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Field: VARG

General information

Current activity status: PRODUCING
Discovery wellbore: 15/12-4
Discovery year: 1984
Discoveries included: 15/12-20 S
View large picture.

Description Norwegian

Development

Varg is an oil field to the south of Sleipner Øst in the middle part of the North Sea. The water depth in the area is 84 metres. The field has been developed with the production vessel, “Petrojarl Varg”, which has integrated oil storage connected to the wellhead facility Varg A. The decommissioning plan for the field was approved in 2001. The plan then was to produce until summer 2002, but measures taken on the field have prolonged its lifetime.

Reservoir

The reservoir is in Upper Jurassic sandstones at a depth of approximately 2 700 metres. The structure is segmented and includes several isolated compartments with varying reservoir properties.

Recovery strategy

Recovery takes place by pressure maintenance using water and gas injection. The smaller structures are produced by pressure depletion. All the wells are producing with gas lift.

Transport

Oil is off-loaded from the production vessel onto tankers. All the gas is injected, but a solution for possible gas export in the future is being considered.

Status

Varg is in decline, but the field is expected to produce until 2021 if the lifetime of the facilities can be extended. Measures to optimise recovery are being considered, among others water alternating gas injection (WAG). New wells are being drilled, and several are planned for the coming years. The discovery 15/12-21 (Grevling), proven in 2009, may be connected to Varg, which can prolong the lifetime of the Varg field.

Activity status history

Activity status From date To date
PDO APPROVED 03.05.1996 22.12.1998
PRODUCING 22.12.1998

Current owner(s)

Production License: 038

The field extends into

Block(s) Production licence(s)
15/12 038

Current operator(s)

Company
Talisman Energy Norge AS

The NPDs reserve estimates as of 31.12.2010 (Norwegian share)

Recoverable reserves Remaining reserves
Oil
[mill Sm3]		 Gas
[bill Sm3]		 NGL
[mill tonn]		 Cond.
[mill Sm3]		 Oil
[mill Sm3]		 Gas
[bill Sm3]		 NGL
[mill tonn]		 Cond.
[mill Sm3]
16.50 0.00 0.00 0.00 3.10 0.00 0.00 0.00

Net production of saleable products (Norwegian share)

NGL = butane + ethane + isobutane + propane + LPG + gasoline + NGL mix.
Condensate = Condensate.
Sm3o.e. = oil + gas + NGL + condensate.

Charts


Oil
[mill Sm3]		 Gas
[bill Sm3]		 NGL
[mill tonn]		 Cond.
[mill Sm3]		 NGL
[mill Sm3]		 Sm3o.e.
[mill]
Total per nov.2011 14.310908 0.000000 0.000000 0.000000 0.000000 14.310908
2011 0.878364 0.000000 0.000000 0.000000 0.000000 0.878364
nov.2011 0.071059 0.000000 0.000000 0.000000 0.000000 0.071059
oct.2011 0.092125 0.000000 0.000000 0.000000 0.000000 0.092125
sep.2011 0.076375 0.000000 0.000000 0.000000 0.000000 0.076375
aug.2011 0.058385 0.000000 0.000000 0.000000 0.000000 0.058385
jul.2011 0.068246 0.000000 0.000000 0.000000 0.000000 0.068246
jun.2011 0.046669 0.000000 0.000000 0.000000 0.000000 0.046669
may.2011 0.068856 0.000000 0.000000 0.000000 0.000000 0.068856
apr.2011 0.079869 0.000000 0.000000 0.000000 0.000000 0.079869
mar.2011 0.101554 0.000000 0.000000 0.000000 0.000000 0.101554
feb.2011 0.102316 0.000000 0.000000 0.000000 0.000000 0.102316
jan.2011 0.112910 0.000000 0.000000 0.000000 0.000000 0.112910
2010 1.420258 0.000000 0.000000 0.000000 0.000000 1.420258
dec.2010 0.128240 0.000000 0.000000 0.000000 0.000000 0.128240
nov.2010 0.125410 0.000000 0.000000 0.000000 0.000000 0.125410
oct.2010 0.127560 0.000000 0.000000 0.000000 0.000000 0.127560
sep.2010 0.122462 0.000000 0.000000 0.000000 0.000000 0.122462
aug.2010 0.062571 0.000000 0.000000 0.000000 0.000000 0.062571
jul.2010 0.123314 0.000000 0.000000 0.000000 0.000000 0.123314
jun.2010 0.115055 0.000000 0.000000 0.000000 0.000000 0.115055
may.2010 0.117502 0.000000 0.000000 0.000000 0.000000 0.117502
apr.2010 0.107060 0.000000 0.000000 0.000000 0.000000 0.107060
mar.2010 0.109056 0.000000 0.000000 0.000000 0.000000 0.109056
feb.2010 0.136277 0.000000 0.000000 0.000000 0.000000 0.136277
jan.2010 0.145751 0.000000 0.000000 0.000000 0.000000 0.145751
2009 0.788925 0.000000 0.000000 0.000000 0.000000 0.788925
2008 0.703283 0.000000 0.000000 0.000000 0.000000 0.703283
2007 0.797072 0.000000 0.000000 0.000000 0.000000 0.797072
2006 0.853520 0.000000 0.000000 0.000000 0.000000 0.853520
2005 1.281357 0.000000 0.000000 0.000000 0.000000 1.281357
2004 1.207342 0.000000 0.000000 0.000000 0.000000 1.207342
2003 0.920770 0.000000 0.000000 0.000000 0.000000 0.920770
2002 0.784198 0.000000 0.000000 0.000000 0.000000 0.784198
2001 1.185320 0.000000 0.000000 0.000000 0.000000 1.185320
2000 1.737726 0.000000 0.000000 0.000000 0.000000 1.737726
1999 1.742612 0.000000 0.000000 0.000000 0.000000 1.742612
1998 0.010161 0.000000 0.000000 0.000000 0.000000 0.010161

Gross production (Norwegian share)

Sm3o.e. = oil + gas + condensate.

Charts

Oil
[mill Sm3]		 Gas
[bill Sm3]		 Cond.
[mill Sm3]		 Sm3o.e.
[mill]		 Water
[mill Sm3]
Total per nov.2011 14.310908 3.504993 0.000000 17.815901 10.606807
2011 0.878364 0.217153 0.000000 1.095517 0.451424
nov.2011 0.071059 0.016347 0.000000 0.087406 0.022455
oct.2011 0.092125 0.023188 0.000000 0.115313 0.037841
sep.2011 0.076375 0.022285 0.000000 0.098660 0.039865
aug.2011 0.058385 0.021265 0.000000 0.079650 0.032646
jul.2011 0.068246 0.023726 0.000000 0.091972 0.041521
jun.2011 0.046669 0.021413 0.000000 0.068082 0.036460
may.2011 0.068856 0.017024 0.000000 0.085880 0.045978
apr.2011 0.079869 0.018728 0.000000 0.098597 0.040946
mar.2011 0.101554 0.022434 0.000000 0.123988 0.047282
feb.2011 0.102316 0.014781 0.000000 0.117097 0.053269
jan.2011 0.112910 0.015962 0.000000 0.128872 0.053161
2010 1.420258 0.257836 0.000000 1.678094 0.693809
dec.2010 0.128240 0.019690 0.000000 0.147930 0.065832
nov.2010 0.125410 0.019375 0.000000 0.144785 0.066197
oct.2010 0.127560 0.019253 0.000000 0.146813 0.066252
sep.2010 0.122462 0.018327 0.000000 0.140789 0.043003
aug.2010 0.062571 0.009467 0.000000 0.072038 0.027199
jul.2010 0.123314 0.018918 0.000000 0.142232 0.065024
jun.2010 0.115055 0.017978 0.000000 0.133033 0.071593
may.2010 0.117502 0.018761 0.000000 0.136263 0.078336
apr.2010 0.107060 0.021685 0.000000 0.128745 0.070639
mar.2010 0.109056 0.029896 0.000000 0.138952 0.057829
feb.2010 0.136277 0.029274 0.000000 0.165551 0.034283
jan.2010 0.145751 0.035212 0.000000 0.180963 0.047622
2009 0.788925 0.389876 0.000000 1.178801 1.034435
2008 0.703283 0.238714 0.000000 0.941997 1.655929
2007 0.797072 0.182114 0.000000 0.979186 1.681266
2006 0.853520 0.209860 0.000000 1.063380 0.873548
2005 1.281357 0.264047 0.000000 1.545404 0.326916
2004 1.207342 0.248988 0.000000 1.456330 0.365742
2003 0.920770 0.281662 0.000000 1.202432 0.769464
2002 0.784198 0.318782 0.000000 1.102980 1.391760
2001 1.185320 0.253949 0.000000 1.439269 1.066636
2000 1.737726 0.350470 0.000000 2.088196 0.295878
1999 1.742612 0.290225 0.000000 2.032837 0.000000
1998 0.010161 0.001317 0.000000 0.011478 0.000000

Exploration wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
15/12-4 1984.09.13 1984.10.31 433-L WILDCAT P&A OIL
15/12-5 1986.03.12 1986.05.04 507-L APPRAISAL P&A OIL
15/12-6 S 1990.08.19 1990.11.04 644-L APPRAISAL RE-CLASS TO DEV OIL
15/12-9 S 1992.07.17 1992.10.08 732-L APPRAISAL RE-CLASS TO DEV OIL
15/12-10 S 1996.10.02 1996.11.04 860-L APPRAISAL RE-CLASS TO DEV OIL
15/12-14 2003.12.08 2003.12.31 1069-L APPRAISAL RE-CLASS TO DEV OIL
15/12-20 S 2008.05.28 2008.07.01 1184-L WILDCAT RE-CLASS TO DEV OIL
7 wellbore(s)

Development wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
15/12-A-1 2004.03.26 2004.05.31 2404-P PRODUCTION PLUGGED OIL
15/12-A-1 A 2011.03.04 2011.03.10 3316-P PRODUCTION PLUGGED
15/12-A-2 1998.09.15 1998.10.02 1504-P PRODUCTION PLUGGED OIL
15/12-A-3 2005.05.14 2005.06.22 2567-P PRODUCTION PRODUCING OIL
15/12-A-3 A 2009.09.05 2009.09.29 3137-P PRODUCTION PRODUCING OIL
15/12-A-4 1996.10.02 1996.11.04 2745-P INJECTION INJECTING CUTTINGS
15/12-A-5 1998.10.17 1998.12.04 1507-P PRODUCTION PLUGGED OIL
15/12-A-5 A 2005.09.25 2005.10.10 2613-P PRODUCTION PRODUCING OIL
15/12-A-6 1999.05.01 1999.06.20 1596-P INJECTION PLUGGED GAS
15/12-A-6 A 2004.02.01 2004.03.15 2373-P INJECTION INJECTING WATER
15/12-A-7 2005.06.23 2005.07.28 2583-P PRODUCTION PLUGGED OIL
15/12-A-7 A 2008.05.26 2008.07.01 3092-P PRODUCTION PLUGGED OIL
15/12-A-7 B 2010.01.11 2010.02.06 3203-P PRODUCTION PLUGGED
15/12-A-7 C 2010.02.07 2010.02.22 3218-P INJECTION INJECTING WATER
15/12-A-8 1998.05.15 1998.07.04 1452-P PRODUCTION PLUGGED OIL
15/12-A-8 A 2008.07.30 2008.08.21 2993-P PRODUCTION PRODUCING OIL
15/12-A-9 2004.08.03 2004.11.03 2448-P INJECTION PLUGGED WATER
15/12-A-9 A 2006.08.11 2006.08.29 2729-P PRODUCTION PLUGGED OIL
15/12-A-9 B 2009.12.07 2009.12.27 3189-P PRODUCTION SUSP.AT TD OIL
15/12-A-10 2004.06.01 2004.08.02 2435-P PRODUCTION PLUGGED OIL
15/12-A-10 A 2009.10.19 2009.11.09 3163-P PRODUCTION PRODUCING OIL
15/12-A-11 1998.08.16 1998.08.31 1505-P PRODUCTION PRODUCING OIL
15/12-A-12 1999.03.14 1999.09.21 1576-P INJECTION PLUGGED GAS
15/12-A-12 A 2003.12.08 2003.12.31 2378-P PRODUCTION PLUGGED OIL
15/12-A-12 B 2006.09.14 2006.10.26 2765-P PRODUCTION PLUGGED OIL
15/12-A-12 C 2011.03.23 2011.04.11 3351-P PRODUCTION PLUGGED
15/12-A-12 D 2011.04.15 2011.04.20 3355-P PRODUCTION PLUGGED
15/12-A-13 1999.07.19 1999.08.25 1599-P PRODUCTION PRODUCING OIL
15/12-A-14 1998.07.10 1998.08.15 1471-P INJECTION INJECTING GAS
15/12-A-15 1998.12.25 1999.03.12 1529-P PRODUCTION PLUGGED NOT AVAILABLE
15/12-A-15 A 2003.01.23 2003.02.19 2206-P PRODUCTION PRODUCING OIL
15/12-A-16 2005.03.29 2005.05.14 2533-P INJECTION INJECTING WATER
32 wellbore(s)

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