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Field: HULDRA

General information

Current activity status: PRODUCING
Discovery wellbore: 30/2-1
Discovery year: 1982
View large picture.

Description Norwegian

Development

Huldra is a gas condensate field located north of Oseberg in the northern part of the North Sea. The water depth in the area is125 metres. The field is developed with a steel wellhead facility with a simple process plant. The facility is normally not manned and is remotely operated from Veslefrikk B, 16 kilometres away.

Reservoir

The reservoir is in Middle Jurassic sandstones of the Brent Group in a rotated fault block. The reservoir has high pressure andhigh temperature and lies at a depth of 3 500 – 3 900 metres. There are many small faults in the field, and reservoir communication is uncertain, but the production history indicates two main segments without pressure communication.

Recovery strategy

Huldra is recovered by pressure depletion. Low pressure production began in 2007 after a gas compressor was installed onthe field. The compressor will prolong the lifetime of the field by five years.

Transport

Following first stage separation, the wet gas is transported to Heimdal for further processing, whereas the condensate is transported to Veslefrikk for processing.

Status

Huldra is in the tail production phase and it is expected that the field will cease production in 2013. The partnership is evaluating options for extending the lifetime for the field.

Activity status history

Activity status From date To date
PDO APPROVED 02.02.1999 21.11.2001
PRODUCING 21.11.2001

Current owner(s)

Business Area: HULDRA UNIT

The field extends into

Block(s) Production licence(s)
30/2 051
30/3 052 B

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]
5.00 16.60 0.10 0.00 0.10 0.90 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 5.001955 16.251088 0.094764 0.000000 0.187273 21.440316
2011 0.090508 0.528194 0.000360 0.000000 0.000651 0.619353
nov.2011 0.008127 0.050028 0.000360 0.000000 0.000651 0.058806
oct.2011 0.009184 0.051204 0.000000 0.000000 0.000000 0.060388
sep.2011 0.007905 0.044644 0.000000 0.000000 0.000000 0.052549
aug.2011 0.008109 0.050238 0.000000 0.000000 0.000000 0.058347
jul.2011 0.010601 0.059643 0.000000 0.000000 0.000000 0.070244
jun.2011 0.005423 0.035424 0.000000 0.000000 0.000000 0.040847
may.2011 0.005275 0.026662 0.000000 0.000000 0.000000 0.031937
apr.2011 0.009424 0.056092 0.000000 0.000000 0.000000 0.065516
mar.2011 0.009088 0.053714 0.000000 0.000000 0.000000 0.062802
feb.2011 0.007097 0.040542 0.000000 0.000000 0.000000 0.047639
jan.2011 0.010275 0.060003 0.000000 0.000000 0.000000 0.070278
2010 0.145625 0.824197 0.000000 0.000000 0.000000 0.969822
dec.2010 0.011295 0.060918 0.000000 0.000000 0.000000 0.072213
nov.2010 0.011520 0.060511 0.000000 0.000000 0.000000 0.072031
oct.2010 0.009315 0.055113 0.000000 0.000000 0.000000 0.064428
sep.2010 0.011906 0.071277 0.000000 0.000000 0.000000 0.083183
aug.2010 0.011254 0.061037 0.000000 0.000000 0.000000 0.072291
jul.2010 0.011533 0.069798 0.000000 0.000000 0.000000 0.081331
jun.2010 0.013168 0.077923 0.000000 0.000000 0.000000 0.091091
may.2010 0.012551 0.070704 0.000000 0.000000 0.000000 0.083255
apr.2010 0.008867 0.049196 0.000000 0.000000 0.000000 0.058063
mar.2010 0.014847 0.084062 0.000000 0.000000 0.000000 0.098909
feb.2010 0.013821 0.077506 0.000000 0.000000 0.000000 0.091327
jan.2010 0.015548 0.086152 0.000000 0.000000 0.000000 0.101700
2009 0.191738 1.054903 0.000236 0.000000 0.000438 1.247079
2008 0.208886 1.083080 0.000413 0.000000 0.000772 1.292738
2007 0.168111 0.767008 0.000725 0.000000 0.001401 0.936520
2006 0.303583 1.338335 0.011168 0.000000 0.021900 1.663818
2005 0.484874 1.918775 0.021618 0.000000 0.042438 2.446087
2004 0.939126 3.081345 0.021879 0.000000 0.042909 4.063380
2003 1.182617 2.958220 0.012157 0.000000 0.023189 4.164026
2002 1.248775 2.615171 0.025324 0.000000 0.051779 3.915725
2001 0.038112 0.081860 0.000884 0.000000 0.001796 0.121768

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 0.000000 16.866104 3.895411 20.761515 3.075792
2011 0.000000 0.565832 0.080792 0.646624 0.225765
nov.2011 0.000000 0.053105 0.007510 0.060615 0.024709
oct.2011 0.000000 0.055063 0.007884 0.062947 0.025553
sep.2011 0.000000 0.048084 0.006795 0.054879 0.020903
aug.2011 0.000000 0.052979 0.007450 0.060429 0.022485
jul.2011 0.000000 0.063792 0.008992 0.072784 0.025603
jun.2011 0.000000 0.037539 0.005425 0.042964 0.012313
may.2011 0.000000 0.028594 0.004327 0.032921 0.012306
apr.2011 0.000000 0.060415 0.008693 0.069108 0.024040
mar.2011 0.000000 0.057446 0.008182 0.065628 0.019392
feb.2011 0.000000 0.044261 0.006222 0.050483 0.014627
jan.2011 0.000000 0.064554 0.009312 0.073866 0.023834
2010 0.000000 0.872924 0.131998 1.004922 0.322439
dec.2010 0.000000 0.066674 0.009674 0.076348 0.025368
nov.2010 0.000000 0.064103 0.009165 0.073268 0.022076
oct.2010 0.000000 0.057026 0.008364 0.065390 0.018019
sep.2010 0.000000 0.075020 0.010789 0.085809 0.025347
aug.2010 0.000000 0.069242 0.010442 0.079684 0.021100
jul.2010 0.000000 0.073923 0.010836 0.084759 0.024372
jun.2010 0.000000 0.082216 0.012566 0.094782 0.024224
may.2010 0.000000 0.075146 0.011625 0.086771 0.036182
apr.2010 0.000000 0.051551 0.008226 0.059777 0.028031
mar.2010 0.000000 0.087758 0.013621 0.101379 0.034837
feb.2010 0.000000 0.080766 0.012575 0.093341 0.029685
jan.2010 0.000000 0.089499 0.014115 0.103614 0.033198
2009 0.000000 1.104195 0.174378 1.278573 0.389243
2008 0.000000 1.133556 0.189726 1.323282 0.329990
2007 0.000000 0.807689 0.140021 0.947710 0.204485
2006 0.000000 1.402519 0.229807 1.632326 0.251413
2005 0.000000 1.961291 0.341837 2.303128 0.285542
2004 0.000000 3.130872 0.645902 3.776774 0.405591
2003 0.000000 3.105789 0.908660 4.014449 0.427533
2002 0.000000 2.780507 1.019071 3.799578 0.230689
2001 0.000000 0.000930 0.033219 0.034149 0.003102

Exploration wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
30/2-1 1982.05.17 1982.10.12 328-L WILDCAT SUSP.REENTERED LATER GAS/CONDENSATE
30/2-2 1984.12.19 1985.05.04 447-L APPRAISAL P&A GAS/CONDENSATE
30/2-3 1992.06.11 1992.10.05 731-L APPRAISAL P&A GAS/CONDENSATE
30/3-1 1979.06.11 1979.09.07 215-L APPRAISAL SUSP.REENTERED LATER SHOWS
30/3-1 R 1982.02.01 1982.04.26 215-L2 APPRAISAL P&A SHOWS
5 wellbore(s)

Development wellbore(s)

Name Entry date Completion date Drill permit WB purpose WB status WB contents
30/2-A-4 2000.08.10 2000.11.01 1774-P PRODUCTION PRODUCING GAS
30/2-A-5 2001.01.19 2001.02.03 1886-P PRODUCTION PRODUCING GAS
30/2-A-6 2001.07.20 2001.09.24 1977-P PRODUCTION PRODUCING GAS
30/2-A-8 2000.11.03 2001.01.19 1841-P PRODUCTION PRODUCING GAS
30/2-A-9 2001.10.01 2002.02.18 1976-P PRODUCTION PRODUCING GAS
30/2-A-11 2002.02.18 2002.04.13 2081-P PRODUCTION PRODUCING GAS
6 wellbore(s)

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