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Field: ÅSGARD

General information

Current activity status: PRODUCING
Discovery wellbore: 6507/11-1
Discovery year: 1981
Discoveries included: 6506/12-1 SMØRBUKK
6506/12-12 S
6506/12-3 SMØRBUKK SØR
View large picture.

Description Norwegian

Development

Åsgard is located centrally in the Norwegian Sea. The water depth in the area is 240 – 300 metres. Åsgard includes the disco-veries 6506/12-1 Smørbukk, 6506/12-3 Smørbukk Sør and 6507/11-1 Midgard. The field has been developed with subsea completed wells tied back to a production and storage vessel, “Åsgard A”, which produces and stores oil, and a floating, semi-submersible facility, Åsgard B, for gas and condensate processing. The gas centre is connected to a storage vessel for condensate, Åsgard C. The Åsgard field has been developed in two phases.The liquid phase came on stream in 1999 and the gas export phase started on 01.10.2000.The Åsgard facilities are an important part of the Norwegian Sea infrastructure where gas from Mikkel and Yttergryta is processed, and injection gas is delivered to Tyrihans. The Morvin field is tied back to Åsgard B and the production came on stream in August 2010.

Reservoir

The Smørbukk deposit is a rotated fault block, bordered by faults in the west and north and structurally deeper areas to the south and east. The reservoir formations Garn, Ile, Tofte, Tilje and Åre are of Jurassic age and contain gas, condensate and oil. The Smørbukk Sør deposit, with reservoir rocks in the Garn, Ile and Tilje Formations contains oil, gas and condensate. The Midgard deposit is divided into four structural segments with the main reservoir in the Garn and Ile Formations. The sandstone reservoirs lie at depths down to 4 850 metres. The reservoir quality varies between the formations, and there are large differences in porosity and permeability between the three deposits.

Recovery strategy

Smørbukk Sør is produced by pressure support from gas injection. Smørbukk is produced partly by pressure depletion and partly by injection of excess gas from the field. Midgard is produced by pressure depletion. Studies are ongoing regarding converting gas injection wells to gas production wells at Smørbukk. This will maintain both gas injection in Smørukk Sør and gas export volume from Åsgard. Studies are also ongoing regarding the establishment of a gas compression facility at Midgard which is planned for start up in 2014. This facility is needed to maintain the gas stream in the pipeline from Mikkel and Midgard to Åsgard B and thereby prevent creation of hydrates in the pipeline, which lead to production stop. A stable supply of low CO2 gas from Mikkel and Midgard is also important for dilution of the high CO2 gas from Kristin in the Åsgard Transport to Kårstø.

Transport

Oil and condensate are temporarily stored at the field and shipped to land by tankers. The gas is exported through Åsgard Transport to Kårstø. The condensate from Åsgard is sold as oil (Halten Blend).

Status

Most of the production wells have been drilled, and efforts are being made to increase recovery from the field, partly by drilling several sidetrack wells. Other efforts for increasing recovery from Åsgard A include for example upgrading the CO2 removal facility at Åsgard B and extending the lifetime of Åsgard A. An appraisal well in 2009 proved oil and gas in a new segment northeast of Smørbukk. Work has started to tie-in the deposit to Åsgard B, with planned production start in 2013. There are other proven resources in the area with low CO2 gas. Work is being done to realise these via Mikkel and Midgard to Åsgard B.

Activity status history

Activity status From date To date
PDO APPROVED 14.06.1996 19.05.1999
PRODUCING 19.05.1999

Current owner(s)

Business Area: ÅSGARD UNIT

The field extends into

Block(s) Production licence(s)
6406/3 094 B
6407/2 074
6407/3 237
6506/11 134
6506/12 094
6507/11 062

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]
100.80 188.30 36.00 16.10 26.90 89.00 18.30 - 1.10

Comments
Negative figures for remaining reserves are due to a mismatch between the approximate recoverable reserves and exact production figures.

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 77.498731 110.264442 19.885453 17.112745 39.765025 244.640943
2011 3.570984 10.974391 2.225473 0.000000 4.491666 19.037041
nov.2011 0.330680 0.949818 0.201116 0.000000 0.407214 1.687712
oct.2011 0.347866 1.021705 0.217825 0.000000 0.441151 1.810722
sep.2011 0.353914 0.967738 0.200494 0.000000 0.405114 1.726766
aug.2011 0.311891 0.975499 0.193658 0.000000 0.395765 1.683155
jul.2011 0.247207 0.980535 0.198483 0.000000 0.400627 1.628369
jun.2011 0.237986 0.937523 0.184405 0.000000 0.372277 1.547786
may.2011 0.343295 1.120240 0.232501 0.000000 0.471258 1.934793
apr.2011 0.339787 0.983201 0.191466 0.000000 0.385004 1.707992
mar.2011 0.341432 1.012339 0.197730 0.000000 0.399623 1.753394
feb.2011 0.334578 0.961801 0.187857 0.000000 0.377310 1.673689
jan.2011 0.382348 1.063992 0.219938 0.000000 0.436323 1.882663
2010 5.091421 11.891240 2.324059 0.000000 4.658466 21.641127
dec.2010 0.479371 1.070061 0.210706 0.000000 0.421779 1.971211
nov.2010 0.415904 1.112532 0.223444 0.000000 0.445387 1.973823
oct.2010 0.427876 1.137253 0.227697 0.000000 0.454738 2.019867
sep.2010 0.326230 0.744836 0.142563 0.000000 0.285241 1.356307
aug.2010 0.341182 0.574588 0.112131 0.000000 0.223454 1.139224
jul.2010 0.472127 1.041059 0.210309 0.000000 0.421476 1.934662
jun.2010 0.412324 1.057128 0.212659 0.000000 0.426313 1.895765
may.2010 0.475946 1.044406 0.204511 0.000000 0.411133 1.931485
apr.2010 0.408280 0.942745 0.186799 0.000000 0.375647 1.726672
mar.2010 0.444424 1.076533 0.201418 0.000000 0.406878 1.927835
feb.2010 0.420618 1.012680 0.194253 0.000000 0.391041 1.824339
jan.2010 0.467139 1.077419 0.197569 0.000000 0.395379 1.939937
2009 5.729326 12.319098 2.258462 0.000000 4.553701 22.602125
2008 5.948763 11.416920 1.999613 0.000000 4.022466 21.388149
2007 6.793289 11.441035 2.063742 0.000000 4.159661 22.393985
2006 4.836224 9.769862 1.797611 2.209193 3.608942 20.424221
2005 4.637039 10.513223 1.841684 3.350519 3.638852 22.139633
2004 5.658061 10.203367 1.773825 3.852543 3.487932 23.201903
2003 6.943702 10.073247 1.772096 4.329024 3.526422 24.872395
2002 8.231727 7.247312 1.141344 2.592301 2.224499 20.295839
2001 8.319969 3.891718 0.643947 0.681434 1.306401 14.199522
2000 7.837370 0.523029 0.043597 0.097731 0.086017 8.544147
1999 3.900856 0.000000 0.000000 0.000000 0.000000 3.900856

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 62.059416 226.619454 33.764506 322.443376 5.684536
2011 1.231690 16.384890 2.339292 19.955872 0.657233
nov.2011 0.128976 1.516259 0.201704 1.846939 0.058233
oct.2011 0.149012 1.640183 0.198855 1.988050 0.065783
sep.2011 0.151781 1.613883 0.202132 1.967796 0.071608
aug.2011 0.105845 1.453856 0.206046 1.765747 0.043558
jul.2011 0.000000 1.076499 0.247207 1.323706 0.023171
jun.2011 0.000000 1.027901 0.237986 1.265887 0.022202
may.2011 0.123270 1.609716 0.220024 1.953010 0.069383
apr.2011 0.138953 1.576513 0.200834 1.916300 0.074455
mar.2011 0.148501 1.643664 0.192930 1.985095 0.076569
feb.2011 0.134430 1.524091 0.200148 1.858669 0.072789
jan.2011 0.150922 1.702325 0.231426 2.084673 0.079482
2010 2.167664 20.189455 2.697799 25.054918 0.916572
dec.2010 0.163420 1.760917 0.240387 2.164724 0.093289
nov.2010 0.165342 1.730708 0.250556 2.146606 0.086739
oct.2010 0.171436 1.729574 0.236239 2.137249 0.078787
sep.2010 0.164002 1.357521 0.162228 1.683751 0.068189
aug.2010 0.183109 1.229771 0.115833 1.528713 0.067365
jul.2010 0.193288 1.756296 0.237606 2.187190 0.075974
jun.2010 0.178757 1.772505 0.229247 2.180509 0.077815
may.2010 0.190764 1.834444 0.262155 2.287363 0.078690
apr.2010 0.186359 1.678175 0.216856 2.081390 0.071241
mar.2010 0.195588 1.840708 0.248079 2.284375 0.078199
feb.2010 0.178928 1.673506 0.236227 2.088661 0.069141
jan.2010 0.196671 1.825330 0.262386 2.284387 0.071143
2009 2.589323 21.413730 2.998250 27.001303 0.875661
2008 2.961133 21.694066 2.987628 27.642827 0.677041
2007 3.621460 21.661462 3.171827 28.454749 0.551775
2006 3.959422 20.581181 3.085996 27.626599 0.437669
2005 4.637039 24.221198 3.940707 32.798944 0.438080
2004 5.658061 24.527983 4.613557 34.799601 0.408705
2003 6.943702 21.769092 4.557984 33.270778 0.294597
2002 8.231727 16.105561 2.592301 26.929589 0.197577
2001 8.319969 10.372769 0.681434 19.374172 0.136425
2000 7.837370 5.727802 0.097731 13.662903 0.093201
1999 3.900856 1.970265 0.000000 5.871121 0.000000

Exploration wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
6406/3-3 1986.08.04 1986.10.26 526-L APPRAISAL P&A SHOWS
6407/2-2 1983.05.17 1983.07.31 375-L APPRAISAL P&A GAS/CONDENSATE
6407/2-3 1986.11.07 1987.01.23 531-L APPRAISAL P&A GAS/CONDENSATE
6506/11-4 S 1996.02.11 1996.06.06 839-L APPRAISAL RE-CLASS TO DEV OIL
6506/11-5 S 1996.09.10 1996.11.10 859-L APPRAISAL RE-CLASS TO DEV OIL/GAS
6506/12-1 1984.08.16 1985.02.06 430-L WILDCAT P&A GAS/CONDENSATE
6506/12-3 1985.03.02 1985.07.17 456-L WILDCAT P&A OIL/GAS
6506/12-5 1985.10.17 1986.03.27 485-L APPRAISAL P&A OIL
6506/12-6 1986.03.31 1986.08.02 509-L APPRAISAL P&A GAS/CONDENSATE
6506/12-7 1987.05.04 1987.08.12 544-L APPRAISAL P&A GAS/CONDENSATE
6506/12-8 1988.06.04 1988.08.30 579-L APPRAISAL P&A OIL/GAS
6506/12-9 S 1993.04.04 1993.09.10 760-L APPRAISAL P&A OIL/GAS
6506/12-10 1995.04.21 1995.06.26 807-L APPRAISAL P&A SHOWS
6506/12-10 A 1995.06.27 1995.12.11 817-L APPRAISAL P&A OIL/GAS
6506/12-11 S 1996.06.08 1996.09.07 849-L APPRAISAL P&A OIL
6506/12-11 SR 1996.11.12 1997.02.01 849-L2 APPRAISAL RE-CLASS TO DEV OIL
6506/12-12 S 2009.06.01 2009.08.06 1256-L WILDCAT P&A OIL/GAS
6506/12-12 A 2009.08.06 2009.09.02 1271-L APPRAISAL RE-CLASS TO DEV OIL/GAS
6507/11-1 1981.09.13 1981.12.10 301-L WILDCAT P&A GAS/CONDENSATE
6507/11-3 1985.06.03 1985.08.15 469-L APPRAISAL P&A OIL/GAS
6507/11-5 S 1997.09.05 1997.10.28 904-L APPRAISAL RE-CLASS TO DEV OIL/GAS
21 wellbore(s)

Development wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
6407/2-Z-3 H 2001.07.09 2001.07.23 1971-P PRODUCTION PRODUCING GAS
6506/11-E-3 H 2000.07.17 2000.09.08 1788-P INJECTION INJECTING GAS
6506/11-F-2 H 1999.06.07 1999.07.31 1597-P PRODUCTION PRODUCING GAS
6506/11-F-3 H 2012.01.26 3439-P PRODUCTION
6506/11-F-4 H 1996.02.11 1996.06.06 1519-P INJECTION INJECTING GAS
6506/11-G-1 H 1996.09.10 1996.11.10 1521-P INJECTION INJECTING GAS
6506/11-G-3 H 1997.04.23 1997.07.10 1298-P INJECTION INJECTING GAS
6506/11-G-4 H 1997.07.10 1998.11.28 1335-P INJECTION INJECTING GAS
6506/12-H-1 H 2000.10.28 2000.12.04 1842-P PRODUCTION PRODUCING GAS
6506/12-H-3 H 2000.09.15 2000.10.28 1813-P PRODUCTION PRODUCING GAS
6506/12-H-4 H 2001.07.26 2001.08.21 1988-P PRODUCTION PRODUCING GAS
6506/12-I-1 H 1998.01.18 1998.10.25 1359-P PRODUCTION PRODUCING OIL
6506/12-I-1 AH 2008.06.22 2008.09.16 2896-P PRODUCTION PRODUCING OIL
6506/12-I-2 H 1999.04.09 1999.05.19 1567-P PRODUCTION PRODUCING OIL
6506/12-I-3 H 1998.05.22 1999.03.02 1455-P PRODUCTION PRODUCING OIL
6506/12-I-4 H 1998.10.25 1998.12.02 1520-P PRODUCTION PRODUCING OIL
6506/12-J-1 H 2007.04.17 2007.08.01 2854-P PRODUCTION PRODUCING OIL
6506/12-J-2 H 1999.08.24 1999.09.24 1630-P PRODUCTION PRODUCING GAS
6506/12-J-3 H 1999.09.24 1999.11.02 1631-P PRODUCTION CLOSED OIL
6506/12-J-4 H 2000.12.09 2001.01.17 1843-P PRODUCTION PRODUCING OIL
6506/12-K-1 H 1998.07.24 1998.09.05 1488-P INJECTION INJECTING GAS
6506/12-K-2 H 1997.08.21 1999.07.03 1339-P INJECTION INJECTING GAS
6506/12-K-3 H 1997.06.24 1998.06.12 1358-P INJECTION INJECTING GAS
6506/12-K-4 H 2011.04.14 2011.06.26 3337-P PRODUCTION SUSP.AT TD
6506/12-L-1 H 1997.04.12 1997.06.26 1299-P PRODUCTION PRODUCING OIL
6506/12-L-2 H 1997.06.28 1998.01.12 1329-P PRODUCTION PLUGGED NOT AVAILABLE
6506/12-L-2 AH 1999.03.02 1999.04.06 1541-P PRODUCTION PRODUCING OIL
6506/12-L-3 H 1998.07.13 1998.08.14 1474-P PRODUCTION PRODUCING OIL
6506/12-L-4 H 1999.01.04 1999.02.24 1554-P PRODUCTION PRODUCING OIL
6506/12-M-1 H 2001.01.18 2001.02.23 1887-P PRODUCTION PRODUCING/INJECTING OIL
6506/12-M-2 H 2001.09.17 2001.10.20 2014-P PRODUCTION PRODUCING/INJECTING OIL/GAS
6506/12-M-2 AH 2006.02.03 2006.04.02 2287-P PRODUCTION PRODUCING/INJECTING OIL/GAS
6506/12-M-3 H 2000.04.10 2000.06.10 1745-P PRODUCTION PRODUCING/INJECTING OIL/GAS
6506/12-M-4 H 2002.03.15 2002.04.30 2080-P PRODUCTION PRODUCING/INJECTING OIL/GAS
6506/12-N-1 H 2004.01.20 2004.05.08 2365-P PRODUCTION CLOSED OIL
6506/12-NB-1 H 2009.08.06 2009.09.02 3415-P PRODUCTION SUSP.AT TD OIL/GAS
6506/12-N-2 H 2001.08.23 2001.10.11 1996-P PRODUCTION SUSP.AT TD OIL
6506/12-N-3 H 2001.05.01 2001.06.06 1931-P PRODUCTION CLOSED OIL
6506/12-N-4 H 2000.05.07 2000.06.17 1741-P PRODUCTION PRODUCING OIL
6506/12-P-1 H 1998.10.20 1998.11.22 1484-P PRODUCTION PLUGGED OIL
6506/12-P-1 AH 2011.07.21 2011.09.04 3378-P OBSERVATION PLUGGED
6506/12-P-1 BH 2011.09.05 2011.09.30 3379-P PRODUCTION SUSP.AT TD
6506/12-P-2 H 1998.02.17 1998.04.12 1423-P PRODUCTION PRODUCING OIL
6506/12-P-3 H 1997.08.07 1997.11.09 1326-P PRODUCTION PLUGGED NOT AVAILABLE
6506/12-P-3 AH 1997.11.09 1997.12.20 1327-P PRODUCTION PRODUCING OIL
6506/12-P-4 H 2001.08.23 2001.09.15 2006-P PRODUCTION PLUGGED OIL
6506/12-P-4 AH 2009.06.26 2009.08.09 3113-P PRODUCTION SUSP.AT TD OIL
6506/12-Q-1 H 2006.05.27 2006.07.16 2703-P OBSERVATION PLUGGED
6506/12-Q-1 AY1H 2006.07.17 2006.08.13 2704-P1 PRODUCTION PRODUCING OIL
6506/12-Q-1 AY2H 2006.08.15 2006.10.03 2704-P2 PRODUCTION PRODUCING OIL
6506/12-Q-2 H 2004.05.03 2004.06.30 2424-P OBSERVATION PLUGGED NOT APPLICABLE
6506/12-Q-2 AH 2004.07.01 2004.07.28 2425-P PRODUCTION PRODUCING OIL
6506/12-Q-3 H 2005.08.26 2005.10.16 2598-P OBSERVATION PLUGGED NOT APPLICABLE
6506/12-Q-3 AH 2005.10.17 2005.12.24 2599-P PRODUCTION PRODUCING OIL
6506/12-Q-4 H 2006.11.03 2007.01.13 2782-P OBSERVATION PLUGGED
6506/12-Q-4 AY1H 2007.01.14 2007.03.26 2783-P1 PRODUCTION PRODUCING OIL
6506/12-Q-4 AY2H 2007.03.27 2007.05.28 2783-P2 PRODUCTION PRODUCING OIL
6506/12-Q-5 Y1H 2009.08.27 2009.11.11 2784-P1 PRODUCTION PRODUCING GAS/CONDENSATE
6506/12-Q-5 Y2H 2009.11.12 2009.12.20 2784-P2 PRODUCTION PRODUCING GAS/CONDENSATE
6506/12-R-1 H 1997.02.01 1997.04.03 1259-P INJECTION INJECTING GAS
6506/12-R-2 H 1998.06.16 1998.07.22 1470-P INJECTION INJECTING GAS
6506/12-R-3 Y1H 2007.07.06 2008.07.25 2864-P1 INJECTION INJECTING GAS
6506/12-R-3 Y2H 2008.07.26 2008.09.17 2864-P2 INJECTION INJECTING GAS
6506/12-R-4 H 1997.12.25 1999.04.09 1387-P INJECTION INJECTING GAS
6506/12-S-1 H 1997.10.30 1998.01.03 1355-P OBSERVATION PLUGGED NOT APPLICABLE
6506/12-S-1 AH 1998.01.04 1999.05.29 1356-P PRODUCTION PRODUCING OIL
6506/12-S-2 H 1998.04.08 1999.02.09 1432-P PRODUCTION PRODUCING OIL
6506/12-S-3 H 1998.08.17 1998.10.21 1490-P PRODUCTION PRODUCING OIL
6506/12-S-4 H 2001.02.25 2001.04.14 1906-P OBSERVATION PLUGGED NOT APPLICABLE
6506/12-S-4 AH 2001.04.14 2001.04.29 1907-P PRODUCTION PRODUCING OIL
6507/11-X-1 H 1999.12.08 2000.01.05 1660-P PRODUCTION PRODUCING GAS
6507/11-X-2 H 2000.01.05 2000.01.29 1661-P PRODUCTION SUSP.AT TD GAS
6507/11-X-3 H 2000.06.30 2000.07.15 1689-P PRODUCTION PRODUCING GAS
6507/11-X-4 H 2000.01.31 2000.03.17 1690-P PRODUCTION PLUGGED GAS
6507/11-X-4 AH 2001.01.24 2001.02.23 1779-P PRODUCTION PRODUCING GAS
6507/11-Y-1 H 1998.09.08 2000.01.28 1496-P PRODUCTION PRODUCING GAS
6507/11-Y-2 H 1998.09.26 1998.10.18 2199-P PRODUCTION PRODUCING GAS
6507/11-Y-3 H 2000.01.03 2000.02.19 1522-P PRODUCTION PRODUCING GAS
6507/11-Y-4 H 1999.11.15 2000.01.03 1651-P PRODUCTION PRODUCING GAS
79 wellbore(s)

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