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HomeMy WebLinkAboutOil-RedoubtShoal-UndefAlaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool
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AOGCC Pool Statistics Redoubt Shoal Field, Undef Oil Pool
Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 25 July 2005 Page: 1 > 2 > 3
Operator: Forest Oil Corporation
Discovery Well: Pan American Petroleum Corp.
Redoubt Shoal Unit No. 2
Permit #168-059
API No. 50-733-20040-01-00
Sec. 19, T07N, R13W, SM
Depth:14,060’ MD / 12,410' TVD
September 21, 1968
Status: Producing
Location: Offshore Cook Inlet Area Location Map Unit Location Map DNR Unit Map
Orders: Complete List
Summary: The Redoubt Unit undefined oil pool is located beneath the Cook Inlet, about 2-1/2 miles offshore and
approximately 65 miles southwest of Anchorage. The Pan Am Redoubt Shoal No. 2 exploration well
discovered this accumulation in 1968. It lies within the Hemlock Formation, about 11,500' below sea
level. In 2000, Forest Oil Corporation (“Forest”) set Osprey, the 16th Cook Inlet platform, explore and
develop the field. Regular production began in December 2000, and average daily production peaked in
May 2003 at rates of 3,481 barrels of oil, 853 MCF of gas, and 2,742 barrels of water from four
producing wells. During December 2004, daily production from the pool averaged 761 barrels of oil, 293
barrels of water, and 186 MCF of gas from two producers.
Structure Map Strat Column
Orig. Oil in Place: Not available
Production: Prod Chart Prod Report Prod Data
Oil (bbls) NGL (bbls) Gas (mcf) Water (bbls)
Cumulative 1,519,282 0 371,988 1,399,244
2001 Total 1,221 0 0 0
2002 Total 46,328 0 7,829 3,084
2003 Total 910,694 0 211,827 791,262
2004 Total 559,443 0 137,063 604,649
2003 Daily Rate 2,495 0 580 2,168
2004 Daily Rate 1,533 0 376 1,657
Change (%)-39%0 -35%-24%
Continued: 1 > 2 > 3
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Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool
Home Orders Staff Calendar Contact Us
AOGCC Pool Statistics Redoubt Shoal Field, Undef Oil Pool
Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 25 July 2005 Page: 1 > 2 > 3
EOR Injection:Disposal Injection in Field:
Chart Report Data
Gas (Mcf)Water Disposed Fluids
Cumulative 0 0 Cumulative 1,002,613
2001 Total 0 0 2001 Total 26,409
2002 Total 0 0 2002 Total 99,172
2003 Total 0 0 2003 Total 331,185
2004 Total 0 0 2004 Total 545,847
2003 Rate (per day) 0 0 2003 Rate (per day) 907
2004 Rate (per day) 0 0 2004 Rate (per day) 1,495
Change (%) 0 0 Change (%) 65%
Field Development Information:
Wells In Field
Type Well Status 2004 2003 2002 2001 2000
Producer Oil Producer 5 4 4 3 0
Injector Water Injector 0 0 0 0 0
Gas Injector 0 0 0 0 0
WAG Injector 0 0 0 0 0
Water Supply 0 0 0 0 0
Disposal 1 1 1 1 0
Non-Operating Op Shut Down 1 0 0 0 0
Abandoned 3 3 2 1 3
Total 10 8 7 5 3
Active Completions in Pool (Month of December):
Type Well Status 2004 2003 2002 2001 2000
Oil Producer Flowing 0 0 0 0 0
Gas Lift 0 0 0 0 0
Pump 2 3 2 0 0
Shut-In 3 1 0 0 0
Service Well Water Injector 0 0 0 0 0
Gas Injector 0 0 0 0 0
WAG Injector 0 0 0 0 0
Water Supply 0 0 0 0 0
Shut-In 0 0 0 0 0
Disposal Undef.Disposal Injector 1 1 0 0 0
Shut-In 0 0 1 0 0
Total 6 5 3 0 0
Continued: 1 > 2 > 3
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Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool
Home Orders Staff Calendar Contact Us
AOGCC Pool Statistics Redoubt Shoal Field, Undef Oil Pool
Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 25 July 2005 Page: 1 > 2 > 3
Permitted Wells in Field:
Type Well Status 2004 2003 2002 2001 2000
Development New 0 1 2 0 0
Sidetrack 0 1 0 0 0
Multilateral 0 0 0 0 0
Service New 0 0 0 0 0
Sidetrack 0 0 0 0 0
Multilateral 0 0 0 0 0
Exploration New 0 0 1 3 01
Sidetrack 0 0 1 0 0
Total 0 2 4 3 1
Reservoir Properties:
Description 2004 2003 2002 2001 2000
Reference Datum - ft. below sea level 12000 12000 12000 12000 12000
Temperature - ° F 195 195 195 195 -
Porosity - % 11.5 11.5 11.5 11.5 10.9
Permeability - md 6 6 6 6 -
Swi - % 38 38 38 38 45.6
Oil Viscosity @ Orig. Press. cp 2 - 2 2 -
Oil Viscosity @ Sat. Press. cp -----
Orig. Press. - psi 5338 5338 5100 5100 5350
Bubble Point - psi 1450 1450 1450 1450 -
Current Reservoir Press. - psi -5100 5338 5100 -
Oil Gravity - ° API 26.5 26.5 26.5 26.5 24-28
Gas Specific Gravity (Air = 1.0)-----
Gross Pay - ft.675 ----
Net Pay - ft.180 450 450 450 237
Orig. FVF - RB/STB 1.16 1.16 1.16 1.16 1.28
Bubble Point FVF - RB/STB -----
Orig. GOR - SCF/STB 265 265 265 265 286-410
GOR (current yr.) - SCF/STB 245 245 245 --
References / Summary
Continued: 1 > 2 > 3
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State of Alaska, Oil and Gas Conservation Commission
Production History for:
Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells
Producing
REDOUBT SHOAL, UNDEFINED OIL Pool
Jan 1958 Dec 2004
Sep 1968 1596 456 2492 1
1596 456 249Year Total
Feb 2001 1221 0 01 1
1221 0 0Year Total
Dec 2002 46328 11350 308435 2
46328 11350 3084Year Total
Jan 2003 74332 18211 1710945 3
Feb 2003 78676 19276 4055684 3
Mar 2003 76979 18860 2380178 3
Apr 2003 75327 18455 7858283 4
May 2003 107915 26439 84999124 4
Jun 2003 93500 22907 73367120 4
Jul 2003 83703 20508 75351123 4
Aug 2003 77414 18966 75128123 4
Sep 2003 69751 17089 82841111 4
Oct 2003 57935 14194 8039493 3
Nov 2003 56455 13831 7906190 3
Dec 2003 58707 14383 8007393 3
910694 223119 791262Year Total
Jan 2004 55714 13650 8078393 3
Feb 2004 49845 12212 7414187 3
Mar 2004 63282 15504 87001155 5
Apr 2004 66434 16276 90517151 5
May 2004 72902 17861 95093137 5
Jun 2004 51245 12555 61169109 4
Jul 2004 39070 9572 2526793 3
Aug 2004 39799 9751 2455893 3
Sep 2004 36841 9026 2622790 3
Oct 2004 34873 8544 2282087 3
Nov 2004 25843 6331 798160 2
Dec 2004 23595 5781 909262 2
559443 137063 604649Year Total
1,519,282 371,988 1,399,244Pool Total
6/2/2005 Page 1 of 1
State of Alaska, Oil and Gas Conservation Commission
Injection History for:
Month Liquid (BBL)Gas (MCF)DaysInj Wells
Injecting
REDOUBT SHOAL, UNDEFINED WDSP Pool
Aug 2001 5140 061
Sep 2001 4208 041
Oct 2001 4292 041
Nov 2001 3735 041
Dec 2001 9034 012 1
Year Total 26409 0
Jan 2002 7187 011 1
Feb 2002 5650 071
Mar 2002 2182 061
Apr 2002 10293 011 1
May 2002 6368 051
Jun 2002 10373 016 1
Jul 2002 8542 012 1
Aug 2002 5622 071
Sep 2002 3186 031
Oct 2002 24711 016 1
Nov 2002 1818 016 1
Dec 2002 13240 091
Year Total 99172 0
Jan 2003 17057 017 1
Feb 2003 6222 051
Mar 2003 4784 041
Apr 2003 3018 091
May 2003 4617 051
Jun 2003 4168 051
Jul 2003 12926 011 1
Aug 2003 73932 011 1
Sep 2003 61515 028 1
Oct 2003 52176 029 1
Nov 2003 46403 029 1
Dec 2003 44367 031 1
Year Total 331185 0
Jan 2004 58081 030 1
Feb 2004 78086 029 1
Mar 2004 91414 031 1
Apr 2004 89991 030 1
May 2004 80451 023 1
Jun 2004 60086 027 1
Jul 2004 27279 028 1
Aug 2004 26291 029 1
Sep 2004 3256 021
Oct 2004 22300 030 1
Nov 2004 4901 016 1
Dec 2004 3711 022 1
Year Total 545847 0
Pool Total 1,002,613 0
1/31/2005 Page 1 of 1
N
RU 2
RU 1
REDOUBT SHOAL U 2
REDOUBT BAY U 1
REDOUBT SH ST 22064 1
REDOUBT SHOAL ST 1 RU 6
RU 3
RU 4
RU D1
RU 5
RU 5A7 N6 N14 W 13 W
Redoubt
Shoal UnitCook InletWest McArthur
River Unit
AOGCC
Redoubt Shoal
Unit
LOCATION MAP
0 1
mile
Knik ArmTurna
g
a
i
n
A
r
m
Seward Hwy
H w y
GlennSeward Hwy
Sterling
A la s k a R R
A laskaR RHwy
Parks
Hwy
SterlingHwyGulf of AlaskaC o o k I n l e tKachemak BayWasilla
Tyonek
Seward
Palmer
Ninilchik
Nikiski
Kenai
Homer
Cooper Landing
Anchorage
Houston
Redoubt
Shoal Undef.
Oil Pool
Osprey
Cook Inlet, Alaska
Reference List
REDOUBT SHOAL, UNDEFINED OIL
Alaska Department of Natural Resources, Division of Oil and Gas, 2004, Annual Report,
available online at:
http://www.dog.dnr.state.ak.us/oil/products/publications/annual/report.htm
Alaska Oil and Gas Conservation Commission, 2005, Production Database
Forest Oil Corporation, 2001, Forest Oil Announces Second Successful Well Test in
Redoubt Shoal, Forest Oil Corporation Press Release, Jun 19, 2001; online at:
http://phx.corporate-ir.net/phoenix.zhtml?c=92251&p=irol-
newsArticle&t=Regular&id=184221&
Forest Oil, 2004, Forest Oil Reduces Est. of Proved Reserves for Redoubt Shoal &
Other Properties & Impairs Intern'l Assets, Press Release, Jan. 27, 2004, online at:
http://phx.corporate-ir.net/phoenix.zhtml?c=92251&p=irol-
newsArticle&t=Regular&id=488246&
Johansson, M. and A. Saltmarsh, 2002, The geological application of acoustic images in
homogeneous clastic sediments; examples from the Tertiary Hemlock formation, Cook
Inlet, Alaska, SPE Paper 77995.
Losbaugh, D., 2001, Forest Oil Makes Cook Inlet Strike, Peninsula Clarion, web posted
on March 1, 2001.
Nelson, K., 2000, Osprey Platform Installation Complete, in Petroleum News, Vol. 5, No.
8, week of August 28, 2000; available online at:
http://www.petroleumnews.com/pnads/732030291.shtml
Nelson, K., 2000, The Osprey has Landed, in Petroleum News, Vol. 5, No. 7, week of
July 28, 2000; available online at:
http://www.petroleumnews.com/pnads/743994017.shtml
Nelson, K., 2004, Redoubt Flame Dwindles, in Petroleum News, Vol. 9, No. 5, week of
February 01, 2004; available online at:
http://www.petroleumnews.com/pnads/997265103.shtml
6/2/2005 Page 1 of 1
Redoubt Shoal Undefined Oil Pool
Summary
The Redoubt Unit undefined oil pool is located beneath the Cook Inlet, about 2-1/2 miles
offshore and approximately 65 miles southwest of Anchorage. The Pan Am Redoubt Shoal
No. 2 exploration well discovered this accumulation in 1968. It lies within the Hemlock
Formation, about 11,500' below sea level.1 In 2000, Forest Oil Corporation (“Forest”) set
Osprey, the 16th Cook Inlet platform, explore and develop the field. Regular production began
in December 2000, and average daily production peaked in May 2003 at rates of 3,481 barrels
of oil, 853 MCF of gas, and 2,742 barrels of water from four producing wells. During
December 2004, daily production from the pool averaged 761 barrels of oil, 293 barrels of
water, and 186 MCF of gas from two producers.2
SFD
Revised May 5, 2005
1 Alaska Oil and Gas Conservation Commission, 2004, Redoubt Shoal Unit section and maps, 2003 Annual
Report, available online at http://www.aogcc.alaska.gov/annual/annindex.htm 2 Alaska Oil and Gas Conservation Commission, 2005, Production Database
AAOrder No.DateOperator Description Current
REDOUBT SHOAL FIELD
*No Pool*
Current Orders
22 2DIO 03-Feb-04FOREST OIL C Disposal injection of Treated Sanitary Waste and Produced water
into Redoubt Unit #D1.
Y
22 1DIO 19-Jun-02FOREST OIL C Authorize to dispose of storm water into the Redoubt Unit #D1
disposal well.
Y
22 0DIO 09-Aug-01FOREST OIL C Disposal injection order for the Redoubt Unit #D1 well.Y
70AEO 01-Aug-01FOREST OIL C Exempts aquifer within 1/2 mile radius and below the depth of 3749'
MD in the Redoubt Unit #D1.
Y
AAOrder No.DateOperator Description Current
REDOUBT SHOAL FIELD
*No Pool*
Obsolete Orders
90OTH 06-Jan-00FOREST OIL C Redoubt Field Plan.N
AAOrder No.DateOperator Description Current
REDOUBT SHOAL FIELD
UNDEFINED OIL POOL
Current Orders
20ERIO 26-Aug-04FOREST OIL C Authorizes a pilot waterfllood project designed to test the potential
for enhanced oil recovery in the Hemlock Formation, Redoubt Unit,
Cook Inlet.
Y
AAOrder No.DateOperator Description Current
REDOUBT SHOAL FIELD
UNDEFINED OIL POOL
Spacing Exception Orders
513 0CO 05-Mar-04FOREST OIL C Spacing exception to allow drilling and operation of Redoubt 7.Y
Redoubt
Shoal Undef
0.01.02.03.04.05.0Producing Oil WellsREDOUBT SHOAL FIELD, UNDEFINED OIL POOL020406080100Water Cut ( % )REDOUBT SHOAL FIELD, UNDEFINED OIL POOL0.010.050.10.5151050100Cum Oil Prod ( MMbbl )Cum Water Prod ( MMbbl )Cum Gas Prod ( MMMcf )REDOUBT SHOAL FIELD, UNDEFINED OIL POOL200203040.0010.0050.010.050.10.5151050100Oil Rate (CD) ( Mbbl/d )Water Rate (CD) ( Mbbl/d )Gas Rate (CD) ( MMcf/d )Gas / Oil Ratio ( Mcf/bbl )REDOUBT SHOAL FIELD, UNDEFINED OIL POOL
0.01.02.03.0Disposal WellsREDOUBT SHOAL FIELD, UNDEFINED WASTE DISPOSAL POOL0.0010.010.1110Cum Water Disp ( MMbbl )REDOUBT SHOAL FIELD, UNDEFINED WASTE DISPOSAL POOL200102030410501005001000500010000Waste Disposal Rate ( bbl/d )REDOUBT SHOAL FIELD, UNDEFINED WASTE DISPOSAL POOL