 at 10:00 a.m.The hearing, which may be changed to full virtual if necessary,
will be held in the AOGCC hearing room located at 333 West 7th Avenue, Anchorage, AK 99501. The
audio call-in information is (907) 202-7104,conference ID no. 592 156 542#. Anyone who wishes
to participate remotely using MS Teams video conference should contact Samantha Carlisle at
least two business days before the scheduled public hearing to request an invitation for the MS
Teams.
In addition, written comments regarding this application may be submitted to the AOGCC, at 333
west 7th Avenue, Anchorage, AK 99501 or samantha.carlisle@alaska.gov. Comments must be
received no later than the conclusion of the November 29, 2022 hearing.
Individuals or groups of people with disabilities who require special accommodations to comment
or attend the hearing should contact Samantha Carlisle at (907) 793-1223, no later than November
21, 2022.
Jessie L. Chmielowski
Commissioner
Jessie L.
Chmielowski
Digitally signed by
Jessie L. Chmielowski
Date: 2022.10.26
16:23:37 -08'00'
From:Carlisle, Samantha J (OGC)
To:AOGCC_Public_Notices
Subject:[AOGCC_Public_Notices] Rescheduled ERIO-22-002 Public Hearing Notice (CPAI)
Date:Thursday, October 27, 2022 8:07:58 AM
Attachments:Revised ERIO-22-002 Public Hearing Notice.pdf
By application received August 11, 2022, ConocoPhillips Alaska, Inc. (CPAI) requested the
Alaska Oil and Gas Conservation Commission (AOGCC) issue an order approving a pilot
enhanced oil recovery (EOR) project for the Coyote Interval in the Kuparuk River Unit
(KRU).
Samantha Carlisle
AOGCC Special Assistant
Alaska Oil and Gas Conservation Commission
333 West 7th Avenue
Anchorage, AK 99501
(907) 793-1223
__________________________________
List Name: AOGCC_Public_Notices@list.state.ak.us
You subscribed as: samantha.carlisle@alaska.gov
Unsubscribe at:
https://list.state.ak.us/mailman/options/aogcc_public_notices/samantha.carlisle%40alaska.gov
Bernie Karl
K&K Recycling Inc.
P.O. Box 58055
Fairbanks, AK 99711
mailed 10/27/22
Adam Garrigus being first duly sworn on oath
deposes and says that she is a representative of
the Anchorage Daily News, a daily newspaper.
That said newspaper has been approved by the
Third Judicial Court, Anchorage, Alaska, and
it now and has been published in the English
language continually as a daily newspaper in
Anchorage, Alaska, and it is now and during all
said time was printed in an office maintained at
the aforesaid place of publication of said news-
paper. That the annexed is a copy of an adver-
tisement as it was published in regular issues
(and not in supplemental form) of said news-
paper on
AFFIDAVIT OF PUBLICATION
______________________________________
Notary Public in and for
The State of Alaska.
Third Division
Anchorage, Alaska
MY COMMISSION EXPIRES
______________________________________
10/30/2022
and that such newspaper was regularly distrib-
uted to its subscribers during all of said period.
That the full amount of the fee charged for the
foregoing publication is not in excess of the rate
charged private individuals.
Signed________________________________
Subscribed and sworn to before me
this 31st day of October 2022.
Account #: 100869 ST OF AK/AK OIL AND GAS CONSERVATION COMMISSION
333 W. 7TH AVE STE 100, ANCHORAGE, AK 99501
Order #: W0033890 Cost: $346.6
Revised Notice Rescheduling Public HearingSTATE OF ALASKAALASKA OIL AND GAS CONSERVATION COMMISSION
RE: Docket Number: ERIO‑22‑002
By application received August 11, 2022, ConocoPhillips Alaska, Inc. (CPAI) requested the Alaska Oil and Gas Conservation
Commission (AOGCC) issue an order approving a pilot enhanced
oil recovery (EOR) project for the Coyote Interval in the Kuparuk River Unit (KRU). Enhanced recovery regulations (20 AAC 25.402) are in place to
ensure that EOR injection projects are conducted in a manner that will lead to increased ultimate recovery, prevent the injected fluids from escaping the injection interval, and protect sources of freshwater. Operators must apply for, and be granted, an order
that authorizes EOR injection before they can commence injection operations. Part of the application process requires the operator to notify, and provide a copy of the application to, all operators and surface owners within a ¼‑mile radius of the proposed
injection well(s). For situations where the viability of a specific EOR
process has not been demonstrated as being effective in a certain application, such as this proposal to conduct water injection for EOR purposes in the Coyote Interval, 20 AAC 25.450(b) allows the AOGCC to issue an injection order approving a pilot EOR injection
project to allow for the gathering of information necessary to show whether or not it is viable before a full field project is pursued. Pilot project EOR orders are usually time limited and often require different data collection and reporting requirements than a
conventional EOR injection order since the purpose of a pilot EOR injection project is to demonstrate feasibility of a process before pursuing it on a fieldwide basis.
This notice does not contain all the information filed by CPAI. You
may obtain more information about this filing by contacting the AOGCC’s Special Assistant, Samantha Carlisle, at (907) 793‑1223 or Samantha.Carlisle@alaska.gov.
The AOGCC is rescheduling the public hearing on this matter from November 8, 2022 to November 29, 2022 at 10:00 a.m. The hearing, which may be changed to full virtual if necessary, will be held in the AOGCC hearing room located at 333 West 7th Avenue,
Anchorage, AK 99501. The audio call‑in information is (907) 202‑7104, conference ID no. 592 156 542#. Anyone who wishes to participate remotely using MS Teams video conference should contact Samantha Carlisle at least two business days before the
scheduled public hearing to request an invitation for the MS Teams.
In addition, written comments regarding this application may be submitted to the AOGCC, at 333 west 7th Avenue, Anchorage,
AK 99501 or samantha.carlisle@alaska.gov. Comments must be
received no later than the conclusion of the November 29, 2022 hearing. Individuals or groups of people with disabilities who require
special accommodations to comment or attend the hearing should contact Samantha Carlisle at (907) 793‑1223, no later than November 21, 2022.
Jessie L. ChmielowskiCommissioner
Pub: Oct. 30, 2022
STATE OF ALASKA
THIRD JUDICIAL DISTRICT
2024-07-14
Document Ref: JOJBV-C6ZHM-RYLPK-S2QOW Page 4 of 50
3
From:Perfetta, Patrick J
To:Carlisle, Samantha J (OGC); Roby, David S (OGC)
Subject:RE: [EXTERNAL]RE: Conflict with October 6th Coyote pilot enhanced oil recovery project
Date:Thursday, September 8, 2022 10:58:59 AM
Samantha,
Yes, the October 20th date will work for CPAI. Also, thanks for confirming that a representative need
not be present for the October 6th date.
Thank you for accommodating us.
Best Regards,
Pat Perfetta
Principal Geologist | ConocoPhillips Alaska | O: 907-263-4531 | C: 713-446-5359
From: Carlisle, Samantha J (OGC) <samantha.carlisle@alaska.gov>
Sent: Thursday, September 8, 2022 10:23 AM
To: Perfetta, Patrick J <Patrick.J.Perfetta@conocophillips.com>; Roby, David S (OGC)
<dave.roby@alaska.gov>
Subject: [EXTERNAL]RE: Conflict with October 6th Coyote pilot enhanced oil recovery project
CAUTION:This email originated from outside of the organization. Do not click links or open
attachments unless you recognize the sender and know the content is safe.
Patrick,
Looking at our calendar, we can do October 20th at 10am. Please let me know if this works
for CPAI. We will open the record on October 6th and just reschedule to October 20th, if
that date works for CPAI. No one from CPAI needs to be in person for the October 6th
hearing, unless someone wants to be.
Thank you,
Samantha Carlisle
AOGCC Special Assistant
Alaska Oil and Gas Conservation Commission
333 West 7th Avenue
Anchorage, AK 99501
(907) 793-1223
CAUTION: This email originated from outside the State of Alaska mail system.
Do not click links or open attachments unless you recognize the sender and know
the content is safe.
From: Perfetta, Patrick J <Patrick.J.Perfetta@conocophillips.com>
Sent: Wednesday, September 7, 2022 1:33 PM
To: Roby, David S (OGC) <dave.roby@alaska.gov>; Carlisle, Samantha J (OGC)
<samantha.carlisle@alaska.gov>
Cc: Perfetta, Patrick J <Patrick.J.Perfetta@conocophillips.com>
Subject: Conflict with October 6th Coyote pilot enhanced oil recovery project
Samantha/Dave,
Following up with respect to the recently scheduled public hearing for the subject pilot injection
project, for the Coyote interval, within the KRU. Unfortunately, two key members of the
ConocoPhillips team responsible for this project are out of state during the time of the scheduled
hearing. Would it be possible to accommodate an alternative date for this hearing? Our team is
available anytime after the first week of October, with the exception of October 27th.
Please let me know if you are able to help with this request.
Best Regards,
Patrick Perfetta
Principal Geologist | ConocoPhillips Alaska | O: 907-263-4531 | C: 713-446-5359
2
Notice of Public Hearing
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
RE: Docket NXPEHUERIO-22-002
By application received August 11, 2022, ConocoPhillips Alaska, Inc.(CPAI) requested the
Alaska Oil and Gas Conservation Commission (AOGCC) issue an order approving a pilot
enhanced oil recovery (EOR) project for the Coyote Interval in the Kuparuk River Unit (KRU).
Enhanced recovery regulations (20 AAC 25.402) are in place to ensure that EOR injection projects
are conducted in a manner that will lead to increased ultimate recovery, prevent the injected fluids
from escaping the injection interval, and protect sources of freshwater. Operators must apply for,
and be granted, an order that authorizes EOR injection before they can commence injection
operations. Part of the application process requires the operator to notify, and provide a copy of
the application to, all operators and surface owners within a ¼-mile radius of the proposed injection
well(s). For situations where the viability of a specific EOR process has not been demonstrated as
being effective in a certain application, such as this proposal to conduct water injection for EOR
purposes in the Coyote Interval, 20 AAC 25.450(b) allows the AOGCC to issue an injection order
approving a pilot EOR injection project to allow for the gathering the information necessary to
show whether or not it is viable before a full field project is pursued. Pilot project EOR orders are
usually time limited and often require different data collection and reporting requirements than a
conventional EOR injection order since the purpose of a pilot EOR injection project is to
demonstrate feasibility of a process before pursuing it on a fieldwide basis.
This notice does not contain all the information filed by CPAI.You may obtain more information
about this filing by contacting the AOGCC’s Special Assistant, Samantha Carlisle, at (907) 793-
1223 or Samantha.Carlisle@alaska.gov.
The AOGCC has scheduled a public hearing on this matter for October 6, 2022 at 10:00 a.m.The
hearing, which may be changed to full virtual if necessary, will be held in the AOGCC hearing room
located at 333 West 7th Avenue, Anchorage, AK 99501. The audio call-in information is (907) 202-
7104, conference ID no. 592 156 542#. Anyone who wishes to participate remotely using MS
Teams video conference should contact Samantha Carlisle at least two business days before the
scheduled public hearing to request an invitation for the MS Teams.
In addition, written comments regarding this application may be submitted to the AOGCC, at 333
west 7th Avenue, Anchorage, AK 99501 or samantha.carlisle@alaska.gov. Comments must be
received no later than the conclusion of the October 6, 2022 hearing.
Individuals or groups of people with disabilities who require special accommodations to comment
or attend the hearing should contact Samantha Carlisle at (907) 793-1223, no later than September
29, 2022.
Jeremy M. Price
Chair, Commissioner
Jeremy
Price
Digitally signed
by Jeremy Price
Date: 2022.09.02
09:00:12 -08'00'
From:Carlisle, Samantha J (OGC)
To:AOGCC_Public_Notices
Subject:Public Hearing Notice ERIO-22-002 (CPAI)
Date:Friday, September 2, 2022 10:22:00 AM
Attachments:ERIO-22-002 Public Hearing Notice.pdf
RE: Docket Number: ERIO-22-002
Samantha Carlisle
AOGCC Special Assistant
Alaska Oil and Gas Conservation Commission
333 West 7th Avenue
Anchorage, AK 99501
(907) 793-1223
Bernie Karl
K&K Recycling Inc.
P.O. Box 58055
Fairbanks, AK 99711
Mailed 9/2/22
Adam Garrigus being first duly sworn on oath
deposes and says that she is a representative of
the Anchorage Daily News, a daily newspaper.
That said newspaper has been approved by the
Third Judicial Court, Anchorage, Alaska, and
it now and has been published in the English
language continually as a daily newspaper in
Anchorage, Alaska, and it is now and during all
said time was printed in an office maintained at
the aforesaid place of publication of said news-
paper. That the annexed is a copy of an adver-
tisement as it was published in regular issues
(and not in supplemental form) of said news-
paper on
AFFIDAVIT OF PUBLICATION
______________________________________
Notary Public in and for
The State of Alaska.
Third Division
Anchorage, Alaska
MY COMMISSION EXPIRES
______________________________________
09/04/2022
and that such newspaper was regularly distrib-
uted to its subscribers during all of said period.
That the full amount of the fee charged for the
foregoing publication is not in excess of the rate
charged private individuals.
Signed________________________________
Subscribed and sworn to before me
this 6th day of September 2022.
Account #: 100869 ST OF AK/AK OIL AND GAS CONSERVATION COMMISSION
333 W. 7TH AVE STE 100, ANCHORAGE, AK 99501
Order #: W0032601 Cost: $341.6
Notice of Public HearingSTATE OF ALASKAALASKA OIL AND GAS CONSERVATION COMMISSION
RE: Docket Number: ERIO‑22‑002
By application received August 11, 2022, ConocoPhillips Alaska, Inc. (CPAI) requested the Alaska Oil and Gas Conservation Commission (AOGCC) issue an order approving a pilot enhanced oil recovery (EOR) project for the Coyote Interval in the Kuparuk
River Unit (KRU). Enhanced recovery regulations (20 AAC 25.402) are in place to ensure that EOR injection projects are conducted in a manner
that will lead to increased ultimate recovery, prevent the injected fluids from escaping the injection interval, and protect sources of freshwater. Operators must apply for, and be granted, an order that authorizes EOR injection before they can commence injection
operations. Part of the application process requires the operator to notify, and provide a copy of the application to, all operators and surface owners within a ¼‑mile radius of the proposed injection well(s). For situations where the viability of a specific EOR
process has not been demonstrated as being effective in a certain application, such as this proposal to conduct water injection for EOR purposes in the Coyote Interval, 20 AAC 25.450(b) allows the AOGCC to issue an injection order approving a pilot EOR injection
project to allow for the gathering the information necessary
to show whether or not it is viable before a full field project is pursued. Pilot project EOR orders are usually time limited and often require different data collection and reporting requirements
than a conventional EOR injection order since the purpose of a
pilot EOR injection project is to demonstrate feasibility of a process before pursuing it on a fieldwide basis.
This notice does not contain all the information filed by CPAI. You
may obtain more information about this filing by contacting the AOGCC’s Special Assistant, Samantha Carlisle, at (907) 793‑1223 or Samantha.Carlisle@alaska.gov.
The AOGCC has scheduled a public hearing on this matter for October 6, 2022 at 10:00 a.m. The hearing, which may be changed to full virtual if necessary, will be held in the AOGCC hearing room located at 333 West 7th Avenue, Anchorage, AK 99501. The audio
call‑in information is (907) 202‑7104, conference ID no. 592 156 542#. Anyone who wishes to participate remotely using MS Teams video conference should contact Samantha Carlisle at least two business days before the scheduled public hearing to request an
invitation for the MS Teams. In addition, written comments regarding this application may be submitted to the AOGCC, at 333 west 7th Avenue, Anchorage,
AK 99501 or samantha.carlisle@alaska.gov. Comments must be received no later than the conclusion of the October 6, 2022 hearing.
Individuals or groups of people with disabilities who require
special accommodations to comment or attend the hearing should contact Samantha Carlisle at (907) 793‑1223, no later than September 29, 2022.
Jeremy M. PriceChair, Commissioner
Pub: Sept. 4, 2022
STATE OF ALASKA
THIRD JUDICIAL DISTRICT
2024-07-14
Document Ref: 66NFL-SCS5A-S649Z-CHTLN Page 64 of 83
1
By Samantha Carlisle at 9:59 am, Aug 12, 2022
Application to the Alaska Oil and Gas Conservation Commission
for Approval of Pilot Injection into the Coyote Reservoir
Kuparuk River Unit
August 11, 2022
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
2
Table of Contents
20 AAC 25.402(c)(1) Plat of Wells Penetrating Injection Zone………………………………………………………………….5
20 AAC 25.402(c)(2) Operators and Surface Owners within ¼ Mile of Injection Operations……………….......6
20 AAC 25.402 (c)(3) Affidavit Regarding Notice to Surface Owners………………………………………………………..7
20 AAC 25.402(c)(4) Description of the Proposed Operation……………………………………………………………………8
20 AAC 25.402(c)(5) Description and Depth of Pool Affected…………………………………………………………………..9
20 AAC 25.402(c)(6) Description of the Formation…………………………………………………………………………………10
20 AAC 25.402(c)(7) Logs of the Injection Wells…………………………………………………………………………………….13
20 AAC 25.402 (c)(8) Mechanical Integrity of Injection Wells…………………………………………………………………14
20 AAC 25.402(c)(9) Injection Fluid Analysis and Injection Rates……………………………………………………………16
20 AAC 25.402(c)(10) Estimated Average and Maximum Injection Pressures…………………………………………17
20 AAC 25.402(c)(11) Fracture Information……………………………………………………………………………………………18
20 AAC 25.402(c)(12) Quality of Formation Water…………………………………………………………………………………20
20 AAC 25.402 (c)(13) Aquifer Exemption Reference……………………………………………………………………………..21
20 AAC 25.402(c)(14) Incremental Hydrocarbon Recovery…………………………………………………………………….23
20 AAC 25.402(c)(15) Mechanical Condition of Wells Within ¼ Mile of Proposed Area………………………….24
List of Figures
Figure 1: Proposed Coyote Pilot Injection Project Well Locations……………………………………………………………4
Figure 2: One-Quarter Mile Circle/Tangent with Proposed Injectors and Formation Penetrations………….5
Figure 3: Palm 1 Type Log……………………………………………………………………………………………………………………….9
Figure 4: Coyote Top Structure………………………………………………………………………………………………………..11/12
Figure 5: Schematic of Proposed Injection Well…………………………………………………………………………………….15
Figure 6: Fracture Gradient of Coyote Upper Confining Layer……………………………………………………………….19
Figure 7: Composition of produced water from 3S-24B Coyote test well………………………………………………20
Figure 8: Palm 1 well Ugnu display………………………………………………………………………………………………………..22
Figure 9: List of wells within ¼ mile radius of proposed area…………………………………………………………………24
Figure 10: Estimated Top of Cement in wells within ¼ mile radius of proposed area…………………………….24
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
3
Introduction
ConocoPhillips Alaska, Inc. (CPAI), as operator of the Kuparuk River Unit (KRU) and non-unitized lease
ADL 392374, submits this application to the Alaska Oil and Gas Conservation Commission (AOGCC) for
authorization for water injection into the Coyote reservoir through a proposed waterflood pattern pilot.
This project involves injecting water, and potentially gas into the Coyote reservoir (the Coyote reservoir
is defined in the section 20 AAC 25.402(c)(5) Description and Depth of Pool Affected) to test the
injectivity of water (and potentially gas) and subsequent production response. The feasibility of injection
into the Coyote reservoir has not been established and is therefore considered a “pilot” project. This
pilot project will aid in determining the commercial viability of developing Coyote as an enhanced oil
recovery project. The impacted area of the pilot project (adjacent to drill site 3S in the Kuparuk River
Unit) is depicted below in Figure 1. The requested duration of the order is 3 years. This will allow time to
drill the first injector, test injection performance, and analyze results. This will also allow for ample time
to potentially drill and complete a second injection well to fully complete a producer centered pattern
for additional data collection if warranted.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
4
Figure 1: Proposed Coyote pilot injection project showing approximate well locations southwest of the Kuparuk 3S
drill site. Blue dashed line is the first proposed injector, Green dashed line is proposed producer, and gray dashed
line is future potential injector to complete a fully supported producer centered pattern.
In Q4 2021, the 3S-24B exploration well was drilled to understand the ability to produce from the
Coyote interval. The well was drilled as an exploration well within the KRU. No pool rules are established
for this reservoir. Drilling of a horizontal producer-injector well pair is planned for Q4 2022, with
injection operations commencing in ~Q1 2023.
The final development design for the Coyote reservoir is expected to be a line-drive water alternating
gas (WAG) flood with horizontal producers and horizontal injectors drilled approximately parallel to the
maximum principal stress direction. These pilot results will inform whether this development concept is
optimal. If a commercially viable discovery is established and the development is sanctioned, then CPAI
would apply at that time to the AOGCC to establish pool rules and an area injection order.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
5
20 AAC 25.402(c)(1) Plat of Wells Penetrating Injection Zone
Figure 2 shows the proposed Coyote injection wells within the injection zone. A ¼ mile radius around the
injection laterals is displayed. It should be noted that the 3S-21 well will be P&A’d prior to
commencement of injection operations.
Figure 2: ¼ Mile Circle/Tangent with Proposed Injectors within the injection formation.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
6
20 AAC 25.402(c)(2) Operators and Surface Owners within One Quarter Mile of Injection
Operations
Operators:
No operators other than CPAI within ¼ mile of injection
Surface Owners:
Alaska Department of Natural Resources
Division of Oil and Gas
Attn: Ken Diemer, Unit Manager
550 West 7th Ave., Suite 1100
Anchorage, AK 99501
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
7
20 AAC 25.402 (c)(3) Affidavit Regarding Notice to Surface Owners
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
8
20 AAC 25.402(c)(4) Description of the Proposed Operation
This application to the AOGCC seeks endorsement and authorization for a pilot injection project in the
Coyote Reservoir within the KRU, and an adjacent non-unitized lease (ADL 392374) owned by KRU
working interest owners.
The Coyote pilot injection project involves drilling a horizontal producer-injector well pair. The first
injector to be drilled will be named 3S-701 and will be located 1,000’ to 3,000’ southwest of the 3S-704
planned production well. The optimum pattern spacing for development in this reservoir is still under
analysis. Completion of the 3S-701 injection well will allow interference and injection testing of the
Coyote reservoir to help establish the optimal pattern spacing and potentially support commerciality of
the reservoir.
Depending on the outcome of this first injection well and its testing, a second injection well may be
drilled to continue this long-term injection and production test with a fully supported producer centered
pattern centered around the 3S-704. The requested duration of this order is 3 years. This will allow time
to drill the first injector, test injection performance, analyze results of the first injector, and, potentially,
drill the second injector, test injection performance, and observe & analyze results.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
9
20 AAC 25.402(c)(5) Description and Depth of Pool Affected
The 3S-701 injection well is a pilot appraisal well within the KRU and an adjacent non-unitized lease (ADL
392374). A Coyote pool has not been established. If it is determined that commercially exploitable
hydrocarbons exist within the Coyote interval, and a development project is sanctioned, then a pool will
be established. The gross Coyote reservoir interval is defined by logs from the Palm 1 well over the
measured depth range of 4,270 – 5,115 feet (Figure 3). Location of the Palm 1 is shown on the map in
Figure 4, with bottom hole location immediately west of drillsite 3S.
Figure 3: Palm 1 (UWI: 501032036100) type log showing the Coyote reservoir interval, upper confining
zone, and lower confining zone.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
10
20 AAC 25.402(c)(6) Description of the Formation
Stratigraphy and Sedimentology
The Late Cretaceous Coyote reservoir is a thinly bedded, shallow marine, west to east progradational
system within the Nanushuk formation. The interval likely consists of delta front, distal delta front to
prodelta silts and sands deposited in an elongate NE-SW trend paralleling depositional strike. Gross
thickness of the Coyote interval is approximately 650’ in the 3S area. Average porosity of the Coyote
interval sands is in the range of 23-24%, and average permeability of the reservoir sands is on the order
of 10-20 millidarcies. Net to gross of the interval is approximately 45%. The interval has been penetrated
by numerous wells targeting deeper stratigraphic intervals, both from drill site 3S, and vertical off-ice
exploration wells in and surrounding the Kuparuk River Unit.
Structure and Trap Configuration
The predominant trapping mechanism of the Coyote hydrocarbon accumulation is stratigraphic, with
some structural components. The stratigraphic components include a pinch-out to the west, and shale-
out to the northeast, southeast and southwest. Small 4-way dip closures, and stratigraphic
compartments are believed to be present within the Coyote and are known to contain small gas caps.
The top Coyote depth structure has limited structural relief on the paleo-shelf (on the order of 100’).
The Coyote has more significant relief to the northeast, and southeast as it plunges off the paleo-shelf
(Figure 4A). Limited faulting is present in the area, at the Coyote level. In the proposed injection pilot
area, a single small displacement fault is present near the heel of the proposed producer (Figure 4B).
The fault trend is oriented northwest to southeast, with dip to the northeast. It has a maximum
displacement of 30’, and a length from tip to tip of approximately 2000’. It cuts the Top Coyote, and
extends 300’ into the overburden where it loses throw, and extends into the coyote reservoir by 200’
where it also loses throw. The fault is interpreted to be sealing where it displaces reservoir against
overlying Seabee shale. It is uncertain whether the fault is sealing or not where it juxtaposes reservoir
against reservoir.
Seals
Confining intervals shown in Figure 3, are as follows:
Upper Confining Interval
Distal toe of slope Claystone with thin siltstone beds of the Cretaceous Seabee formation are present in
thicknesses greater than 350’ TVD across the area.
There are no known hydrocarbon bearing zones, between the base of the permafrost to the top of the
Coyote reservoir interval.
Lower Confining Interval
Slope mudstones associated with the Torok formation, are present in thicknesses greater than 300’ TVD
across the area. This same interval forms the upper confining layer of the Kuparuk River Unit, Torok Oil
Pool.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
11
4A
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
12
Figure 4A & 4B: Small- and large-scale top Coyote depth structure maps. Top Coyote penetrations
marked by red x’s. Large scale map includes proposed injection pilot wells, with the aforementioned
fault near the heel of the producer.
4B
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
13
20 AAC 25.402(c)(7) Logs of the Injection Wells
Upon drilling of the injection well(s), logs will be sent to the Commission in accordance with applicable
AOGCC regulations.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
14
20 AAC 25.402(c)(8) Mechanical Integrity of Injection Wells
See Figure 5 below for a proposed injection schematic.
The injection well design is like other injection wells in the KRU. A three-string design will be used as
shown in the schematic below.
Surface casing set below the base of the West Sak in the Colville Group will be cemented back to
surface. Within the pilot area, the base of permafrost is interpreted to be at ~1,650 ft. SSTVD. The
intermediate hole will be drilled to a casing point within the upper Coyote interval at approximately 85
degrees inclination.
The Coyote interval will be drilled horizontally and completed open hole with solid liner containing ball
drop fracture sleeves and liner top hanger and packer. External swell packers will be added to provide
zonal isolation between fracture stages and as needed to isolate any out of zone intervals or fault
crossings along the lateral. The packer will be set within 200’ MD of the intended injection interval in
accordance with 20 AAC 25.412(b).
The tubing/casing annulus pressure of each injection well will be tested in accordance with 20 AAC
25.412(c). Drilling and completion operations will be performed in accordance with applicable AOGCC
regulations. In accordance with 20 AAC 25.412(d), cement quality logs or other data approved by the
Commission will be provided for all injection wells to demonstrate isolation of the injected fluids to the
approved interval.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
15
Figure 5: Schematic of Proposed Injection Well
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
16
20 AAC 25.402(c)(9) Injection Fluid Analysis and Injection Rates
The Coyote Pilot Injection Project will occur at 3S pad, a satellite drillsite that is connected to the KRU
pipeline network. KRU and its network of drillsites were built to allow only one type of water, either
produced or sea, on a drill site at a time. Water service for each drillsite is selected to optimize the
production potential of the entire asset. 3S is currently on produced water service, but this could change
in the future. Part of the purpose for this pilot is to confirm compatibility. Injection rates may exceed
15,000 bbl/d for each injection well drilled for the pilot project, depending on reservoir quality. A gas
injection rate schedule will be dependent on post-drill analysis of pore volume and voidage
replacement. Water and gas injection rates will ultimately be constrained by bottom hole pressure and
overburden strength. Primary injection fluids include:
• Produced water and gas from all present and yet-to-be defined oil pools within the KRU
• Beaufort seawater sourced from the Kuparuk seawater treatment plant
• Enriched hydrocarbon gas (MI): Blend of KRU lean gas with indigenous and/or imported natural
gas liquids
Other fluids may also be injected for reservoir stimulation, reservoir performance evaluation, freeze
protection, chemical inhibition, or to otherwise ensure efficient and safe operation of the Coyote
injection well(s). These fluids are not planned for continuous injection, or as a means for enhanced
recovery. The volumes of these other fluids are not expected to hinder the recovery efficiency or
performance. These other fluids include:
• Fluids used during hydraulic stimulation
• Tracer survey fluids to monitor reservoir performance
• Fluids used to improve near wellbore injectivity (acids, solvents, etc.)
• Fluids used to seal wellbore intervals which negatively impact recovery (cement, resin, etc.)
• Fluids associated with freeze protection (diesel, crude, glycol, methanol, etc.)
• Standard oilfield chemicals (corrosion inhibitor, scale inhibitor, etc.)
Water compatibility modelling indicates barium sulfate and calcium carbonate scale formation in
production wells, as has been experienced to various degrees in KRU pools, is likely due to the mixing of
formation water with seawater or KRU produced water. A scale inhibition treatment program, like that
employed elsewhere in KRU, will be performed at Coyote as required. As a part of the upcoming drilling
campaign, a whole core will be collected. At that time additional water compatibility testing will be
performed.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
17
20AAC 25.402(c)(10) Estimated Average and Maximum Injection Pressures
The sand-face injection pressure of the pilot injection well(s) will be maintained below the estimated
strength of the upper confining zone. Analysis of available data in the confining zone yielded a fracture
gradient of ~0.65 psi/ft. The pilot project will target an injection gradient of 0.61 psi/ft, with an
operating maximum of 0.62 psi/ft, but this is subject to change as more information is gathered. The
pilot project will operate at or below the interpreted fracture gradient of the Coyote reservoir interval.
The reservoir has demonstrated a fracture gradient of 0.62 psi/ft in the 3S-24B well test.
At 4,112’ TVDSS the maximum injection pressure will be 2,549 psi (0.62 psi/ft). The sand-face injection
pressure of each injector will be set based on the realized depth of the reservoir.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
18
20AAC 25.402(c)(11) Fracture Information
In the area of the proposed Coyote injection pilot, the Coyote reservoir is overlain by distal toe of slope
claystone with thin siltstone beds of the Cretaceous Seabee formation in thicknesses greater than 350’
TVD. The underlying confining zone beneath the Coyote reservoir consists of slope mudstones
associated with the Torok formation in thicknesses greater than 300’ TVD. The lower confining zone
forms the upper confining zone of the KRU, Torok Oil Pool (Figure 3). Leak-off test (LOT) data was
collected in the 3S-611, and 3S-612 Torok horizontal wells within the overburden immediately above the
Torok reservoir, for calibration of its strength. These LOT’s returned an ~16 pound per gallon (ppg) mud-
weight equivalent strength for the Torok reservoir overburden. The calculated hydraulic fracture
gradient for the overlying Seabee Formation is based on rock strength curves calibrated to fracture
stimulation data collected during the stimulation of the Coyote reservoir in the 3S-24B well. At the
present time there is no leak off, or formation integrity test data for the overlying confining zone. CPAI
has plans to perform a diagnostic fracture injection test (DFIT) within the upper confining zone within
the 3S-24B well to further calibrate the overburden rock strength. This test is planned to occur during
the first half of 2023, prior to P&A of this well.
The cross-plot in Figure 6 shows the resulting estimate for the initiation pressure for hydraulic fracturing
of the Seabee confining zone in true vertical depth subsea and pore pressure (black line). Also shown is
the pore pressure of the Coyote reservoir sandstone and the planned range of injection pressures for
the Coyote injection pilot project. Example gradients are shown at 0.61 psi/ft (gray line), 0.62 psi/ft
(orange line), and the Coyote pore pressure of 0.44 psi/ft (brown line).
Fractures will not propagate within the Coyote Reservoir with injection pressures at or below 0.62 psi/ft
(fracture gradient of the reservoir) and will not propagate into the confining interval if injection
pressures are below 0. 65psi/ft (fracture gradient of the overlying seal).
The anticipated water injection rate for this pilot project may exceed 15,000 BWPD per injection well.
Injection into the Coyote Reservoir will occur at or below the fracture gradient of the Coyote Sands and
below the fracture gradient of the overlying confining shales (0.62 psi/ft and 0.65 psi/ft respectively). At
4,150ft TVDSS the targeted sand-face injection pressure will be 2,531 psi (0.61 psi/ft), and the maximum
injection pressure will be 2,573 psi (0.62 psi/ft gradient).
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
19
Figure 6: Pressure gradients associated with Coyote pore pressure, targeted injection pressure, max
injection pressure and upper confining zone pressure.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
20
20AAC 25.402(c)(12) Quality of Formation Water
A small amount of sustained formation water (~11% sustained water cut) was produced from the 3S-24B
production test from the Coyote reservoir interval. Composition of this water, from laboratory analysis
of a sample taken on January 28, 2022, is included in figure 7. The TDS of this sample was 21,185 mg/l,
which is above the 10,000 mg/l cut-off for freshwater.
Figure 7: Composition of produced water from 3S-24B Coyote test well
Analysis Name Value Unit
Aluminum - mg/l
Boron 26.2 mg/l
Barium 1.3 mg/l
Bicarbonate 2,409.8 mg/l
Calcium 99.4 mg/l
Carbonate 13.0 mg/l
Chloride 10,081.1 mg/l
Conductivity 17,850.0 uS/cm
Iron 0.1 mg/l
Potassium 48.2 mg/l
Lithium 2.2 mg/l
Magnesium 91.7 mg/l
Manganese 0.2 mg/l
Sodium 8,246.5 mg/l
Phosphorus 0.3 mg/l
PH 8.3
Silicon 6.1 mg/l
Sulfate 151.5 mg/l
Specific Gravity @ 60 degrees F 1.0
Strontium 7.5 mg/l
Zinc - mg/l
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
21
20AAC 25.402(c)(13) Aquifer Exemption Reference
The EPA has adopted an aquifer exemption for the “portions of aquifers on the North Slope described by
a ¼ mile area beyond and lying directly below the Kuparuk River Unit oil and gas producing field” 40
C.F.R. 147.102(b)(3). The commission has adopted that exemption by reference 20 AAC 25.44(c). The
proposed Coyote ERIO area is within the KRU and within the scope of the aquifer exemption.
One lease proposed for inclusion in this ERIO application is ADL 392374, depicted in Figure 1. This lease
is not presently within and part of the KRU. Historically, the lands were within the KRU in 1984, when
the EPA adopted the aquifer exemption, and in 1986, when the Commission incorporated the KRU
aquifer exemption. Accordingly, ADL 392374 is within the aquifer exception as originally approved by
EPA and AOGCC.
The Ugnu interval in the 3S area is interpreted as being a transitional zone at the base of the permafrost.
However, there is uncertainty in this interpretation. As background, resistivities in clean sands greater
than 100 Ohmm have a good correspondence to the presence of permafrost in the Kuparuk area. In the
absence of temperature data, this resistivity cutoff is utilized for picking the approximate base of
permafrost. For reference, in the Palm 1 well (Figure 8.) the base of continuous 100 ohmm resistivity in
clean sands is present down to a depth of ~1,570’ MD. Below this depth, in the interval from 1,610 -
1,905’ MD, there is a transitional zone where resistivities approach 100 ohmm in clean sands. There are
two possible interpretations for this interval 1) it is a transitional zone of discontinuous permafrost, or 2)
it is a zone of low salinity water. No test data, or samples are available for this interval to confirm which
is the case. If the zone is not permafrost, the calculated salinity of this interval would be ~2,000 ppm.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
22
Figure 8. Ugnu interval in the Palm 1 well.
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
23
20AAC 25.402(c)(14) Incremental Hydrocarbon Recovery
Initial reservoir modeling and simulation estimate a primary depletion recovery factor of 5-10%, a
cumulative recovery factor from waterflood operations between 20-30% and an incremental 1-5%
recovery for enriched gas injection (EWAG).
Application to the AOGCC for Approval of Pilot Injection
into the Coyote Reservoir, Kuparuk River Unit
24
20AAC 25.402(c)(15) Mechanical Condition of Wells Within ¼ Mile of Proposed Area
Wells located within ¼ mile radius of the proposed Coyote horizontal injection wells are included in
Figure 9. Of these three wells, the 3S-24B is the only well that currently has cement across the Coyote
interval (Figure 10.). It should be noted that the 3S-21 will be plugged & abandoned prior to fracture
stimulation operations of the proposed Coyote horizontal wells. During fracture stimulation operations,
the OA (annulus between the 7” and 9-5/8” casing) of the of the 3S-03 will be monitored.
Well Well Type Status Mech Integrity Notes
3S-03 Kuparuk Producer Active No issues Well to be pressure monitored
during Coyote fracture
stimulation.
3S-21 Kuparuk Injector To be
Abandoned
No issues P&A will take place prior to
drilling Coyote injectors within
¼ mile
3S-24B Coyote Producer Active No Issues 3S-24B Sidetrack drilled 2021
as Coyote exploration well.
Well to be P&A’d shortly after
beginning injection in offset
Coyote wells.
Figure 9: Wells within ¼ mile radius of proposed area. See figure 2 for referenced well locations.
Well Estimated TOC (MD) Estimated TOC (TVD)
3S-03 6,850’ 5,229’
3S-21 8,598’ 5,260’
3S-24B 7,550’ 3,758’
Figure 10: Estimated top of cement in wells from Figure 8. For reference, the top of the Coyote interval
is located at approximately 4,100’ TVD.