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Field: VISUND

General information

Current activity status:	PRODUCING
Discovery wellbore:	34/8-1
Discovery year:	1986
Discoveries included:	34/8-4 S

Description Norwegian

Development

Visund is an oil field east of the Snorre field in the northern part of the North Sea. The development includes a semi- submersible integrated accommodation, drilling and processing steel facility (Visund A). The water depth is about 335 metres at Visund A. The PDO for gas export was approved on 04.10.2002. The northern part of the Visund field was developed with a subsea template, about 10 kilometres north of Visund A, but has been shut down since 2006.

Reservoir

The Visund field contains oil and gas in several tilted fault blocks with varying pressure and liquid systems. The reservoirs are in Middle Jurassic sandstones in the Brent Group, and Lower Jurassic and Upper Triassic sandstones in the Statfjord and Lunde Formations. The reservoirs lie at a depth of 2 900 - 3 000 metres.

Recovery strategy

Oil production is driven by gas injection and water alternating gas injection (WAG). Produced water is also re-injected into one of the reservoirs. Limited export of produced gas was started autumn of 2005.

Transport

The oil is sent by pipeline to Gullfaks A for storage and export with oil from the Gullfaks field. Gas is exported to the Kvitebjørn gas pipeline and on to Kollsnes, where the NGL is separated and the dry gas is further exported to the market.

Status

A challenge for the Visund field is to maintain reservoir pressure to optimise the oil recovery before gas export levels increase. The discovery 34/8-13 A (Titan) may be tied to a new development of the Visund Nord area.

Activity status history

Activity status	From date	To date
PDO APPROVED	29.03.1996	21.04.1999
PRODUCING	21.04.1999

Current owner(s)

Business Area: VISUND INSIDE

The field extends into

Block(s)	Production licence(s)
34/8	120

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]
30.40	48.70	6.10	0.00	9.40	42.80	5.70	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]	NGL [mill Sm³]	Sm³o.e. [mill]
Total per nov.2011	21.624695	6.435979	0.419955	0.663039	28.723713
2011	0.596540	0.497783	0.021697	0.032608	1.126931
nov.2011	0.073185	0.071236	0.004778	0.007529	0.151950
oct.2011	0.036764	0.045184	0.003713	0.006065	0.088013
sep.2011	0.013113	0.009744	0.000820	0.001343	0.024200
aug.2011	0.029658	0.005030	0.000330	0.000547	0.035235
jul.2011	0.009151	0.000000	0.000000	0.000000	0.009151
jun.2011	0.000000	0.000000	0.000000	0.000000	0.000000
may.2011	0.000000	0.000000	0.000000	0.000000	0.000000
apr.2011	0.035528	0.032225	0.001061	0.001519	0.069272
mar.2011	0.130878	0.117631	0.004167	0.005968	0.254477
feb.2011	0.121356	0.098186	0.002968	0.004187	0.223729
jan.2011	0.146907	0.118547	0.003860	0.005450	0.270904
2010	1.403186	1.116047	0.067675	0.106332	2.625565
dec.2010	0.149711	0.114697	0.003219	0.004454	0.268862
nov.2010	0.005694	0.008085	0.000215	0.000298	0.014077
oct.2010	0.117409	0.086381	0.002336	0.003263	0.207053
sep.2010	0.123524	0.056661	0.001553	0.002162	0.182347
aug.2010	0.118275	0.094392	0.006304	0.010166	0.222833
jul.2010	0.112155	0.118946	0.009287	0.014847	0.245948
jun.2010	0.135778	0.108932	0.007663	0.012252	0.256962
may.2010	0.138392	0.102072	0.006744	0.010679	0.251143
apr.2010	0.142898	0.106749	0.008481	0.013838	0.263485
mar.2010	0.152798	0.109063	0.007619	0.011987	0.273848
feb.2010	0.087196	0.117494	0.008065	0.012666	0.217356
jan.2010	0.119356	0.092575	0.006189	0.009720	0.221651
2009	1.563322	1.137407	0.082625	0.132958	2.833687
2008	1.724322	0.792890	0.055231	0.088682	2.605894
2007	2.250819	1.507382	0.086266	0.133107	3.891308
2006	1.210034	1.038979	0.079771	0.126546	2.375559
2005	1.116194	0.345491	0.026690	0.042806	1.504491
2004	1.862881	0.000000	0.000000	0.000000	1.862881
2003	2.020955	0.000000	0.000000	0.000000	2.020955
2002	2.458980	0.000000	0.000000	0.000000	2.458980
2001	2.536337	0.000000	0.000000	0.000000	2.536337
2000	2.252965	0.000000	0.000000	0.000000	2.252965
1999	0.628160	0.000000	0.000000	0.000000	0.628160

Gross production (Norwegian share)

Sm³o.e. = oil + gas + condensate.

Charts

	Oil [mill Sm³]	Gas [bill Sm³]	Sm³o.e. [mill]	Water [mill Sm³]
Total per nov.2011	21.627551	36.605059	58.232610	7.943168
2011	0.596542	2.138251	2.734793	0.181463
nov.2011	0.073184	0.250116	0.323300	0.012108
oct.2011	0.036763	0.113951	0.150714	0.001604
sep.2011	0.013120	0.040730	0.053850	0.000768
aug.2011	0.029660	0.097062	0.126722	0.001800
jul.2011	0.009148	0.029544	0.038692	0.000157
jun.2011	0.000000	0.000000	0.000000	0.000000
may.2011	0.000000	0.000000	0.000000	0.000000
apr.2011	0.035528	0.138193	0.173721	0.011136
mar.2011	0.130878	0.502512	0.633390	0.045683
feb.2011	0.121355	0.446605	0.567960	0.050789
jan.2011	0.146906	0.519538	0.666444	0.057418
2010	1.403215	4.579785	5.983000	0.445712
dec.2010	0.149714	0.477514	0.627228	0.057443
nov.2010	0.005694	0.010120	0.015814	0.000958
oct.2010	0.117410	0.372190	0.489600	0.038013
sep.2010	0.123548	0.406146	0.529694	0.033145
aug.2010	0.118277	0.379981	0.498258	0.038709
jul.2010	0.112156	0.344932	0.457088	0.028832
jun.2010	0.135776	0.456516	0.592292	0.041206
may.2010	0.138391	0.459515	0.597906	0.039170
apr.2010	0.142897	0.474377	0.617274	0.039629
mar.2010	0.152799	0.512494	0.665293	0.056418
feb.2010	0.087196	0.275540	0.362736	0.022226
jan.2010	0.119357	0.410460	0.529817	0.049963
2009	1.563325	4.664789	6.228114	0.364239
2008	1.724325	4.961788	6.686113	0.374240
2007	2.251876	5.313117	7.564993	0.821901
2006	1.210032	2.439067	3.649099	0.596995
2005	1.116174	1.977131	3.093305	0.296564
2004	1.862891	2.867646	4.730537	1.487020
2003	2.021059	2.597829	4.618888	1.004637
2002	2.458982	2.215256	4.674238	0.667704
2001	2.536361	1.655208	4.191569	1.121320
2000	2.252988	1.007191	3.260179	0.581373
1999	0.629781	0.188001	0.817782	0.000000

Exploration wellbore(s)

Name	Entry date	Completion date	Drill permit	WB purpose	WB status	WB contents
34/8-1	1985.11.11	1986.03.08	488-L	WILDCAT	P&A	OIL/GAS
34/8-3	1988.07.14	1988.09.14	581-L	APPRAISAL	P&A	OIL/GAS
34/8-3 A	1988.09.14	1988.10.31	589-L	APPRAISAL	P&A	OIL/GAS
34/8-4 S	1990.12.06	1991.06.09	659-L	WILDCAT	SUSP.REENTERED LATER	GAS/CONDENSATE
34/8-4 A	1992.02.18	1992.05.27	711-L	APPRAISAL	SUSP.REENTERED LATER	OIL
34/8-4 AR	2003.02.21	2003.03.07	711-L2	APPRAISAL	P&A	OIL
34/8-5	1991.02.18	1991.04.01	667-L	APPRAISAL	P&A	SHOWS
34/8-8	1992.06.30	1992.08.24	730-L	APPRAISAL	SUSP.REENTERED LATER	OIL
34/8-8 R	1993.02.16	1993.03.09	730-L2	APPRAISAL	P&A	OIL
34/8-9 S	1992.10.25	1992.12.26	746-L	APPRAISAL	P&A	OIL
34/8-10 S	1993.09.28	1993.12.09	768-L	APPRAISAL	P&A	OIL
34/8-11	1993.12.10	1994.02.08	780-L	APPRAISAL	P&A	OIL
12 wellbore(s)

Development wellbore(s)

Name	Entry date	Completion date	Drill permit	WB purpose	WB status	WB contents
34/8-A-1 H	1997.07.04	1997.07.14	1322-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/8-A-1 AH	1997.07.14	1997.09.13	1323-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/8-A-1 BH	1998.03.09	2001.01.15	1345-P	PRODUCTION	PRODUCING	OIL
34/8-A-1 CH			1414-P	PRODUCTION
34/8-A-2 H	1997.11.16	2001.12.02	1381-P	INJECTION	INJECTING	GAS
34/8-A-3 H	1998.12.20	1999.04.09	1535-P	INJECTION	PLUGGED	GAS
34/8-A-3 AH	2006.02.24	2006.07.22	2553-P	PRODUCTION	PRODUCING	GAS
34/8-A-4 H	2002.05.25	2002.06.09	2109-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/8-A-4 AH	2002.06.10	2002.08.15	2110-P	PRODUCTION	PLUGGED	OIL
34/8-A-4 BH	2006.04.10	2006.10.15	2687-P	PRODUCTION	PRODUCING	OIL
34/8-A-5 H	2000.05.05	2000.06.08	1752-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/8-A-5 AH	2000.06.09	2000.07.05	1753-P	PRODUCTION	PLUGGED	NOT AVAILABLE
34/8-A-5 BH	2000.07.06	2000.07.25	1787-P	PRODUCTION	PLUGGED	NOT AVAILABLE
34/8-A-5 CH	2000.07.26	2000.08.24	1796-P	PRODUCTION	PRODUCING	OIL
34/8-A-6 H	2005.03.05	2005.05.13	2461-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/8-A-6 AH	2005.05.14	2005.07.08	2570-P	PRODUCTION	PRODUCING	OIL
34/8-A-7 H	1997.10.06	1998.07.26	1360-P	PRODUCTION	PLUGGED	OIL
34/8-A-7 AH			1361-P
34/8-A-8 H	2001.12.03	2002.02.23	2041-P	PRODUCTION	PLUGGED	OIL
34/8-A-8 AH	2009.12.05	2010.01.31	3161-P	OBSERVATION	PLUGGED
34/8-A-8 BH	2010.03.31	2010.05.10	3162-P	PRODUCTION	SUSP.AT TD	OIL
34/8-A-9 H	1999.11.26	2000.03.08	1640-P	PRODUCTION	PLUGGED	OIL
34/8-A-9 AH	2008.03.03	2008.04.29	2922-P	PRODUCTION	SUSP.AT TD
34/8-A-10 H	2000.03.19	2000.05.04	1733-P	PRODUCTION	PLUGGED	NOT AVAILABLE
34/8-A-10 AH	2000.10.13	2000.11.27	1831-P	PRODUCTION	SUSP.AT TD	NOT APPLICABLE
34/8-A-11 H	2000.03.09	2000.03.19	1682-P	INJECTION	JUNKED	GAS
34/8-A-14 H	2008.12.27	2009.10.03	3028-P	PRODUCTION	SUSP.AT TD
34/8-A-16 H			3440-P	PRODUCTION
34/8-A-17 H	2011.03.19		3306-P	PRODUCTION
34/8-A-19 H	2004.03.01	2004.04.11	2380-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/8-A-19 AH	2004.04.13	2004.07.06	2381-P	PRODUCTION	PRODUCING	OIL
34/8-A-21 H	2002.10.11	2003.02.09	2185-P	PRODUCTION	PRODUCING	OIL
34/8-A-22 H	2003.09.13	2004.01.15	2320-P	PRODUCTION	PRODUCING	OIL
34/8-A-23 H	2001.01.18	2001.06.27	1874-P	PRODUCTION	INJECTING	GAS
34/8-A-25 H	2003.02.17	2003.03.29	2226-P	PRODUCTION	PLUGGED	NOT AVAILABLE
34/8-A-25 AH	2003.06.20	2003.08.18	2299-P	PRODUCTION	PLUGGED	OIL
34/8-A-25 BH	2007.03.08	2007.03.19	2807-P	PRODUCTION	PLUGGED	OIL
34/8-A-25 CH	2007.04.20	2007.05.15	2849-P	PRODUCTION	PLUGGED	OIL
34/8-A-25 DH	2007.05.16	2007.08.01	2855-P	PRODUCTION	SUSP.AT TD
34/8-A-26 H	2009.03.14	2009.05.24	3029-P	INJECTION	SUSP.AT TD
34/8-A-30 H	2002.02.23	2002.04.10	2085-P	INJECTION	PLUGGED	WATER
34/8-A-30 AH	2010.10.27	2011.01.29	3285-P	INJECTION	SUSP.AT TD
34/8-A-33 H	2008.07.27	2008.08.21	2962-P	INJECTION	SUSP.AT TD
34/8-B-1 H	1999.12.31	2000.01.30	1676-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/8-B-1 AH	2002.02.01	2002.04.08	1677-P	PRODUCTION	PLUGGED	OIL
34/8-B-2 H	2001.01.08	2001.05.09	1858-P	PRODUCTION	PRODUCING	OIL
46 wellbore(s)