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Field: VIGDIS

General information

Current activity status:	PRODUCING
Discovery wellbore:	34/7-8
Discovery year:	1986
Discoveries included:	34/7-23 S 34/7-34

Description Norwegian

Development

Vigdis is an oil field located between the Snorre and Gullfaks fields in the Tampen area in the northern part of the North Sea. The water depth in the area is 280 metres. The field comprises several discoveries, and has been developed with subsea templates connected to Snorre A. The wellstream is routed to Snorre A through two flow lines. Injection water is transported by pipeline from Snorre A. Oil from Vigdis is processed in a dedicated processing module on Snorre A.

Reservoir

The reservoir in the Vigdis Brent deposit consists of Middle Jurassic sandstones of the Brent Group, while the Vigdis Øst deposit has reservoirs in Lower Jurassic and Upper Triassic sandstones of the Statfjord Formation. The Borg Nordvest deposit has reservoir in Upper Jurassic intra-Draupne sandstones. The reservoirs are at a depth of 2 200 – 2 600 metres.

Recovery strategy

Production is based on partial pressure maintenance using water injection. Parts of the reservoirs are affected by the pressure blowdown of the Statfjord field, so water injection is used to counteract the effect.

Transport

Stabilised oil from Vigdis is sent in a pipeline from Snorre A to Gullfaks A for storage and export. The gas from Vigdis is used for injection at Snorre.

Status

The operator is evaluating means to improve recovery from Vigdis. The discovery 34/7-34, northeast of Vigdis, proved new resources that can be tied to Vigdis. The operator is working towards a development of the discovery 34/7-34 Vigdis Nordøst. It has been decided to increase the water injection on Vigdis with water supplied from Statfjord and expected start up is summar 2011. Low pressure production was implemented in 2009. The capacity for produced water is upgraded and it is being evaluated if gas alternating water injection (WAG) is feasible for Vigdis.

Activity status history

Activity status	From date	To date
PDO APPROVED	16.12.1994	28.01.1997
PRODUCING	28.01.1997

Current owner(s)

Production License: 089

The field extends into

Block(s)	Production licence(s)
34/7	089

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]
58.70	1.40	1.00	0.00	11.00	0.00	0.20	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	49.514686	1.507286	0.865421	1.668142	52.690114
2011	1.817110	0.130830	0.053998	0.105059	2.052999
nov.2011	0.219461	0.006780	0.002929	0.005645	0.231886
oct.2011	0.185524	0.008667	0.004403	0.008336	0.202527
sep.2011	0.034915	0.006633	0.002910	0.005603	0.047151
aug.2011	0.091091	0.006387	0.002398	0.004706	0.102184
jul.2011	0.171327	0.007685	0.002925	0.005766	0.184778
jun.2011	0.174550	0.006614	0.002377	0.004681	0.185845
may.2011	0.194617	0.009125	0.003212	0.006350	0.210092
apr.2011	0.205942	0.000000	0.001853	0.003488	0.209430
mar.2011	0.186039	0.021556	0.008926	0.017530	0.225125
feb.2011	0.155753	0.042631	0.016637	0.032338	0.230722
jan.2011	0.197891	0.014752	0.005428	0.010616	0.223259
2010	1.970538	0.120370	0.042239	0.080813	2.171721
dec.2010	0.193802	0.011433	0.003617	0.007146	0.212381
nov.2010	0.190542	0.005016	0.001538	0.003043	0.198601
oct.2010	0.222347	0.005657	0.001794	0.003500	0.231504
sep.2010	0.037927	0.004860	0.001638	0.003208	0.045995
aug.2010	0.003455	0.000000	0.000000	0.000000	0.003455
jul.2010	0.216182	0.000210	0.000071	0.000140	0.216532
jun.2010	0.131521	0.006251	0.002104	0.004150	0.141922
may.2010	0.221881	0.015907	0.006312	0.011977	0.249765
apr.2010	0.117657	0.009943	0.003128	0.005947	0.133547
mar.2010	0.193813	0.019738	0.006283	0.011904	0.225455
feb.2010	0.215094	0.019838	0.007620	0.014414	0.249346
jan.2010	0.226317	0.021517	0.008134	0.015384	0.263218
2009	2.632935	0.199310	0.073570	0.141860	2.974105
2008	3.068580	0.215144	0.092908	0.179952	3.463676
2007	3.277006	0.209092	0.151770	0.292983	3.779081
2006	3.758253	0.217328	0.170335	0.328108	4.303689
2005	3.690920	0.187435	0.118232	0.228227	4.106582
2004	3.587048	0.189676	0.134811	0.258153	4.034877
2003	3.361649	0.038101	0.027558	0.052987	3.452737
2002	3.052592	0.000000	0.000000	0.000000	3.052592
2001	3.670211	0.000000	0.000000	0.000000	3.670211
2000	4.198044	0.000000	0.000000	0.000000	4.198044
1999	5.108834	0.000000	0.000000	0.000000	5.108834
1998	4.724158	0.000000	0.000000	0.000000	4.724158
1997	1.596808	0.000000	0.000000	0.000000	1.596808

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	49.522367	4.299913	53.822280	28.213452
2011	1.817047	0.176099	1.993146	3.361710
nov.2011	0.219461	0.023431	0.242892	0.367646
oct.2011	0.185524	0.019016	0.204540	0.309438
sep.2011	0.034915	0.003130	0.038045	0.085144
aug.2011	0.091091	0.010597	0.101688	0.170697
jul.2011	0.171327	0.015510	0.186837	0.423794
jun.2011	0.174550	0.015552	0.190102	0.408736
may.2011	0.194618	0.017337	0.211955	0.378804
apr.2011	0.205942	0.017383	0.223325	0.325208
mar.2011	0.185975	0.017091	0.203066	0.363084
feb.2011	0.155753	0.018106	0.173859	0.241933
jan.2011	0.197891	0.018946	0.216837	0.287226
2010	1.970519	0.207712	2.178231	2.549202
dec.2010	0.193802	0.019519	0.213321	0.254152
nov.2010	0.190542	0.021031	0.211573	0.245392
oct.2010	0.222347	0.025095	0.247442	0.243230
sep.2010	0.037927	0.004012	0.041939	0.034542
aug.2010	0.003455	0.000404	0.003859	0.004136
jul.2010	0.216182	0.023704	0.239886	0.298517
jun.2010	0.131521	0.012309	0.143830	0.248097
may.2010	0.221881	0.023273	0.245154	0.275788
apr.2010	0.117657	0.012757	0.130414	0.132792
mar.2010	0.193852	0.020548	0.214400	0.246923
feb.2010	0.215082	0.022707	0.237789	0.248413
jan.2010	0.226271	0.022353	0.248624	0.317220
2009	2.632896	0.271630	2.904526	2.867553
2008	3.068580	0.324994	3.393574	2.413906
2007	3.276566	0.353210	3.629776	2.612033
2006	3.758253	0.410289	4.168542	1.872861
2005	3.690920	0.361749	4.052669	1.990846
2004	3.586988	0.375623	3.962611	2.333507
2003	3.361649	0.272150	3.633799	3.172946
2002	3.052592	0.196319	3.248911	1.628030
2001	3.670211	0.256916	3.927127	2.284377
2000	4.198044	0.293864	4.491908	1.126481
1999	5.106448	0.357495	5.463943	0.000000
1998	4.724159	0.330983	5.055142	0.000000
1997	1.607495	0.110880	1.718375	0.000000

Exploration wellbore(s)

Name	Entry date	Completion date	Drill permit	WB purpose	WB status	WB contents
34/7-8	1986.02.05	1986.04.11	503-L	WILDCAT	P&A	OIL
34/7-13	1988.02.19	1988.04.13	572-L	APPRAISAL	P&A	OIL
34/7-16	1990.06.28	1990.08.13	640-L	APPRAISAL	SUSP.REENTERED LATER	OIL
34/7-16 R	1990.09.04	1990.10.15	640-L2	APPRAISAL	SUSP.REENTERED LATER	OIL
34/7-16 R2	1994.06.23	1994.07.05	640-L3	APPRAISAL	P&A	OIL
34/7-17 A	1991.04.07	1991.05.04	677-L	APPRAISAL	P&A	OIL/GAS
34/7-17	1991.02.25	1991.04.07	668-L	APPRAISAL	P&A	SHOWS
34/7-19	1991.09.24	1991.12.27	698-L	APPRAISAL	SUSP.REENTERED LATER	OIL
34/7-19 R	1994.07.06	1994.07.12	698-L2	APPRAISAL	P&A	OIL
34/7-23 S	1994.02.22	1994.04.03	783-L	WILDCAT	P&A	OIL
34/7-23 A	1994.04.08	1994.05.20	788-L	APPRAISAL	P&A	OIL
34/7-24 S	1995.02.25	1995.03.24	801-L	APPRAISAL	P&A	SHOWS
34/7-31 A	2001.04.13	2001.04.25	1002-L	APPRAISAL	P&A	OIL
34/7-34	2009.02.14	2009.03.10	1210-L	WILDCAT	P&A	OIL
34/7-34 A	2009.03.10	2009.03.20	1236-L	APPRAISAL	P&A	OIL
15 wellbore(s)

Development wellbore(s)

Name	Entry date	Completion date	Drill permit	WB purpose	WB status	WB contents
34/7-B-1 H	1997.02.21	1997.04.08	1265-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/7-B-1 AH	1997.05.18	1997.06.17	1313-P	PRODUCTION	PRODUCING	OIL
34/7-B-2 H	1997.04.09	1997.10.14	1301-P	PRODUCTION	PRODUCING	OIL
34/7-B-3 H	2000.01.05	2000.05.28	1625-P	PRODUCTION	PRODUCING	OIL
34/7-B-4 H	2000.06.04	2000.08.10	1754-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/7-B-4 AH	2000.08.11	2000.09.28	1755-P	PRODUCTION	PRODUCING	OIL
34/7-C-1 H	1996.01.17	1996.12.30	1113-P	PRODUCTION	PRODUCING	OIL
34/7-C-2 H	1995.11.26	1996.12.04	1090-P	PRODUCTION	PLUGGED	NOT AVAILABLE
34/7-C-2 AH	2001.07.02	2001.10.16	1965-P	PRODUCTION	PRODUCING	OIL
34/7-C-3 H	1996.01.23	1996.12.10	1123-P	PRODUCTION	PLUGGED	NOT AVAILABLE
34/7-C-3 AH	2001.12.21	2002.02.01	2056-P	PRODUCTION	PRODUCING	OIL
34/7-C-4 H	1999.06.14	1999.08.28	1571-P	PRODUCTION	PRODUCING	OIL
34/7-C-5 H	2004.03.08	2004.04.14	2400-P	OBSERVATION	PLUGGED	NOT APPLICABLE
34/7-C-5 AH	2004.04.15	2004.05.18	2401-P	PRODUCTION	SUSP.AT TD	OIL
34/7-D-1 H	2003.05.04	2003.06.05	2279-P	PRODUCTION	PRODUCING	OIL
34/7-D-2 H	2008.07.01	2008.08.06	2980-P	OBSERVATION	PLUGGED
34/7-D-2 AH	2008.08.07	2008.09.13	2996-P	PRODUCTION	PRODUCING	OIL
34/7-D-3 H	2003.03.17	2003.05.03	2256-P	PRODUCTION	PRODUCING	OIL
34/7-D-4 H	2005.06.06	2005.07.20	2519-P	PRODUCTION	PLUGGED	NOT AVAILABLE
34/7-D-4 AH	2005.07.21	2006.03.25	2631-P	PRODUCTION	SUSP.AT TD
34/7-E-1 H	2001.04.10	2001.05.19	1818-P	INJECTION	INJECTING	WATER
34/7-E-2 H	1998.04.28	1998.06.22	1444-P	INJECTION	INJECTING	WATER
34/7-E-3 H	1999.01.07	1999.03.23	1536-P	INJECTION	INJECTING	WATER
34/7-E-4 H	2002.05.06	2002.06.13	2106-P	INJECTION	INJECTING	WATER
34/7-E-5 H	2004.07.02	2004.08.26	2436-P	INJECTION	INJECTING	WATER
34/7-F-1 H	2004.01.05	2004.02.23	2361-P	INJECTION	INJECTING	WATER
34/7-F-2 H			2801-P	INJECTION	PREDRILLED
34/7-F-3 H	2003.06.20	2003.12.31	2297-P	INJECTION	INJECTING	WATER
34/7-F-3 AH			2308-P	INJECTION
34/7-F-4 H	2007.01.24	2007.03.27	2803-P	INJECTION	SUSPENDED
34/7-G-1 H	2007.08.27	2007.09.21	2839-P	INJECTION	INJECTING	WATER
34/7-G-2 H	2008.04.11	2008.06.23	2840-P	INJECTION	INJECTING	WATER
34/7-G-3 H	2007.04.24	2007.12.23	2841-P	PRODUCTION	PRODUCING	OIL
34/7-G-4 H	2009.03.23	2009.04.14	2842-P	OBSERVATION	PLUGGED
34/7-G-4 AH	2009.04.15	2009.04.20	3083-P	OBSERVATION	PLUGGED
34/7-G-4 BH	2009.04.20	2009.06.13	3084-P	PRODUCTION	PLUGGED	OIL
34/7-G-4 CH	2012.01.15		3436-P	PRODUCTION
37 wellbore(s)