Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation Commission
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HomeMy WebLinkAbout225-1381. Type of Request: Abandon Plug Perforations Fracture Stimulate Repair Well Operations shutdown
Suspend Perforate Other Stimulate Pull Tubing Change Approved Program
Plug for Redrill Perforate New Pool Re-enter Susp Well Alter Casing Other: ___________________
2. Operator Name: 4. Current Well Class: 5. Permit to Drill Number:
Exploratory Development
3. Address: Stratigraphic Service
6. API Number:
7. If perforating: 8. Well Name and Number:
What Regulation or Conservation Order governs well spacing in this pool?
Will planned perforations require a spacing exception? Yes No
9. Property Designation (Lease Number): 10. Field/Pool(s):
Colville River / Undefined Waste Disposal
11.
Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD):
14120 3947
none None
Casing Collapse
Structural
Conductor
Surface 3180
Intermediate 1 3090
Intermediate 2 5410
Liner
Packers and SSSV Type: Packers and SSSV MD (ft) and TVD (ft):
12. Attachments: Proposal Summary Wellbore schematic 13. Well Class after proposed work:
Detailed Operations Program BOP Sketch Exploratory Stratigraphic Development Service
14. Estimated Date for 15. Well Status after proposed work:
Commencing Operations: OIL WINJ WDSPL Suspended
16. Verbal Approval: Date: GAS WAG GSTOR SPLUG
AOGCC Representative: GINJ Op Shutdown Abandoned
Contact Name: Abby Warren
Contact Email:
Contact Phone:907-240-9293
Authorized Title: Drilling Engineer
Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number:
Plug Integrity BOP Test Mechanical Integrity Test Location Clearance
Other:
Post Initial Injection MIT Req'd? Yes No
Spacing Exception Required? Yes No Subsequent Form Required:
APPROVED BY
Approved by: COMMISSIONER THE AOGCC Date:
Comm. Comm. Sr Pet Eng Sr Pet Geo Sr Res Eng
6974
abby.warren@conocophillips.com
10960-10974
Perf Pups: 11792-14067
807
4.5"
6894-6898
Perf Pups: 6981-6976'
1/20/2026
14090'2827
4-1/2" x 3-1/2"
6974
Packer: Baker Premier Packer
SSSV: TRMAXX-5E SSV (flipper locked
out/hydraulic sleeve open)
8233'
2630'
Perforation Depth MD (ft):
10756'
20"
11-3/4"
80'
6828'
114'
2670'
69837"
9-5/8"
11413'
Length Size
L80
TVD Burst
11056
7240
MD
5750
5830
114'
2327.5'
PRESENT WELL CONDITION SUMMARY
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
APPLICATION FOR SUNDRY APPROVALS
20 AAC 25.280
ADL025558, ADL0025559
225-138
P.O. Box 100360, Anchorage, AK 99510 50-103-20659-01-00
ConocoPhillips Alaska Inc
CRU CD1-47NA
Tubing Grade: Tubing MD (ft):
Packer:10722' MD/6813' TVD
SSSV:2118' MD / 1997' TVD
Perforation Depth TVD (ft): Tubing Size:
17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approval.
Authorized Name and
Digital Signature with Date:
AOGCC USE ONLY
approval: Notify AOGCC so that a representative may witness Sundry Number:
BOP Test Mechanical Integrity Test Location Clearance
ection MIT Req'd? Yes No
ption Required? Yes No Subsequent Form Required:
AOGCC USE ONLY
Contact Name: Abby Warren
Contact Email:
Contact Phone:907-240-9293
e: Drilling Engineer
abby.warren@conocophillips.com
certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approval.
me and
re with Date:
15. Well Status after proposed work:
OIL WINJ W DSPL Suspended
GAS WAG GSTOR SPLUG
GINJ Op Shutdown Abandoned
proval: Date:
esentative:
Date for
Operations:
13. Well Class after proposed work:
Exploratory Stratigraphic Development Service
nts: Proposal Summary Wellbore schematic
ations Program BOP Sketch
SSV Type: Packers and SSSV MD (ft) and TVD (ft):
SSSV: TRMAXX-5E SSV (flipper locked
out/hydraulic sleeve open)
Packer:10722' MD/6813' TVD
SSSV:2118' MD / 1997' TVD
11056L804-1/2" x 3-1/2"6894-6898
Perf Pups: 6981-6976'2-14067
pth MD (ft):Tubing Grade: Tubing MD (ft):Perforation Depth TVD (ft): Tubing Size:
697414090'4.5"2827
54107240698311413'7"807te2
309057506828'10756'9-5/8"8233'te 1
318058302327.5'2670'11-3/4"2630'e
114'114'20"80'or
al
CollapseBurstTVDMDSizeLength
Junk (MD):
None
Plugs (MD):
none
MPSP (psi):
3947
Effective Depth TVD:Effective Depth MD:Total Depth TVD (ft):
6974
D (ft):
PRESENT WELL CONDITION SUMMARY
10. Field/Pool(s):
Colville River / Undefined Waste Disposal
signation (Lease Number):
ADL0025559
8. Well Name and Number:
CRU CD1-47
g:
tion or Conservation Order governs well spacing in this pool?
perforations require a spacing exception?Yes No
NA
5. Permit to Drill Number:
6. API Number:
225-138
50-103-20659-01-00
4.Current Well Class:
Exploratory Development
Stratigraphic Service
360, Anchorage, AK 99510
ame:
s Alaska Inc
quest: Abandon Plug Perforations Fracture Stimulate Reppair Well Operations shutdown
Suspend Perforate Other Stimulate Pull Tubing Change Approved Program
Plug for Redrill Perforate New Pool Re-enter Susp W ell Alter Cas Other: _r Casing __________________ __
Form 10-403 Revised 10/2021 Approved application is valid for 12 months from the date of approval.
326-030
By Grace Christianson at 2:09 pm, Jan 14, 2026
TS 1/15/26
A
DSR-1/16/26
X
X
10-407
Class I disposal operations to be in accordance with EPA issued permit.
CBL logs and interpretation to be submitted to the AOGCC asap before proceeding for 9-5/8" and 7".
BOP test to 5000 psi initially and subsequently BOP test pressure to 4200 psi; Annular preventer test to 2500 psi.
A variance for packer depth under 20 AAC 25.412(b) is granted to allow
packer to be placed up to ~300' above the Int2 shoe depth and in the confining zone.
BOPE testing on a 21-day interval is approved with the attached conditions
VTL 1/22/2026JLC 1/22/2026
01/22/26
CPAIs request to allow BOPE testing on a 21-day interval is approved with the following
conditions:
- CPAI must continue to implement the Between Wells Maintenance Program as approved
by AOGCC.
- The initial test after rigging up BOPE to drill a well must be to the rated working pressure
as provided in API Standard 53.
- CPAI is encouraged to take advantage of opportunities to test within the 21-day time limit.
- CPAI must adhere to original equipment manufacturer recommendations and replacement
parts for BOPE.
- Requests for extensions beyond 21 days must include justification with supporting
information demonstrating the additional time is necessary for well control purposes or to
mitigate a stuck drill string.
ConocoPhillips Alaska, Inc.
Post Office Box 100360
Anchorage, Alaska 99510-0360
Telephone 907-276-1215
January 14th, 2025
Alaska Oil and Gas Conservation Commission
333 West 7th Avenue, Suite 100
Anchorage, Alaska 99501
Re: Sundry Application: Change approved program for CD1-47A (PTD 225-138)
Dear Sir or Madam:
ConocoPhillips Alaska, Inc. hereby applies for a change to the approved program for CD1-47A. The request is to go to a 21
day BOPE test interval while under the approved permit to drill 225-138.
Doyon 142 strongly supports the CPAI BOPE between well maintenance program and over the last year has had 26 full BOP
tests with 20 passing tests for a 77% first time pass rate. There were 28 component failures over 754 components tested in
these 26 tests equating to a 96% overall BOPE equipment effectiveness during BOPE testing in 2025.
Please find attached the information required by 20 ACC 25.005 (a) and (c) for your review. Pertinent information
attached to this application includes the following:
1. Form 10-403
If you have any questions or require further information, please contact Abby Warren at 907-240-9293
(abby.warren@conocophillips.com)
Sincerely, cc:
CD1-47 Well File / Jenna Taylor ATO 1804
Will Earhart ATO 1552
Abby Warren Justin Cremer ATO 1548
Drilling Engineer Sarah Frey ATO 1778
Alaska Oil and Gas
Conservation Commission
333 West Seventh Avenue
Anchorage, Alaska 99501-3572
Main: 907.279.1433
Fax: 907.276.7542
www.aogcc.alaska.gov
Chris Brillon
Wells Engineering Manager
Conoco Phillips Alaska, Inc.
700 G Street
Anchorage, AK, 99501
Re: Coville River Unit, Undefined Waste Disposal Pool, CRU CD1-47A
Conoco Phillips Alaska, Inc.
Permit to Drill Number: 225-138
Surface Location: 4728 FSL, 3029 FEL, S5 T11N, R5E, UM
Bottomhole Location: 4993 FSL, 5040 FEL, S32, T12N, R5E, UM
Dear Mr. Brillon:
Enclosed is the approved application for the permit to drill the above referenced well.
Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for all well
logs run must be submitted to the AOGCC within 90 days after completion, suspension, or
abandonment of this well, or within 90 days of acquisition of the data, whichever occurs first.
This permit to drill does not exempt you from obtaining additional permits or an approval required
by law from other governmental agencies and does not authorize conducting drilling operations
until all other required permits and approvals have been issued. In addition, the AOGCC reserves
the right to withdraw the permit in the event it was erroneously issued.
Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska
Administrative Code unless the AOGCC specifically authorizes a variance. Failure to comply
with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code,
or an AOGCC order, or the terms and conditions of this permit may result in the revocation or
suspension of the permit.
Sincerely,
Jessie L. Chmielowski
Commissioner
DATED this 7th day of January 2026.
1a. Type of Work: 1b. Proposed Well Class: Exploratory - Gas Service - WAG Service - Disp 1c. Specify if well is proposed for:
Drill Lateral Stratigraphic Test Development - Oil Service - Winj Single Zone Coalbed Gas Gas Hydrates
Redrill Reentry Exploratory - Oil Development - Gas Service - Supply Multiple Zone Geothermal Shale Gas
2. Operator Name: 5. Bond: Blanket Single Well 11. Well Name and Number:
Bond No.
3. Address: 6. Proposed Depth: 12. Field/Pool(s):
MD: 11,933 TVD: 10019
4a. Location of Well (Governmental Section): 7. Property Designation:
Surface:
Top of Productive Horizon: 8. DNR Approval Number: 13. Approximate Spud Date:
Total Depth: 9. Acres in Property: 14. Distance to Nearest Property:
4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL (ft): 58.5 15. Distance to Nearest Well Open
Surface: x- 385674 y- 5975579 Zone- 4 19.5 to Same Pool: 1042' to CD1-01
16. Deviated wells: Kickoff depth: 2728 feet 17. Maximum Potential Pressures in psig (see 20 AAC 25.035)
Maximum Hole Angle: 57 degrees Downhole: Surface:
Hole Casing Weight Grade Coupling Length MD TVD MD TVD
10-5/8 x 11-
3/4 9-5/8" 47# T95 H523 500 2523 2248 3023 2523
10-5/8 x 11-
3/4 9-5/8" 47# L80 H523 4949 3023 2523 7972 6639
8-1/2" x 9-7/8" 7" 29# P110-S H563 2251 7822 6510 10223 8561
6" 4-1/2" 12.6# P110-S H563 1710 10073 8433 11933 10019
19.PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re-Entry Operations)
Junk (measured):
TVD
114
2327.5
6828
7001
6974
Hydraulic Fracture planned? Yes No
20. Attachments: Property Plat BOP Sketch Drilling Program Time v. Depth Plot Shallow Hazard Analysis
Diverter Sketch Seabed Report Drilling Fluid Program 20 AAC 25.050 requirements
Contact Name:
Justin Cremer Contact Email:abby.warren@cop.com
Wells Engineering Manager Contact Phone: 907-240-9293
Date:
Permit to Drill API Number: Permit Approval
Number: Date:
Conditions of approval :
Samples req'd: Yes No Mud log req'd: Yes No
H2S measures: Yes No Directional svy req'd: Yes No
Spacing exception req'd: Yes No Inclination-only svy req'd: Yes No
Post initial injection MIT req'd: Yes No
APPROVED BY
Approved by: COMMISSIONER THE COMMISSION Date:
Comm. Comm. Sr Pet Eng Sr Pet Geo Sr Res Eng
Colville River
Undefined Waste Disposal
1/20/2025
4992' to ADL025559
170 sx of 15.3 ppg Class G + Adds
331 sx of 13.0 ppg extended class G + 136 sx
of 15.3 ppg Class G + Adds
819 sx of 11.0 ppg Crete Lead + 141 sx of
15.3 ppg Class G + Add's
3947
If checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales:
21. I hereby certify that the foregoing is true and the procedure approved herein will not be
deviated from without prior written approval.
Authorized Name:
Authorized Title:
Authorized Signature:
Abby Warren
Commission Use Only
See cover letter for other
requirements.
Perforation Depth MD (ft): Perforation Depth TVD (ft):
11,413.00
Liner 2,827 4.5 14090
Intermediate 2 807 7
Intermediate 1 8,233 9.625
114
Surface 2,670 11.75 715 sx of 10.7ppg lead + 302.6 sx of 15.8
Class G
2673
Conductor/Structural 114 16
10756
14090 6974
Casing Length Size Cement Volume MD
Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effect. Depth MD (ft): Effect. Depth TVD (ft):
18. Casing Program: Specifications Top - Setting Depth - Bottom Cement Quantity, c.f. or sacks
(including stage data)
4949
P.O. Box 100360 Anchorage, Alaska, 99510-0360
4728 FSL, 3029 FEL, S5 T11N, R5E, UM ADL025559 / ADL025558
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
PERMIT TO DRILL
20 AAC 25.005
ConocoPhillips Alaska Inc 59-52-180 CD1-47A
4488 FSL, 4841 FEL, S32, T12N, R5E, UM
49933 FSL, 5040 FEL, S32, T12N, R5E, UM 2469 / 2459
GL / BF Elevation above MSL (ft):
ons of approval :
Samples req'd: Yes No Mud log req'd: Yes No
H2S measures: Yes No Directional svy req'd: Yes No
Spacing exception req'd: Yes No Inclination-only svy req'd: Yes No
Post initial injection MIT req'd: Yes No
If checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales:
See cover letter for other
requirements.
Permit Approval
Date:
API Number:to Drill
er:
Commission Use Only
Contact Name:
Justin Cremer Contact Email:abby.warren@cop.com
Wells Engineering Manager Contact Phone:907-240-9293
Date:
ereby certify that the foregoing is true and the procedure approved herein will not be
ed from without prior written approval.
zed Name:
zed Title:
zed Signature:
Abby Warren
tachments: Property Plat BOP Sketch Drhhilling Program Time v. Depth Plot Shallow Hazard Analysis
Diverter Sketchh Seabed Report Drilling Fluid Program 20 AAC 25.050 requirements
lic Fracture planned?Yes No
Perforation Depth TVD (ft):ation Depth MD (ft):
6974140904.52,827Liner
700111,413.007807ntermediate 2
68289.6258,233ntermediate 1 10756
2327.52,670Surface 11.75 715 sx of 10.7ppg lead + 302.6 sx of 15.8
Class G
2673
114114nductor/Structural 114 16
TVDCasingLengthSizeCement Volume MD
Junk (measured):
14090 6974
al Depth MD (ft): Total Depth TVD (ft): Plugs (measured):Effect. Depth MD (ft):Effect. Depth TVD (ft):
PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re-Entry Operations)Y
170 sx of 15.3 ppg Class G + Adds10019119338433100731710H563P110-S12.6#4-1/2"6"
331 sx of 13.0 ppg extended class G + 136 sx
of 15.3 ppg Class G + Adds856110223651078222251H563P110-S29#7"x 9-7/8"
819 sx of 11.0 ppg Crete Lead + 141 sx of
15.3 ppg Class G + Add's66397972252330234949H523L8047#9-5/8"8 x 11-
/4
2523302322482523500H523T9547#9-5/8"8 x 11-
/4
TVDMDTVDMDLengthCouplingGradeWeightCasingole (including stage data)
sing Program:Specifications Top - Setting Depth - Bottom Cement Quantity, c.f. or sacks
17. Maximum Potential Pressures in psig (see 20 AAC 25.035)
Downhole: Surface:3947
viated wells: Kickoff depth: 2728 feet
Maximum Hole Angle: 57 degrees
15. Distance to Nearest Well Open
to Same Pool: 1042' to CD1-01
10. KB Elevation above MSL (ft):58.5
19.5
cation of Well (State Base Plane Coordinates - NAD 27):
e: x- 385674 y- 5975579 Zone- 4
14. Distance to Nearest Property:
4992' to ADL025559
7. Property Designation:
8. DNR Approval Number:
9. Acres in Property:
cation of Well (Governmental Section):
e:
Productive Horizon:
Depth:
13. Approximate Spud Date:
1/20/2025
12. Field/Pool(s):
Colville River
Undefined Waste Disposal
6. Proposed Depth:
MD: 11,933 TVD: 10019
ress:
11. Well Name and Number:rator Name:5. Bond: Blanket Single Well
Bond No.
1c.Specify if well is proposed for:
Coalbed Gas Gas Hydrates
Geothermal Shale Gas
1b. Proposed Well Class: Exploratory - Gas Service - WAG Service - Disp
Stratigraphic Test Development - Oil Service - Winj Single Zone
Exploratory - Oil Development - Gas Service - Supply Multiple Zone
pe of Work:
Lateral
Reentry
4949
ox 100360 Anchorage, Alaska, 99510-0360
4728 FSL, 3029 FEL, S5 T11N, R5E, UM ADL025559 / ADL025558
oPhillips Alaska Inc 59-52-180 CD1-47A
4488 FSL, 4841 FEL, S32, T12N, R5E,UM
49933 FSL, 5040 FEL,S32, T12N, R5E, UM 2469 / 2459
GL / BF El ti b MSL (ft)
Form 10-401 Revised 3/2021 This permit is valid for 24 months from the date of approval per 20 AAC 25.005(g)
225-138
By Grace Christianson at 11:12 am, Dec 19, 2025
4,993 FSL SFD
Class I disposal operations to be in accordance with EPA issued permit.
~4,300' in CD1-01A SFD
CBL logs and interpretation to be submitted to the AOGCC asap before proceeding for 9-5/8" and 7"..
BOP test pressure to 4200 psi; Annular preventer test to 2500 psi.
X
VTL 1/7/2026
50-103-20659-01-00
Class I - EPA CDW 12/22/2025
DSR-12/19/25SFD 1/6/2026
A variance for packer depth under 20 AAC 25.412(b) is granted to allow
packer to be placed up to ~300' above the Int2 shoe depth and in the confining zone.
CDW 12/22/2025
SFD
01/07/26
01/07/26
ConocoPhillips Alaska, Inc.
Post Office Box 100360
Anchorage, Alaska 99510-0360
Telephone 907-276-1215
December 18th, 2025
Alaska Oil and Gas Conservation Commission
333 West 7th Avenue, Suite 100
Anchorage, Alaska 99501
Re: Application for Permit to Re-Enter and Re-Drill CD1-47 / CD1-47A
Dear Sir or Madam:
ConocoPhillips Alaska, Inc. hereby applies for a permit to re-enter and sidetrack the CD1-47 producer well from the CD1 drilling
pad. This well, originally drilled in November 2012, has been shut-in for reservoir pressure management since December 2021. The
intended rig acceptance for this well is January 20th, 2026 using Doyon Rig 142, estimated spud for the sidetrack is February 9th,
2025.
In a Sundry request currently being submitted, prior to Doyon 142 rig move onto CD1-47, pre-rig work will include spotting P&A
cement plug, testing tubing and IA integrity, and cutting 4-1/2 tubing.
When Doyon 142 rig moves onto CD1-47 well, the proposed plan is to de-complete the well and set a CIBP, perforate and cement the
Halo formations, set a second CIBP, test, then mill the 9-5/8 x 11-3/4 LTP, cut and pull the 9-5/8 liner below the surface casing
shoe, then set a 16 ppg kickoff plug below and into the surface casing shoe.
With this permit to drill, the Doyon 142 will re-drill with a four-string design. A 10-5/8 x 11-3/4 intermediate 1 section to +/- 7972
MD, case the hole with 9-5/8 liner and cement. A 9-5/8 tieback will then be run. For intermediate 2 an 8-1/2 x 9-7/8 hole will be
drilled to TD and a 7 liner run and cemented. A 7 tieback will be run to surface. Then, the rig will drill a 6 production section to
TD at 11,933 MD, and case the hole with 4-1/2 15.2# liner and cement. CD1-47A be completed as an unstimulated Waste Disposal
service well, along with 4-1/2 tubing with production packer tied back to surface. The liner will be perforated post well.
The upper completion of 4-1/2 tubing will be run and set in place using an injection packer in the 7 intermediate tieback. A variance
for the packer depth for injection wells under AOGCC 20 AAC 25.412 (b) will also be requested so that it may be located greater than
200 feet measured depth from above the top of the perforations, but shall not be located above the confining zone, and shall have
outer casing cement volume sufficient to place cement a minimum of 300 feet measured depth above the planned packer depth. The
confining zone for the injection interval is the Kingak formation which is ~1600 ft thick.
Please find attached the information required by 20 ACC 25.005 (a) and (c) for your review. Pertinent information
attached to this application includes the following:
1. Form 10-401 APPLICATION FOR Permit to Drill per 20 ACC 25.005 (a)
2.A proposed drilling program
3. A proposed completion diagram
4. A drilling fluids program summary
5. Pressure information as required by 20 ACC 25.035 (d)(2)
6. Directional drilling / collision avoidance information as required by 20 ACC 25.050 (b)
Information pertinent to the application that is presently on file at the AOGCC:
1.Diagrams of the BOP equipment, diverter equipment and choke manifold lay out as required by 20 ACC
25.035 (a) and (b).
2.A description of the drilling fluids handling system.
3.Diagram of riser set up.
If you have any questions or require further information, please contact Abby Warren at 907-240-9293
(abby.warren@conocophillips.com) or Chris Brillon at 907-265-6120.
Sincerely, cc:
CD1-47A Well File / Jenna Taylor ATO 1560
Will Earhart ATO 1552
Abby Warren Justin Cremer ATO 1548
Drilling Engineer Andy Mack Kuukpik Corp
, g p
CD1-47A be completed as an unstimulated Waste Disposal, ,
service well, along with 4-1/2 tubing with production packer tied back to surface.
A variance pp p g p g j p
for the packer depth for injection wells under AOGCC 20 AAC 25.412 (b) will also be requested so that it may be located greater thanrp p j () q y g
200 feet measured depth from above the top of the perforations, but shall not be located above the confining zone, and shall have aap p p ,g ,
outer casing cement volume sufficient to place cement a minimum of 300 feet measured depth above the planned packer depth.
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 1 | 12
CD1-47A Well Plan
Application for Permit to Drill
Table of Contents
1. Well Name................................................................................................................................................2
2. Location Summary ....................................................................................................................................2
3. Proposed Drilling Program........................................................................................................................4
4. BOP and Diverter Information...................................................................................................................5
5. MASP Calculations ....................................................................................................................................5
6.Procedure for Conducting Formation Integrity Tests.................................................................................6
7. Casing and Cementing Program.................................................................................................................6
8. Drilling Fluid Program................................................................................................................................8
9.Abnormally Pressured Formation Information..........................................................................................9
10. Seismic Analysis........................................................................................................................................9
11. Seabed Condition Analysis........................................................................................................................9
12. Evidence of Bonding..................................................................................................................................9
13.Discussion of Mud and Cuttings Disposal and Annular Disposal................................................................9
14. Drilling Hazards Summary.......................................................................................................................10
15. Proposed Completion Schematic.............................................................................................................12
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 2 | 12
1. Well Name
Requirements of 20 AAC 25.005 (f)
The well for which this application is submitted will be designated as CD1-47A
2. Location Summary
Requirements of 20 AAC 25.005(c)(2)
Location at Surface 4728' FSL, 3029' FEL, S5 T11N R5E, UM
NAD27
Northings: 5975580
Eastings: 385675
RKB Elevation 58.5 AMSL
Pad Elevation 15.5 AMSL
Top of Productive Horizon (Heel) 4488' FSL, 4841' FEL , S32 T12N R5E, UM
NAD27
Northings: 5980647
Eastings: 383924
Measured Depth, RKB: 10,894 MD
True Vertical Depth, RKB: 9,133 TVD
True Vertical Depth, SS: 9,075 TVDss
Total Depth (Toe) 4993' FSL, 5040' FEL, S32 T12N R5E, UM
NAD27
Northings: 5981155
Eastings: 383731
Measured Depth, RKB: 11,933
True Vertical Depth, RKB: 10,019
True Vertical Depth, SS: 9,960
Pad Layout
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 3 | 12
Well Plat
No other wells intersect the planned disposal
interval within a 1/2-mile radius. SFD
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 4 | 12
3. Proposed Drilling Program
Requirements of 20 AAC 25.005(c)(13)
1. RIH to 16 ppg cement kick off plug. Sidetrack below existing surface casing shoe with 10-5/8 drilling BHA. (LWD Program:
GR, RES, DEN, NEU, Sonic)
2. Drill 20 of new hole. Perform FIT/LOT. Minimum LOT required to drill ahead is 10.4 ppg EMW.
3. Drill 10-5/8 x 11-3/4hole to section TD utilizing an underreamer. Circulate clean and POOH.
4. Change upper VBRs to 9-5/8" solid body rams. Test BOPE to 250/4,000 psi. (24-48 hr. regulatory notice).
5. Run 9-5/8 liner and cement to the top of the liner (a minimum of 250 TVD or 500 MD above any hydrocarbon bearing
zones). Pressure test casing if possible on plug bump to 4000 psi.
6. Run 9-5/8 tieback to surface. Pressure test backside to 2500 psi to confirm seals
7. RU wireline to run CBL. Log 9-5/8 cement quality
8. Change upper 9-5/8" solid body rams to 4-1/2 x 7 VBRs. Test BOPE to 250/4,000 psi. (24-48 hr. regulatory notice).
9. RIH with 8-1/2 BHA (LWD Program: GR, RES, DEN, NEU). Drill 20 of new hole, perform FIT/LOT. Minimum LOT required to
drill ahead is 11.3 ppg EMW
10. Drill 8-1/2 x 9-7/8 hole to section utilizing an underreamer TD (LWD Program: GR/RES/Den/Neu/Sonic). Circulate clean
and POOH
11. Run 7 liner and cement to top of liner. If possible pressure test to 4600 psi. Set liner top packer.
12. Run 7 tieback to surface. Pressure test back side to 4000 psi
13. RU wireline to run CBL. Log 7 cement quality
14. Pick up and RIH with 6 drilling assembly.
15. Drill out shoe track and 20 feet of new formation. Perform FIT. Minimum acceptable initial leak-off for drilling ahead is 10.5
ppg EMW.
16. Drill 6" hole to section TD (LWD Program: GR/RES/Den/Neu/Sonic).
17. Circulate the hole clean and POOH.
18. Run 4-1/2 liner to TD, pressure test to 4600 psi on plug bump if possible and set liner hanger.
19. Cement 4-1/2 liner from TD to liner top. Set liner top packer. POOH LD DP.
20. RU to run upper completion.
21. Run 4-1/2 upper completion with production packer, downhole gauge, and gas lift mandrels. Space out and land tubing
hanger.
22. Pressure test hanger seals to 5,000 psi.
23. Pressure test tubing to 4,600 psi, chart test.
24. Bleed tubing pressure to 2200 psi and test IA to 4,600 psi, chart test. Shear out SOV
25. Install HP-BPV and test to 1500 psi.
26. Nipple down BOP.
27. Install tubing head adapter assembly. N/U tree and test.
28. Freeze protect down tubing and annulus.
29. Secure well. Rig down and move out.
Per attached email dated 1/6/2026, CPAI
Logs and interpretation to AOGCC asap before drilling ahead.4200
Logs and interpretation to AOGCC asap before drilling ahead.
4200
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 5 | 12
4. BOP and Diverter Information
Requirements of 20 AAC 25.005(c)(3 & 7)
Please reference BOP and diverter schematics on file for Doyon 142
5. MASP Calculations
Requirements of 20 AAC 25.005(c)(4)
(A) maximum downhole pressure and maximum potential surface pressure;
Maximum Potential Surface Pressure (MPSP) is determined as the lesser of:
Method 1: surface pressure at breakdown of the formation casing seat with a gas gradient to the surface
Method 2: formation pore pressure at the next casing point less a gas gradient to the surface
Method 1 Method 2
= [( × 0.052
) ] × =
( ) ×
Where:
FG Fracture gradient at the casing seat in lb/gal
0.052 Conversion from lb/gal to psi/ft
Gas Gradient 0.1 psi/ft
TVD True Vertical Depth of casing seat in ft RKB
Where:
FPP Formation Pore Pressure at the next casing point
Gas Gradient 0.1 psi/ft
The following presents data used for calculation of Maximum Potential Surface Pressure (MPSP) while
drilling:
Section Hole Size
Previous CSG Section TD MPSP
psi
MPSP MPSP
Size MD TVD FG
ppg
Pore Pressure
ppg | psi MD TVD Pore Pressure
ppg | psi
Method 1
psi
Method 2
psi
INT1 10-5/8 x 11-3/4 11.75" 2673 2323 15 8.5 1,027 7972 6639 9 3,107 1,580 1,580 2,443
INT2 8-1/2 x 9-7/8" 9-5/8" 7972 6639 11.5 9 3,107 10287 8616 10.7 4,794 3,306 3,306 3,932
PROD 6" 7" 10287 8616 12.5 10.7 4,794 11932 10019 9.5 4,949 3,947 4,739 3,947
(B) data on potential gas zones;
The planned wellbore is not expected to penetrate any shallow gas zones.
(C) data concerning potential causes of hole problems such as abnormally geo-pressured strata, lost
circulation zones, and zones that have a propensity for differential sticking;
Please see Drilling Hazards Summary
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 6 | 12
6.Procedure for Conducting Formation Integrity Tests
Requirements of 20 AAC 25.005 (c)(5)
Drill out casing shoe and perform LOT test or FIT in accordance with the LOT/FIT procedure that
ConocoPhillips Alaska has on file with the Commission.
7. Casing and Cementing Program
Requirements of 20 AAC 25.005 (c)(6)
Casing and Cementing Program
OD
(in)
Hole Size
(in)
Weight
(lb/ft) Grade Conn. Cement Program
16 34 94 H40 Welded Existing: Drilled
11-3/4" 14" 60# L80 BTC-M Existing: Cement to Surface
9-5/8 10-5/8 x
11-3/4
47#
47#
T-95
L-80
H523
H523 Cemented liner to inside the 11-3/4 surface casing
9-5/8 47# L-80 H523 Uncemented Tieback to surface
7" 8-1/2 x 9-
7/8" 29# P110S H563 Cemented liner to inside the 9-5/8 liner
7 29# P110S H563 Uncemented tieback to surface
4-1/2" 6" 15.2# P110-S H563 Cemented liner to inside the 7 liner
4-1/2 15.2# P-110SS H563 Uncemented tubing to surface
The upper completion of 4-1/2 tubing will be run and set in place using an injection packer in the 7
intermediate tieback. A variance for the packer depth for injection wells under AOGCC 20 AAC 25.412 (b)
will also be requested so that it may be located greater than 200 feet measured depth from above the top
of the perforations, but shall not be located above the confining zone, and shall have outer casing cement
volume sufficient to place cement a minimum of 300 feet measured depth above the planned packer
depth. The confining zone for the injection interval is the Kingak formation which is ~1600 ft thick.
Recommend approval of variance requested. Packer placement and cement should provide equivalent isolation of disposal fluid
to authorized disposal zone. CPAI responsible to ensure compliance with EPA issued Class I disposal permit. CDW 12/22/2025.
A variance for the packer depth for injection wells under AOGCC 20 AAC 25.412 (b)
will also be requested so that it may be located greater than 200 feet measured depth from above the top
of the perforations, but shall not be located above the confining zone, and shall have outer casing cement
volume sufficient to place cement a minimum of 300 feet measured depth above the planned packer
depth. The confining zone for the injection interval is the Kingak formation which is ~1600 ft thick.
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 7 | 12
9-5/8" Intermediate 1 liner run to 7972' MD/ 6639' TVD Cement Plan:
Cement from 7972 MD to 7472 (500 of tail) with Class G + Adds @ 15.3 ppg, and from 7472' to liner top
with 11.0 ppg CRETE. Assuming 30% excess.
*Minimum depth required is TOC at 3263 MD (500 above the top hydrocarbon bearing zone).
Lead 279 bbls => 819 sx of 11.0 ppg DeepCRETE + Add's @ 1.91 ft³/sk
Tail 31.4 bbls => 141 sx of 15.3 ppg Class G + Add's @ 1.25 ft³/sk
7" Intermediate 2 liner run to 10287' MD/ 8616' TVD Cement Plan:
Cement from 10287 MD to 9787 (500 of tail) with Class G + Adds @ 15.3 ppg, and from 9787' to liner
top with 13 ppg extended G. Assuming 30% excess.
Lead 112 bbls => 331 sx of 13.0 ppg DeepCRETE + Add's @ 1.90 ft³/sk
Tail 30.3 bbls => 136 sx of 15.3 ppg Class G + Add's @ 1.25 ft³/sk
4-1/2" Production Liner run to 11932' MD/ 10019' TVD Cement Plan:
Primary cement job consists of a 15.3 ppg slurry designed to be from TD at 11932' MD to top of liner with
30% excess.
Tail 38 bbls => 170 sx of 15.3 ppg Class G + Add's + Add's @ 1.25 ft³/sk
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 8 | 12
8. Drilling Fluid Program
(Requirements of 20 AAC 25.005(c)(8))
Intermediate 1 Intermediate 2 Production
Hole Size in 10-5/8" x 11-3/4 8-1/2 x 9-7/8" 6"
Casing Size in 9-5/8" 7 4-1/2"
Density ppg 9.8-11.3 ppg 10.5-11.5 ppg 9.0-10.5 ppg
LSYP lb./100 ft2 8-11 8-11 5-8
YP lb./100 ft2 20-30 20-30 20-30
Initial Gels lb./100 ft2 10-15 10-15 6-10
10 Minute Gels lb./100 ft2 <20 <20 <20
API Fluid Loss cc/30 min <10 to Qannik
<6.0 from Qannik to HRZ <6.0 <6.0
HPHT Fluid Loss cc/30 min <10 from HRZ to TD <10 <10
pH 9.5-10 9.5 10.0 9.5-10.0
Oil/Water Ratio N/A N/A N/A
Intermediate 1:
WBM system will be used. Ensure good hole cleaning by pumping regular sweeps and maximizing fluid
annular velocity. Maintain mud weight from 9.8-11.3 ppg and be prepared to add loss circulations
materials as needed. Weight up as necessary for the shales
Intermediate 2:
WBM system will be used. Ensure good hole cleaning by pumping regular sweeps and maximizing fluid
annular velocity. Maintain mud weight from 10.5-11.5 ppg and be prepared to add loss circulations
materials as needed. Weight up as necessary for the shales
Production Hole:
The production interval will be drilled with WBM system weighted to 9.0-10.5 ppg. MPD will be available
for adding backpressure during connections if necessary.
Diagram of Doyon 142 Mud System on file. Drilling fluid practices will be in accordance with appropriate
regulations stated in 20 AAC 25.033.
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 9 | 12
9. Abnormally Pressured Formation Information
Requirements of 20 AAC 25.005 (c)(9)
N/A - Application is not for an exploratory or stratigraphic test well.
10. Seismic Analysis
Requirements of 20 AAC 25.005 (c)(10)
N/A - Application is not for an exploratory or stratigraphic test well.
11. Seabed Condition Analysis
Requirements of 20 AAC 25.005 (c)(11)
N/A - Application is not for an offshore well.
12. Evidence of Bonding
Requirements of 20 AAC 25.005 (c)(12)
Evidence of bonding for ConocoPhillips Alaska, Inc. is on file with the Commission.
13. Discussion of Mud and Cuttings Disposal and Annular Disposal
Requirements of 20 AAC 25.005 (c)(14)
Incidental fluids developed from drilling operations on well CD1-47A will be injected into the Class 1
disposal well on CD1.
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 10 | 12
14. Drilling Hazards Summary
10-5/8" x 11-3/4 Hole | 9-5/8" Casing Interval
Event Risk Level Mitigation Strategy
Hole Swabbing on trips Medium Reduce trip speeds, condition mud properties, proper hole filling, pump out of hole, real
time ECD monitoring, MPD stripping practices
Well Collision Low Travelling cylinder diagrams
Abnormal Pressure Low Increased mud weight.
Lost Circulation Medium Reduce pump rates, mud rheology, add lost circulation material, use of low density
cement slurries, control pipe running speeds
Sloughing shale / tight hole Medium MPD for shale stability, Increase mud weight, control ROP, connection and trip speeds,
sweeps, and real time equivalent circulating density (ECD) monitoring, run casing as liner
8-1/2 x 9-7/8" Hole | 7" Casing Interval
Event Risk Level Mitigation Strategy
Lost circulation Low Reduce pump rates, reduce trip speeds, real time ECD monitoring, mud rheology, add
lost circulation material
Hole swabbing on trips Medium Reduce trip speeds, condition mud properties, proper hole filling, pump out of hole, real
time ECD monitoring, MPD stripping practices
Abnormal Pressure in
Overburden Formations Low Well control drills, check for flow during connections, increase mud weight. Shallow
hazard study noted minimal risk
Hole Cleaning Medium MPD for shale stability, Increase mud weight, control ROP, connection and trip speeds,
sweeps, and real time equivalent circulating density (ECD) monitoring, run casing as liner
6" Hole | 4-1/2" Liner - Production Hole
Event Risk Level Mitigation Strategy
Lost circulation Low Reduce pump rates, reduce trip speeds, real time ECD monitoring, mud rheology, add
lost circulation material
Hole swabbing on trips Medium Reduce trip speeds, condition mud properties, proper hole filling, pump out of hole, real
time ECD monitoring
Abnormal Reservoir Pressure Low Well control drills, check for flow during connections, increased mud weight
Differential Sticking Low Uniform reservoir pressure along lateral, keep pipe moving, control mud weight
Hydrogen Sulfide gas Low H2S drills, detection systems, alarms, standard well control practices, mud scavengers
To be posted in Rig Floor Doghouse Prior to Spud
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 11 | 12
Well Proximity Risks:
CD1 is a multi-well pad. Directional drilling / collision avoidance information as required by AOGCC 20
ACC 25.050 (b) is provided in the following attachments.
Drilling Area Risks:
Reservoir Pressure:
Offset injection has the potential to increase reservoir pressure in the Alpine C over predicted.
The rig will be prepared to weight up if required.
Weak sand stringers could be present in the overburden. LCM material will be available to seal in
losses in the intermediate sections.
Lost Circulation:
Standard LCM material and well bore strengthening pills are expected to be effective in dealing
with lost circulation if needed.
Swabbed Kicks
Good drilling practices will be stressed to minimize the potential of taking swabbed kicks.
CD1-47A AOGCC 10-401 APD
12/18/2025
CD1-47A AOGCC 10-401 APD 12 | 12
15.Proposed Completion Schematic
Class I CDW
12/22/2025
3,765' ? See proposed
directional survey. SFD
CD1-47A wp04.3 Plan Summary
0
3
3000 4500 6000 7500 9000 10500 12000
Measured Depth
11-3/4" Surface Casing
9-5/8" Intermediate Casing
7" Intermediate Casing
4-1/2" Production Liner
30.0
30.0
60.0
60.0
0
90
180
270
30
210
60
240 120
300
150
330
Travelling Cylinder Azimuth (TFO+AZI) [°] vs Travelling Cylinder Separation [60 usft/in]
2802290230023102
3201
3300
3398
3495
CD1-47
2802290230023102
3201
3300
3398
3495
0
7500
0 1750 3500 5250 7000 8750 10500 12250
Vertical Section at 339.90°
11-3/4" Surface Casing
9-5/8" Intermediate Casing
7" Intermediate Casing 4-1/2" Production Liner
0
18
35
Centre to Centre Separation2800 2975 3150 3325 3500 3675 3850 4025
Measured Depth
Equivalent Magnetic Distance
DDI
6.015
SURVEY PROGRAM
Date: 2022-05-24T00:00:00 Validated: Yes Version:
Depth From Depth To Survey/Plan Tool
116.22 822.22 CD1-47PB1 Gyro (CD1-47PB1) GYD-GC-SS
858.22 2728.29 CD1-47PB1 (CD1-47PB1) MWD+IFR2+SAG+MS
2728.29 2775.00 CD1-47A wp04.3 (CD1-47A) MWD+IFR2+SAG+MS
2775.00 3350.00 CD1-47A wp04.3 (CD1-47A) MWD-INC_ONLY (INC>10°)
3350.00 7970.00 CD1-47A wp04.3 (CD1-47A) r.5 MWD+IFR2+SAG+MS
7970.00 10280.00 CD1-47A wp04.3 (CD1-47A) r.5 MWD+IFR2+SAG+MS
10280.00 11932.66 CD1-47A wp04.3 (CD1-47A) r.5 MWD+IFR2+SAG+MS
Ground / 19.50
CASING DETAILS
TVD MD Name
6639.54 7972.00 9-5/8" Intermediate Casing
8616.12 10287.00 7" Intermediate Casing
10018.73 11932.66 4-1/2" Production Liner
Mag Model & Date: BGGM2025 10-Feb-26
Magnetic North is 13.13° East of True North (Magnetic Declinatio
Mag Dip & Field Strength: 80.52° 57057.96nT
SECTION DETAILS
Sec MD Inc Azi TVD +N/-S +E/-W Dleg TFace VSect Target Annotation
1 2728.29 57.38 331.12 2356.94 801.60 -485.86 0.00 0.00 919.76 Start DLS 0.83 TFO -169.38
2 2775.00 57.00 331.04 2382.25 835.96 -504.85 0.83 -169.38 958.55 Start DLS 1.50 TFO 165.00
3 2975.00 54.11 331.99 2495.37 980.90 -583.52 1.50 165.00 1121.70 Start DLS 2.00 TFO 161.31
4 4263.62 30.50 347.93 3444.33 1774.96 -902.40 2.00 161.31 1976.98 Start 3905.41 hold at 4263.62 MD
5 8169.04 30.50 347.93 6809.31 3713.35 -1316.92 0.00 0.00 3939.75 Start DLS 1.50 TFO -80.93
6 8340.28 31.00 343.00 6956.50 3798.03 -1338.90 1.50 -80.93 4026.83 CD1-47A Flt Tgt Start DLS 1.50 TFO -79.53
7 8505.89 31.54 338.33 7098.08 3879.08 -1367.37 1.50 -79.53 4112.73 Start 3326.77 hold at 8505.89 MD
811832.66 31.54 338.33 9933.50 5496.11 -2010.02 0.00 0.00 5852.12 WD-05 T1 N Op 1 - 022425 Start 100.00 hold at 11832.66 MD
911932.66 31.54 338.33 10018.73 5544.71 -2029.34 0.00 0.00 5904.41 TD at 11932.66
FORMATION TOP DETAILS
TVDPath Formation
2412.50 C30
2763.50 C20
3035.50 C10 (Halo)
4032.50 K2
6600.50 Top HRZ
6856.50 LCU
6943.50 Alpine C
7001.50 UJU
7344.50 Nechelik (LTB)
8650.50 Sag River
8688.50 Shublik
9133.50 Ivishak
9834.50 Kavik
By signing this I acknowledge that I have been informed of all risks, checked that the data is correct, ensured it's completeness, and all surroundingwells are assigned to the proper position, and I approve the scan and collision avoidance plan as set out in the audit pack.I approve it as the basiis
for the final well plan and wellsite drawings. I also acknowledge that unless notified otherwise all targets have a 100 feet lateral tolerance.
Prepared by Checked by Accepted by Approved by
Plan 39+19.5 @ 58.50usft (D142)
0200040006000800010000True Vertical Depth-2000 0 2000 4000 6000 8000 10000 12000Vertical Section at 339.90°11-3/4" Surface Casing7" Intermediate Casing4-1/2" Production LinerC D 1 -4 7
9-5/8" Intermediate Casing16" Conductor Casing9-5/8" Intermediate Casing7" Intermediate Casing4-1/2" Production Liner200030000°C30C20C10 (Halo)K2Top HRZLCUAlpine CUJUNechelik (LTB)Sag RiverShublikIvishakKavikCD1-47A wp04.39:13, October 15 2025Section View
02000400060008000South(-)/North(+)-8000 -6000 -4000 -2000 0 2000 4000West(-)/East(+)CD1-47A Flt TgtWD-05 T1 N Op 1 - 0224253000350040004500550060006500300035004000450055006000650011-3/4" Surface Casing9-5/8" Intermediate Casing7" Intermediate Casing4-1/2" Production Liner25003000750080008500900095001000010019CD1-47A wp04.3CD1-47A wp04.3While drilling production section, stay within 100 feet laterally of plan, unless notified otherwise.9:14, October 15 2025
Per attached email dated 1/6/2026, CPAI
0.000.501.001.502.002.503.003.504.004.505.005.50Separation Factor2925 3250 3575 3900 4225 4550 4875 5200 5525 5850 6175 6500 6825 7150 7475 7800 8125 8450 8775Measured Depth (650 usft/in)CD1-01CD1-21CD1-30 CD1-35CD1-47STOP DrillingTake Immediate ActionCaution Monitor CloselyNormal OperationsProject: Western North SlopeSite: CD1 Alpine PadWell: CD1-47Wellbore: Plan: CD1-47ADesign: CD1-47A wp04.
0
30
60
Centre to Centre Separation2750 3000 3250 3500 3750 4000
Partial Measured Depth
Equivalent Magnetic Distance
CD1-47A wp04.3 Ladder View
0
150
300
Centre to Centre Separation2700 3600 4500 5400 6300 7200 8100 9000
Measured Depth
Equivalent Magnetic Distance
SURVEY PROGRAM
Depth From Depth To Survey/Plan Tool
116.22 822.22 CD1-47PB1 Gyro (CD1-47PB1) GYD-GC-SS
858.22 2728.29 CD1-47PB1 (CD1-47PB1) MWD+IFR2+SAG+MS
2728.29 2775.00 CD1-47A wp04.3 (CD1-47A) MWD+IFR2+SAG+MS
2775.00 3350.00 CD1-47A wp04.3 (CD1-47A) MWD-INC_ONLY (INC>10°)
3350.00 7970.00 CD1-47A wp04.3 (CD1-47A) r.5 MWD+IFR2+SAG+MS
7970.0010280.00 CD1-47A wp04.3 (CD1-47A) r.5 MWD+IFR2+SAG+MS
10280.0011932.66 CD1-47A wp04.3 (CD1-47A) r.5 MWD+IFR2+SAG+MS
9:40, October 15 2025
CASING DETAILS
TVD MD Name
5316.75 7972.00 9-5/8" Intermediate Casing
6605.85 10287.00 7" Intermediate Casing
6983.82 11932.66 4-1/2" Production Liner
CD1-47A wp04.3 TC View
30
30
60
60
90
90
120
120
150
150
0
90
180
270
30
210
60
240 120
300
150
330
Travelling Cylinder Azimuth (TFO+AZI) [°] vs Travelling Cylinder Separation [60 usft/in]
2762
2807
2852
2897
2942
2988
3033
3079
3125
3171
CD1-21
2762
2807
2852
2897
2942
2988
3033
3079
3125
3171
2762
2807
2852
2897
2942
2988
3033
3079
3125
3171
27522802285229022952300230523102315232013251330033493398
3446
3495
3543
3590
3638
3684
3731
3777
3822
3867
3911
CD1-47
27522802285229022952300230523102315232013251330033493398
3446
3495
3543
3590
3638
3684
3731
3777
3822
3867
3911
SURVEY PROGRAM
Date: 2022-05-24T00:00:00 Validated: Yes Version:
From To Tool
116.22 822.22 GYD-GC-SS
858.22 2728.29 MWD+IFR2+SAG+MS
2728.29 2775.00 MWD+IFR2+SAG+MS
2775.00 3350.00 MWD-INC_ONLY (INC>10°)
3350.00 7970.00 r.5 MWD+IFR2+SAG+MS
7970.00 10280.00 r.5 MWD+IFR2+SAG+MS
10280.00 11932.66 r.5 MWD+IFR2+SAG+MS
CASING DETAILS
TVD MD Name
5316.75 7972.00 9-5/8" Intermediate Casing
6605.85 10287.00 7" Intermediate Casing
6983.82 11932.66 4-1/2" Production Liner
SECTION DETAILS
Sec MD Inc Azi TVD +N/-S +E/-W Dleg TFace VSect Target Annotation
1 2728.29 57.38 331.12 2356.94 801.60 -485.86 0.00 0.00 919.76 Start DLS 0.83 TFO -169.38
2 2775.00 57.00 331.04 2382.25 835.96 -504.85 0.83 -169.38 958.55 Start DLS 1.50 TFO 165.00
3 2975.00 54.11 331.99 2495.37 980.90 -583.52 1.50 165.00 1121.70 Start DLS 2.00 TFO 161.31
4 4263.62 30.50 347.93 3444.33 1774.96 -902.40 2.00 161.31 1976.98 Start 3905.41 hold at 4263.62 MD
5 8169.04 30.50 347.93 6809.31 3713.35 -1316.92 0.00 0.00 3939.75 Start DLS 1.50 TFO -80.93
6 8340.28 31.00 343.00 6956.50 3798.03 -1338.90 1.50 -80.93 4026.83 CD1-47A Flt Tgt Start DLS 1.50 TFO -79.53
7 8505.89 31.54 338.33 7098.08 3879.08 -1367.37 1.50 -79.53 4112.73 Start 3326.77 hold at 8505.89 MD
811832.66 31.54 338.33 9933.50 5496.11 -2010.02 0.00 0.00 5852.12 WD-05 T1 N Op 1 - 022425 Start 100.00 hold at 11832.66 MD
911932.66 31.54 338.33 10018.73 5544.71 -2029.34 0.00 0.00 5904.41 TD at 11932.66
Northing (1500 usft/in)355759355759 373747
-150001500300045006000South(-)/North(+) (1500 usft/in)-7500 -6000 -4500 -3000 -1500 0 1500 3000 4500West(-)/East(+) (1500 usft/in)CD1-22CD1-22BCD1-22BPB1CD1-229CD1-23CD1-26PB1CD1-27CD1-28CD1-30CD1-30PB1CD1-32PB1C D 1 -3 3 A
C D 1 -3 6 P B 1 CD1-37CD1-38PB1CD1-39CD1-39PB1CD1-41C D 1 -4 1 P B 1
CD1-42CD1-43CD1-44C D 1 -4 4 P B 1CD1-46CD1-47CD1-47PB1CD1-48CD1-48ACD1-49WD-039934CD1-47A wp04.3CD1-47A wp04.3Quarter Mile View9:46, October 15 2025WELLBORE TARGET DETAILS (MAP CO-ORDINATES)Name TVD ShapeCD1-47A Flt Tgt 6956.50 Circle (Radius: 100.00)WD-05 T1 N Op 1 - 022425 9933.50 Circle (Radius: 100.00)WD-05 T1 QM 9933.50 Circle (Radius: 1320.00)
CD1-47A wp04.3 Surface Location
CD1-47A wp04.3 Surface Location
# Schlumberger-Confidential
CD1-47A wp04.3 Surface Casing
CD1-47A wp04.3 Surface Casing
# Schlumberger-Confidential
CD1-47A wp04.3 KOP Top Whipstock
CD1-47A wp04.3 KOP Top Whipstock
# Schlumberger-Confidential
CD1-47A wp04.3 Intermediate 1 Csg
CD1-47A wp04.3 Intermediate 1 Csg
# Schlumberger-Confidential
CD1-47A wp04.3 Intermediate 2 Csg
CD1-47A wp04.3 Intermediate 2 Csg
# Schlumberger-Confidential
CD1-47A wp04.3 Top Ivishak
CD1-47A wp04.3 Top Ivishak
# Schlumberger-Confidential
CD1-47A wp04.3 TD
CD1-47A wp04.3 TD
# Schlumberger-Confidential
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:Warren, Abby
To:Loepp, Victoria T (OGC); Drake, Steve G
Cc:Dewhurst, Andrew D (OGC)
Subject:RE: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill Questions
Date:Thursday, December 18, 2025 10:59:09 AM
Attachments:CD1-47 Pre Rig Abandonment.pdf
Victoria
Yes, we will be running a USIT (step #11) to evaluate the cement behind pipe on the 9-5/8 liner. The
original top of cement was estimated by cement calcs, as no log was run.
Top of Halo is 3913 MD/ 3034 TVD and the bottom is 4000 MD / 3081 TVD. It is poorly developed
in this area and is most likely a cemented stringer.
The likelihood of cutting and pulling from 400 is decent, if we cannot pull from 400 the contingency
would be to move up hole and recut. This is how most of our sidetracks below surface casings are
performed and Conoco has a high success rate at it with multiple cuts.
Current cement calc with pulling the casing 400 below SC and pumping the cement to 200 inside
casing would be ~64 bbls of 16.0 ppg cement.
In terms of the Gator perforator, we plan to run ~150 of 7 guns with 15spf. Flow area should be
more than sufficient to get a proper squeeze to achieve isolation of the Halo. Pipe should be free in
that area, as such Conoco does not believe there is any added benefit to perf and wash.
I have attached the prerig abandonment Schematic. One thing to note on the sundry, is that section
7 for Discussion of Mud and Cuttings Disposal should read - Incidental fluids developed from
drilling operations on well CD1-47A will be injected into the Class 1 disposal well on CD1.
Please let me know if you have any questions.
Thanks
Abby
From: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>
Sent: Wednesday, December 17, 2025 12:01 PM
To: Warren, Abby <Abby.Warren@conocophillips.com>; Drake, Steve G
<Steve.G.Drake@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>
Subject: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill
Questions
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.
Abby,
Is a CBL planned to verify the TOC above the Qannik? How was the TOC estimated? Please provide
log if logged.
Please provide top/bottom of Halo. Please provide information on Halo development in this well.
Have you considered Gator perforations across the Halo and potential perf and wash before
cementing?
How likely is it that the 9-5/8 casing can be cut and pulled from ~400 below the SC shoe?
I dont see any cement calculations or height of cement on the SC shoe cement plug.
Thank you,
Victoria
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
_____________________________________________
From: Loepp, Victoria T (OGC)
Sent: Wednesday, December 17, 2025 11:24 AM
To: Abby.Warren@conocophillips.com; Drake, Steve G <steve.g.drake@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>
Subject: CD1-47(PTD 212-083, Sundries 325-744 & 325-763)
Abby & Steve,
Please include in both sundries the well bore schematic post reservoir abandonment and pre-rig.
You can email that to me. I would like the schematic modified from the 325-763 sundry.
Thank you,
Victoria
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
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:Warren, Abby
To:Davies, Stephen F (OGC)
Cc:Earhart, Will C; Loepp, Victoria T (OGC); Dewhurst, Andrew D (OGC); Starns, Ted C (OGC)
Subject:RE: [EXTERNAL]RE: CRU CD1-47A (PTD 225-138) - Additional Questions
Date:Tuesday, January 6, 2026 2:05:18 PM
Hi Steve,
Below are the answers to your questions. Please let me know if you have any further questions.
Thanks
Abby
From: Davies, Stephen F (OGC) <steve.davies@alaska.gov>
Sent: Monday, January 5, 2026 2:27 PM
To: Earhart, Will C <William.C.Earhart@conocophillips.com>; Warren, Abby
<Abby.Warren@conocophillips.com>
Cc: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>; Dewhurst, Andrew D (OGC)
<andrew.dewhurst@alaska.gov>; Starns, Ted C (OGC) <ted.starns@alaska.gov>
Subject: [EXTERNAL]RE: CRU CD1-47A (PTD 225-138) - Additional Questions
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.
Abby, Will:
In addition to my questions, below, the directional surveying requirements of 20 AAC
25.050(a) were not clearly addressed in this application, and CPAI did not check the "20 AAC
25.050 requirements" box on the Permit to Drill application form. I notice small "Survey
Program" tables are included on pages 13, 29, and 30. These tables list tool types for various
hole sections, but no clear statements of survey station intervals are provided. What are
CPAI's plans? Please ensure that the well will be surveyed in accordance with the
requirements of 20 AAC 25.050.
We will survey every stand in accordance with 20 AAC 25.050. Sorry for missing the tic mark in that
box.
Thanks and Be Well,
Steve Davies
AOGCC
From: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>
Sent: Monday, January 5, 2026 10:35 AM
To: Earhart, Will C <william.c.earhart@conocophillips.com>
Cc: Davies, Stephen F (OGC) <steve.davies@alaska.gov>
Subject: FW: CRU CD1-47A (PTD 225-138) - Questions
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
From: Davies, Stephen F (OGC) <steve.davies@alaska.gov>
Sent: Monday, January 5, 2026 10:34 AM
To: Warren, Abby <abby.warren@conocophillips.com>
Cc: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>; Dewhurst, Andrew D (OGC)
<andrew.dewhurst@alaska.gov>; Starns, Ted C (OGC) <ted.starns@alaska.gov>
Subject: CRU CD1-47A (PTD 225-138) - Questions
Hello Abby,
I have a few questions concerning expected pressure in the "production" section of the CD1-
47A disposal injection well and the planned mud program. The MASP calculations on page 5
indicate the anticipated pore pressure in this section is 9.5 ppg, but the drilling fluid program
on page 8 indicates the planned mud density will range from 9.0 to 10.5 ppg. What are the
forecast pore pressures for the Sag River and the Ivishak? How were these forecast pressures
determined? Will 9.0 ppg mud be sufficient to drill the beginning of this section?
The Ivishak and Sag River pore pressures are estimated based on offset log data (sonic
and resistivity) using Eatons equation. It is calibrated with regional data as well as offset
MDTs and other drilling information. Regionally, the pore pressure for the Ivishak and Sag
River is ~9.5 ppg but may range from 9.2 9.6 ppg. In past experience we have
encountered lower pore pressure in both the Ivishak and the Sag River. The range in the
mud program is for the scenario that if we were to encounter losses and need to lower
mud weight, there is leeway in the permit to do so. The intention is to always have a
static over balance to the reservoir. We will be using a 9.5 ppg to initially drill this section
and be utilizing MPD.
Thanks and Be Well,
Steve Davies
AOGCC
CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and
Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential
and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are
an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the
mistake in sending it to you, contact Steve Davies at 907-793-1224 or steve.davies@alaska.gov
From:Warren, Abby
To:Loepp, Victoria T (OGC)
Cc:Dewhurst, Andrew D (OGC); Wallace, Chris D (OGC); Davies, Stephen F (OGC); Earhart, Will C
Subject:FW: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill Questions
Date:Monday, December 29, 2025 12:04:41 PM
Attachments:image001.png
image002.png
Hi Victoria
Please see answers in red to your questions with previous emails as well, let me know if you
need further clarification on anything.
Thanks
Abby
From: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>
Sent: Friday, December 26, 2025 11:49 AM
To: Warren, Abby <Abby.Warren@conocophillips.com>; Drake, Steve G
<Steve.G.Drake@conocophillips.com>; Earhart, Will C <William.C.Earhart@conocophillips.com>;
Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Davies, Stephen F (OGC)
<steve.davies@alaska.gov>; Wallace, Chris D (OGC) <chris.wallace@alaska.gov>
Subject: RE: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill
Questions
Sorry about the multiple emails with questions/comments. As I review the sundry and PTD, I run
across additional information.
What type of CBL will you be running to evaluate the Int 1 and Int 2 cementing? We will be running
an ultrasonic log. Base plan is the SLB IBC/USIT, pending unit availability but will pivot to another
ultrasonic if we need to.
Please provide kick tolerance calculations for the surface casing at kick off point and the Int 1. See
Below
Victoria
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
From: Loepp, Victoria T (OGC)
Sent: Friday, December 26, 2025 11:09 AM
To: 'Warren, Abby' <Abby.Warren@conocophillips.com>; 'Drake, Steve G'
<Steve.G.Drake@conocophillips.com>; 'Earhart, Will C' <william.c.earhart@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Davies, Stephen F (OGC)
<steve.davies@alaska.gov>; Wallace, Chris D (OGC) <chris.wallace@alaska.gov>
Subject: RE: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill
Questions
The CD1-47A PTD requests a variance for the packer depth of greater that 200 above the top of the
perforations. Please provide an approximate depth or range of depths for the packer placement.
The approximate setting depth is 9,983-10,033 MD, this is based on the current INT2 shoe depth of
10,223 MD and a liner lap for the production liner of 150-200 placing the packer in the confining
zone. The well will first be perforated in the Ivishak and the injection plan would be to then move up
in formation over the life of the well with the Sag being the last to be perfd.
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
From: Loepp, Victoria T (OGC)
Sent: Friday, December 26, 2025 10:45 AM
To: 'Warren, Abby' <Abby.Warren@conocophillips.com>; 'Drake, Steve G'
<Steve.G.Drake@conocophillips.com>; Earhart, Will C <william.c.earhart@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Davies, Stephen F (OGC)
<steve.davies@alaska.gov>; Wallace, Chris D (OGC) <chris.wallace@alaska.gov>
Subject: RE: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill
Questions
Another comment:
The MPSP for the rig work prior to drilling the sidetrack is 3587 psi and during the drilling the
sidetrack the MPSP is 3947 psi. The BOP test pressure of 4000 psi is not adequate. A BOP test
pressure of 4200 psi for all the rig work is proposed. This is after the initial BOP test pressure of 5000
psi. Please comment. Thank you for catching that. I support 4200psi, that is most prudent
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
From: Loepp, Victoria T (OGC)
Sent: Friday, December 26, 2025 9:50 AM
To: 'Warren, Abby' <Abby.Warren@conocophillips.com>; Drake, Steve G
<Steve.G.Drake@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Davies, Stephen F (OGC)
<steve.davies@alaska.gov>; Wallace, Chris D (OGC) <chris.wallace@alaska.gov>
Subject: RE: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill
Questions
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.
Abby,
Since the cement top behind the 9-5/8 liner was determined by calculation, it is uncertain that the
Qannik has cement coverage until the cement log is run. Please provide information on the Qannik
formation in this well and contingency plans for cementing if the TOC is below the Qannik. The
Qannik reservoir is present and does look like it has reservoir quality. However, in this area the
pay is primarily found in the gas cap (GOC is -4002 TVDSS) for the Qannik reservoir. Logs show
that we are still in quality pay but far from the existing development, and closer to the reservoir
edge.
In the event we find the Qannik is not adequately isolated, we will employ the same remedial
cementing concept as planned for the Halo. We have sourced enough 7 perforating guns to support
this contingency
Until the cement log is run, it is uncertain what is behind pipe at the Halo. If a balance plug is
unsuccessful, are there contingency plans? CPAI is sourcing adequate perforating guns to repeat the
perf-squeeze of the Halo and/or Qannik if necessary. We are also sourcing equipment to support
section milling of the 9-5/8 casing if operationally required.
What flow area per foot of perfs does the Gator provide versus the 7 guns at 15 SPF? The intended
7 TCP perf guns will produce 23.67 in2 TFA. The Gator tool would provide ~11.8 in2 of TFA per spec
sheet
Victoria
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
From: Warren, Abby <Abby.Warren@conocophillips.com>
Sent: Thursday, December 18, 2025 10:59 AM
To: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>; Drake, Steve G
<Steve.G.Drake@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>
Subject: RE: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill
Questions
Victoria
Yes, we will be running a USIT (step #11) to evaluate the cement behind pipe on the 9-5/8
liner. The original top of cement was estimated by cement calcs, as no log was run.
Top of Halo is 3913 MD/ 3034 TVD and the bottom is 4000 MD / 3081 TVD. It is poorly
developed in this area and is most likely a cemented stringer.
The likelihood of cutting and pulling from 400 is decent, if we cannot pull from 400 the
contingency would be to move up hole and recut. This is how most of our sidetracks below
surface casings are performed and Conoco has a high success rate at it with multiple cuts.
Current cement calc with pulling the casing 400 below SC and pumping the cement to 200
inside casing would be ~64 bbls of 16.0 ppg cement.
In terms of the Gator perforator, we plan to run ~150 of 7 guns with 15spf. Flow area should
be more than sufficient to get a proper squeeze to achieve isolation of the Halo. Pipe should
be free in that area, as such Conoco does not believe there is any added benefit to perf and
wash.
I have attached the prerig abandonment Schematic. One thing to note on the sundry, is that
section 7 for Discussion of Mud and Cuttings Disposal should read - Incidental fluids
developed from drilling operations on well CD1-47A will be injected into the Class 1
disposal well on CD1.
Please let me know if you have any questions.
Thanks
Abby
From: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>
Sent: Wednesday, December 17, 2025 12:01 PM
To: Warren, Abby <Abby.Warren@conocophillips.com>; Drake, Steve G
<Steve.G.Drake@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>
Subject: [EXTERNAL]RE: CD1-47(PTD 212-083, Sundries 325-744 & 325-763) Plug for Redrill
Questions
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.
Abby,
Is a CBL planned to verify the TOC above the Qannik? How was the TOC estimated? Please provide
log if logged.
Please provide top/bottom of Halo. Please provide information on Halo development in this well.
Have you considered Gator perforations across the Halo and potential perf and wash before
cementing?
How likely is it that the 9-5/8 casing can be cut and pulled from ~400 below the SC shoe?
I dont see any cement calculations or height of cement on the SC shoe cement plug.
Thank you,
Victoria
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
_____________________________________________
From: Loepp, Victoria T (OGC)
Sent: Wednesday, December 17, 2025 11:24 AM
To: Abby.Warren@conocophillips.com; Drake, Steve G <steve.g.drake@conocophillips.com>
Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>
Subject: CD1-47(PTD 212-083, Sundries 325-744 & 325-763)
Abby & Steve,
Please include in both sundries the well bore schematic post reservoir abandonment and pre-rig.
You can email that to me. I would like the schematic modified from the 325-763 sundry.
Thank you,
Victoria
Victoria Loepp
Senior Petroleum Engineer
Alaska Oil & Gas Conservation Commission
Work: (907)793-1247
Revised 7/2022
TRANSMITTAL LETTER CHECKLIST
WELL NAME: ______________________________________
PTD: _____________________________________________
___ Development ___ Service ___ Exploratory ___ Stratigraphic Test ___ Non-Conventional
FIELD: __________________________ POOL: ____________________________________
Check Box for Appropriate Letter / Paragraphs to be Included in Transmittal Letter
CHECK OPTIONS TEXT FOR APPROVAL LETTER
MULTI
LATERAL
(If last two digits
in API number are
between 60-69)
The permit is for a new wellbore segment of existing well Permit
Number _____________, API Number 50-______________________.
Production from or injection into this wellbore must be reported under
the original API Number stated above.
Spacing
Exception
The permit is approved subject to full compliance with 20 AAC 25.055.
Approval to produce or inject is contingent upon issuance of a
conservation order approving a spacing exception. The Operator
assumes the liability of any protest to the spacing exception that may
occur.
Dry Ditch Sample
All dry ditch sample sets submitted to the AOGCC must be in no greater
than 30-foot sample intervals from below the permafrost or from where
samples are first caught and 10-foot sample intervals through target
zones.
Non-
Conventional
Well
Please note the following special condition of this permit: Production or
production testing of coal bed methane is not allowed for this well until
after the Operator has designed and implemented a water-well testing
program to provide baseline data on water quality and quantity. The
Operator must contact the AOGCC to obtain advance approval of such
a water-well testing program.
Well Logging
Requirements
Regulation 20 AAC 25.071(a) authorizes the AOGCC to specify types
of well logs to be run. In addition to the well logging program proposed
by the Operator in the attached application, the following well logs are
also required for this well:
Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071,
composite curves for all well logs run must be submitted to the AOGCC
within 90 days after completion, suspension, or abandonment of this
well, or within 90 days of acquisition of the data, whichever occurs first.
CRU CD1-47A
UNDEFINED WDSPCOLVILLE RIVER
225-138
WELL PERMIT CHECKLISTCompanyConocoPhillips Alaska, Inc.Well Name: COLVILLE RIV UNIT CD1-47AInitial Class/TypeSER / 1-OILGeoArea890Unit50360On/Off ShoreOnProgram SERWell bore segAnnular DisposalPTD#:2251380Field & Pool:COLVILLE RIVER, UNDEFINED WDSP - 120036NA1 Permit fee attachedYes Surface Location lies within ADL0025559; Top Prod Int & TD lie within ADL0025558.2 Lease number appropriateYes3 Unique well name and numberNo COLVILLE RIVER, UNDEFINED WDSP - 120036 - governed by Statewide Regs4 Well located in a defined poolYes5 Well located proper distance from drilling unit boundaryYes Nearest well open to disposal interval is CD1-01A, 4,300' to south-southeast.6 Well located proper distance from other wellsYes7 Sufficient acreage available in drilling unitYes8 If deviated, is wellbore plat includedYes9 Operator only affected partyYes10 Operator has appropriate bond in forceYes11 Permit can be issued without conservation orderYes12 Permit can be issued without administrative approvalYes13 Can permit be approved before 15-day waitYes Class II injection for disposal purposes authorized by Rule 2 of AIO 18E.14 Well located within area and strata authorized by Injection Order # (put IO# in comments) (For Yes None penetrate planned disposal interval within 1/2-mile radius. Nearest is CD1-01A, 4300' away.15 All wells within 1/4 mile area of review identified (For service well only)No16 Pre-produced injector: duration of pre-production less than 3 months (For service well only)NA17 Nonconven. gas conforms to AS31.05.030(j.1.A),(j.2.A-D)NA18 Conductor string providedNA19 Surface casing protects all known USDWsNA20 CMT vol adequate to circulate on conductor & surf csgNo21 CMT vol adequate to tie-in long string to surf csgYes22 CMT will cover all known productive horizonsYes23 Casing designs adequate for C, T, B & permafrostYes24 Adequate tankage or reserve pitYes PTD 212-083, Sundries 325-744 & 325-76325 If a re-drill, has a 10-403 for abandonment been approvedYes26 Adequate wellbore separation proposedNA27 If diverter required, does it meet regulationsYes Max reservoir pressure is 4949 psig(9.5 ppg EMW); will drill w/ 9.0-11.5 ppg EMW28 Drilling fluid program schematic & equip list adequateYes29 BOPEs, do they meet regulationYes MPSP is 3947 psig; will test BOPs initially to 5000 psig and subsequently to 4200 psig30 BOPE press rating appropriate; test to (put psig in comments)Yes31 Choke manifold complies w/API RP-53 (May 84)Yes32 Work will occur without operation shutdownYes33 Is presence of H2S gas probableYes34 Mechanical condition of wells within AOR verified (For service well only)No Measures required: will penetrate previously used disposal interval.35 Permit can be issued w/o hydrogen sulfide measuresYes Alpine C may be abnormally pressured. Mitigation discussed on p. 10, 11.36 Data presented on potential overpressure zonesNA Previous injection in undefined disposal pool about 4300' - 4600' distant may have overpressured disposal37 Seismic analysis of shallow gas zonesNA interval. Supplies available onsite to increase mud weight. MPD will be available.38 Seabed condition survey (if off-shore)NA39 Contact name/phone for weekly progress reports [exploratory only]ApprSFDDate1/5/2026ApprVTLDate1/5/2026ApprSFDDate1/6/2026AdministrationEngineeringGeologyGeologic Commissioner:Date:Engineering Commissioner:DatePublic CommissionerDateJLC 1/7/2026