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Field: GRANE

General information

Current activity status: PRODUCING
Discovery wellbore: 25/11-15
Discovery year: 1991

Description Norwegian

Development

Grane is an oil field located east of the Balder field in the middle part of the North Sea. The water depth is 128 metres. The field has been developed with an integrated accommodation, drilling and processing facility with a fixed steel jacket. The facility has 40 well slots.

Reservoir

The field consists of one main reservoir structure and some additional segments. The reservoir consists mostly of sandstones inthe Heimdal Formation of Paleocene age with very good reservoir characteristics. The reservoir lies at a depth of approximately 1 700 metres, and there is full communication in the reservoir. The oil has high viscosity.

Recovery strategy

The recovery mechanism is gas injection at the top of the structure, and horizontal production wells at the bottom of theoil zone. Four water injection wells are planned later in the production period. From January 2011 Grane terminated gas import from the Heimdal gas centre, and only produced gas will be reinjected in the reservoir. Oil recovery will be maintained by expansion of the gas cap and water injection.

Transport

Oil from Grane is sent by pipeline to the Sture terminal for storage and export. Injection gas is imported to Grane through a pipeline from the Heimdal facility.

Status

Several new wells are being planned, most of them as multilateral wells. The first two water injection wells were initiated in 2010.

Activity status history

Activity status From date To date
PDO APPROVED 14.06.2000 22.09.2003
PRODUCING 23.09.2003

Current owner(s)

Business Area: GRANE UNIT

The field extends into

Block(s) Production licence(s)
25/11 001
25/11 169 B1

Current operator(s)

Company
Statoil Petroleum 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]
120.70 0.00 0.00 0.00 47.50 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 80.618084 0.000000 0.000000 0.000000 0.000000 80.618084
2011 7.372072 0.000000 0.000000 0.000000 0.000000 7.372072
nov.2011 0.794609 0.000000 0.000000 0.000000 0.000000 0.794609
oct.2011 0.472057 0.000000 0.000000 0.000000 0.000000 0.472057
sep.2011 0.101658 0.000000 0.000000 0.000000 0.000000 0.101658
aug.2011 0.756493 0.000000 0.000000 0.000000 0.000000 0.756493
jul.2011 0.759783 0.000000 0.000000 0.000000 0.000000 0.759783
jun.2011 0.669041 0.000000 0.000000 0.000000 0.000000 0.669041
may.2011 0.751845 0.000000 0.000000 0.000000 0.000000 0.751845
apr.2011 0.754187 0.000000 0.000000 0.000000 0.000000 0.754187
mar.2011 0.777051 0.000000 0.000000 0.000000 0.000000 0.777051
feb.2011 0.706334 0.000000 0.000000 0.000000 0.000000 0.706334
jan.2011 0.829014 0.000000 0.000000 0.000000 0.000000 0.829014
2010 9.654461 0.000000 0.000000 0.000000 0.000000 9.654461
dec.2010 0.826691 0.000000 0.000000 0.000000 0.000000 0.826691
nov.2010 0.712026 0.000000 0.000000 0.000000 0.000000 0.712026
oct.2010 0.786787 0.000000 0.000000 0.000000 0.000000 0.786787
sep.2010 0.743238 0.000000 0.000000 0.000000 0.000000 0.743238
aug.2010 0.816580 0.000000 0.000000 0.000000 0.000000 0.816580
jul.2010 0.834372 0.000000 0.000000 0.000000 0.000000 0.834372
jun.2010 0.818374 0.000000 0.000000 0.000000 0.000000 0.818374
may.2010 0.880612 0.000000 0.000000 0.000000 0.000000 0.880612
apr.2010 0.819588 0.000000 0.000000 0.000000 0.000000 0.819588
mar.2010 0.839551 0.000000 0.000000 0.000000 0.000000 0.839551
feb.2010 0.675916 0.000000 0.000000 0.000000 0.000000 0.675916
jan.2010 0.900726 0.000000 0.000000 0.000000 0.000000 0.900726
2009 10.723929 0.000000 0.000000 0.000000 0.000000 10.723929
2008 10.037249 0.000000 0.000000 0.000000 0.000000 10.037249
2007 11.992443 0.000000 0.000000 0.000000 0.000000 11.992443
2006 12.613752 0.000000 0.000000 0.000000 0.000000 12.613752
2005 10.307771 0.000000 0.000000 0.000000 0.000000 10.307771
2004 7.086147 0.000000 0.000000 0.000000 0.000000 7.086147
2003 0.751066 0.000000 0.000000 0.000000 0.000000 0.751066
1996 0.079194 0.000000 0.000000 0.000000 0.000000 0.079194

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 80.738445 7.499284 0.000000 88.237729 26.764990
2011 7.383969 1.514015 0.000000 8.897984 2.775518
nov.2011 0.796704 0.177679 0.000000 0.974383 0.369105
oct.2011 0.474754 0.064133 0.000000 0.538887 0.156923
sep.2011 0.104150 0.017341 0.000000 0.121491 0.017419
aug.2011 0.760375 0.157337 0.000000 0.917712 0.344076
jul.2011 0.759783 0.167863 0.000000 0.927646 0.324098
jun.2011 0.669043 0.150676 0.000000 0.819719 0.282106
may.2011 0.752583 0.163353 0.000000 0.915936 0.320494
apr.2011 0.754190 0.162480 0.000000 0.916670 0.288698
mar.2011 0.777045 0.159599 0.000000 0.936644 0.260601
feb.2011 0.706332 0.141675 0.000000 0.848007 0.206337
jan.2011 0.829010 0.151879 0.000000 0.980889 0.205661
2010 9.654416 1.768895 0.000000 11.423311 2.298645
dec.2010 0.826693 0.154974 0.000000 0.981667 0.188734
nov.2010 0.712025 0.146910 0.000000 0.858935 0.172224
oct.2010 0.786788 0.151524 0.000000 0.938312 0.194109
sep.2010 0.743239 0.137308 0.000000 0.880547 0.170226
aug.2010 0.816577 0.164981 0.000000 0.981558 0.184429
jul.2010 0.834370 0.153247 0.000000 0.987617 0.160078
jun.2010 0.818373 0.142296 0.000000 0.960669 0.212057
may.2010 0.880609 0.158401 0.000000 1.039010 0.212280
apr.2010 0.819591 0.144113 0.000000 0.963704 0.194516
mar.2010 0.839513 0.158500 0.000000 0.998013 0.215537
feb.2010 0.675915 0.101002 0.000000 0.776917 0.163198
jan.2010 0.900723 0.155639 0.000000 1.056362 0.231257
2009 10.723664 1.608023 0.000000 12.331687 2.725674
2008 10.037262 1.075384 0.000000 11.112646 3.296302
2007 11.997475 0.562650 0.000000 12.560125 3.316017
2006 12.626832 0.438517 0.000000 13.065349 4.685829
2005 10.281861 0.311107 0.000000 10.592968 4.534127
2004 7.086144 0.206833 0.000000 7.292977 2.947450
2003 0.867628 0.012719 0.000000 0.880347 0.185428
1996 0.079194 0.001141 0.000000 0.080335 0.000000

Exploration wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
25/11-15 1991.11.10 1991.12.25 704-L WILDCAT P&A OIL
25/11-18 1994.08.10 1994.10.24 794-L APPRAISAL P&A OIL
25/11-21 S 1995.10.23 1995.11.14 832-L APPRAISAL P&A OIL
25/11-21 A 1996.05.12 1996.10.01 845-L APPRAISAL RE-CLASS TO TEST OIL
4 wellbore(s)

Development wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
25/11-G-1 Y1 2007.12.17 2008.02.10 2920-P1 PRODUCTION PRODUCING OIL
25/11-G-1 Y2 2008.02.11 2008.03.04 2920-P2 PRODUCTION PRODUCING OIL
25/11-G-1 Y3 2008.03.05 2008.03.29 2920-P3 PRODUCTION PRODUCING OIL
25/11-G-1 Y4 2008.03.30 2008.04.22 2920-P4 PRODUCTION PRODUCING OIL
25/11-G-2 Y1 2007.02.10 2007.04.10 2813-P1 PRODUCTION PRODUCING OIL
25/11-G-2 Y2 2007.04.13 2007.05.06 2813-P2 PRODUCTION PRODUCING OIL
25/11-G-2 Y3 2007.05.07 2007.07.25 2813-P3 PRODUCTION PRODUCING OIL
25/11-G-3 2009.10.09 2010.01.25 2956-P OBSERVATION PLUGGED
25/11-G-3 AY1 2010.01.26 2010.02.11 3139-P1 PRODUCTION PRODUCING OIL
25/11-G-3 AY2 2010.02.13 2010.02.24 3139-P2 PRODUCTION SUSP.AT TD OIL
25/11-G-3 AY3 2010.03.05 2010.03.16 3139-P3 PRODUCTION SUSP.AT TD OIL
25/11-G-4 3211-P PREDRILLED
25/11-G-5 2004.11.07 2005.03.18 2479-P PRODUCTION PLUGGED OIL
25/11-G-5 A 2011.08.03 2011.08.09 3385-P PRODUCTION PLUGGED
25/11-G-5 BY1 2011.10.20 2011.11.09 3413-P1 PRODUCTION SUSP.AT TD OIL
25/11-G-5 BY2 2011.11.10 2011.11.28 3413-P2 PRODUCTION SUSP.AT TD OIL
25/11-G-5 BY3 2011.11.29 2011.12.08 3413-P3 PRODUCTION SUSP.AT TD OIL
25/11-G-5 BY4 2011.12.11 2011.12.29 3413-P4 PRODUCTION SUSP.AT TD OIL
25/11-G-6 2004.07.30 2004.08.18 2440-P PRODUCTION PRODUCING OIL
25/11-G-7 2010.05.13 2010.07.19 3111-P PRODUCTION PLUGGED
25/11-G-7 AY1 2010.08.21 2010.09.13 3255-P1 PRODUCTION PRODUCING OIL
25/11-G-7 AY2 2010.09.14 2010.10.27 3255-P2 PRODUCTION SUSP.AT TD OIL
25/11-G-7 AY3 2010.10.28 2010.11.13 3255-P3 PRODUCTION SUSP.AT TD OIL
25/11-G-8 2005.09.10 2005.11.27 2601-P PRODUCTION PRODUCING OIL
25/11-G-9 2004.05.03 2004.05.24 2408-P PRODUCTION PRODUCING OIL
25/11-G-10 Y1 2005.11.29 2006.01.11 2651-P1 PRODUCTION PRODUCING OIL
25/11-G-10 Y2 2006.01.12 2006.02.20 2651-P2 PRODUCTION PRODUCING OIL
25/11-G-11 2004.09.14 2004.10.20 2468-P PRODUCTION PRODUCING OIL
25/11-G-12 Y1 2006.08.11 2006.10.21 2737-P1 PRODUCTION PRODUCING OIL
25/11-G-12 Y2 2006.10.23 2006.12.09 2737-P2 PRODUCTION PRODUCING OIL
25/11-G-13 Y1 2009.03.09 2009.07.23 2974-P1 PRODUCTION PRODUCING OIL
25/11-G-13 Y2 2009.07.24 2009.08.17 2974-P2 PRODUCTION PRODUCING OIL
25/11-G-13 Y3 2009.08.17 2009.09.19 2974-P3 PRODUCTION PRODUCING OIL
25/11-G-13 Y4 2974-P4 PRODUCTION
25/11-G-13 A 2009.08.31 2009.09.04 3128-P OBSERVATION PLUGGED
25/11-G-13 B 2009.08.28 2009.08.30 3129-P OBSERVATION PLUGGED
25/11-G-14 2004.03.02 2004.04.03 2398-P INJECTION INJECTING WATER
25/11-G-15 2008.11.10 2008.12.19 2957-P OBSERVATION PLUGGED
25/11-G-15 AY1 2008.12.20 2009.01.03 3032-P1 PRODUCTION PRODUCING OIL
25/11-G-15 AY2 2009.01.04 2009.01.31 3032-P2 PRODUCTION PRODUCING OIL
25/11-G-15 AY3 2009.02.01 2009.02.24 3032-P3 PRODUCTION PRODUCING OIL
25/11-G-16 Y1 2008.07.19 2008.09.09 2958-P1 PRODUCTION PRODUCING OIL
25/11-G-16 Y2 2008.09.10 2008.10.03 2958-P2 PRODUCTION PRODUCING OIL
25/11-G-16 Y3 2008.10.04 2008.10.24 2958-P3 PRODUCTION PRODUCING OIL
25/11-G-17 2001.12.15 2002.02.27 2060-P PRODUCTION PRODUCING OIL
25/11-G-18 2002.10.28 2002.11.20 2195-P PRODUCTION CLOSED OIL
25/11-G-19 2002.06.01 2002.06.28 2122-P PRODUCTION PRODUCING OIL
25/11-G-20 2002.04.11 2002.04.22 2100-P OBSERVATION PLUGGED NOT APPLICABLE
25/11-G-20 A 2002.04.22 2002.05.28 2101-P INJECTION INJECTING GAS
25/11-G-20 B 2102-P INJECTION
25/11-G-21 2001.09.06 2001.12.14 2000-P PRODUCTION PRODUCING OIL
25/11-G-21 A 3451-P OBSERVATION
25/11-G-21 BY1 3452-P1 PRODUCTION
25/11-G-21 BY2 3452-P2 PRODUCTION
25/11-G-21 BY3 3452-P3 PRODUCTION
25/11-G-22 2002.08.24 2002.09.18 2153-P PRODUCTION PRODUCING OIL
25/11-G-23 2002.12.17 2003.10.02 2217-P INJECTION INJECTING WATER
25/11-G-23 A 2011.06.23 2011.07.23 3361-P INJECTION SUSP.AT TD WATER
25/11-G-24 2001.09.13 2001.10.16 1962-P OBSERVATION PLUGGED NOT APPLICABLE
25/11-G-24 A 2001.10.17 2001.11.14 1963-P INJECTION INJECTING GAS
25/11-G-25 2002.06.28 2002.08.06 2144-P PRODUCTION PRODUCING OIL
25/11-G-26 2002.03.01 2002.04.10 2084-P PRODUCTION PRODUCING OIL
25/11-G-27 2001.12.17 2002.01.23 2047-P OBSERVATION PLUGGED NOT APPLICABLE
25/11-G-27 A 2002.11.20 2002.12.17 2048-P PRODUCTION PRODUCING OIL
25/11-G-28 2002.09.20 2002.10.25 2180-P PRODUCTION PRODUCING OIL
25/11-G-29 3212-P PREDRILLED
25/11-G-30 Y1 2006.12.08 2007.01.17 2788-P1 PRODUCTION PRODUCING OIL
25/11-G-30 Y2 2007.01.18 2007.02.09 2788-P2 PRODUCTION PRODUCING OIL
25/11-G-31 2007.11.30 2007.12.17 2905-P INJECTION SUSPENDED
25/11-G-32 2010.03.29 2010.12.12 3112-P INJECTION INJECTING WATER
25/11-G-33 3213-P PREDRILLED
25/11-G-34 2004.08.19 2005.07.20 2544-P PRODUCTION PRODUCING OIL
25/11-G-35 2006.02.21 2006.03.15 2678-P OBSERVATION PLUGGED NOT APPLICABLE
25/11-G-35 A 2006.03.16 2006.04.13 2679-P PRODUCTION PRODUCING OIL
25/11-G-36 3214-P PREDRILLED
25/11-G-37 3116-P PRODUCTION PREDRILLED
25/11-G-38 2010.12.21 2011.03.08 3215-P OBSERVATION PLUGGED
25/11-G-38 AY1 2011.03.31 2011.04.24 3318-P1 PRODUCTION PRODUCING OIL
25/11-G-38 AY2 2011.04.25 2011.05.08 3318-P2 PRODUCTION SUSP.AT TD OIL
25/11-G-38 AY3 2011.05.11 2011.05.24 3318-P3 PRODUCTION SUSP.AT TD OIL
25/11-G-38 AY4 3318-P4 PRODUCTION
25/11-G-39 2006.04.29 2006.06.08 2690-P OBSERVATION PLUGGED
25/11-G-39 AY1 2006.06.13 2007.06.15 2691-P1 PRODUCTION PLUGGED
25/11-G-39 BY1 2007.07.29 2007.09.18 2870-P1 PRODUCTION PRODUCING OIL
25/11-G-39 BY2 2007.09.30 2007.10.21 2870-P2 PRODUCTION PRODUCING OIL
25/11-G-39 BY3 2007.10.22 2007.11.27 2870-P3 PRODUCTION PRODUCING OIL
25/11-G-40 2005.01.25 2005.02.07 2514-P OBSERVATION PLUGGED NOT APPLICABLE
25/11-G-40 A 2005.03.15 2005.09.04 2515-P PRODUCTION PRODUCING OIL
25/11-G-41 2010.05.23 2010.06.05 3224-P OBSERVATION SUSPENDED
89 wellbore(s)

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