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Field: OSEBERG SØR

General information

Current activity status:	PRODUCING
Discovery wellbore:	30/9-3
Discovery year:	1984
Discoveries included:	30/9-10 OSEBERG SØR 30/9-13 S OSEBERG SØR 30/9-15 OSEBERG SØR 30/9-16 K OSEBERG SØR 30/9-20 S 30/9-21 S 30/9-22 STJERNE 30/9-4 S OSEBERG SØR 30/9-5 S OSEBERG SØR 30/9-6 OSEBERG SØR 30/9-7 OSEBERG SØR 30/9-9 OSEBERG SØR

Description Norwegian

Development

Oseberg Sør is an oil field located south of Oseberg in the northern part of the North Sea. The water depth in the area is approximately 100 metres. The field has been developed with an integrated steel facility with accommodation, drilling module and first-stage separation of oil and gas. In addition, several deposits included in the Oseberg Sør field have been developed with subsea templates tied back to the Oseberg Sør facility. Final processing of oil and gas takes place on the Oseberg Field Centre. The development of the Oseberg Sør J structure was approved on 15.05.2003 and production started in November 2006.

Reservoir

Oseberg Sør consists of several deposits with Jurassic sandstone reservoirs. The reservoir depth is between 2 200 - 2 800 metres. The main reservoirs are in the Tarbert and Heather Formations. The reservoir quality is moderate.

Recovery strategy

Recovery mainly takes place by water and gas injection. In parts of the field water alternating gas injection (WAG) is beingused. Water used for injection is produced from the Utsira Formation.

Transport

The oil is transported from the Oseberg Sør facility by pipeline to the Oseberg Field Centre where it is processed and transported through Oseberg Transport System (OTS) to the Sture terminal. The gas is transported via Oseberg Gas Transport (OGT) to Statpipe.

Status

Optimal use of available gas for re-injection and a strategy for blowdown of the Oseberg Sør reservoirs are evaluated. A strategy to combine smaller prospects and discoveries into clusters large enough to trigger new infrastructure has been established. The discovery 30/9-22 (Katla) proven in 2009 is being developed with direct tie-back to the Oseberg Sør facility.

Activity status history

Activity status	From date	To date
PDO APPROVED	10.06.1997	05.02.2000
PRODUCING	05.02.2000

Current owner(s)

Business Area: OSEBERG AREA UNIT

The field extends into

Block(s)	Production licence(s)
30/12	171 B
30/9	079
30/9	104

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]
52.60	11.80	1.50	0.00	13.00	5.70	1.50	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]	Sm³o.e. [mill]
Total per nov.2011	41.441305	6.729227	48.170532
2011	1.885645	0.697201	2.582846
nov.2011	0.189316	0.098869	0.288185
oct.2011	0.173818	0.092232	0.266050
sep.2011	0.173179	0.052537	0.225716
aug.2011	0.200943	0.083491	0.284434
jul.2011	0.183170	0.052716	0.235886
jun.2011	0.151373	0.065468	0.216841
may.2011	0.106023	0.037927	0.143950
apr.2011	0.190313	0.077886	0.268199
mar.2011	0.172936	0.030800	0.203736
feb.2011	0.170442	0.050330	0.220772
jan.2011	0.174132	0.054945	0.229077
2010	2.301821	0.629196	2.931017
dec.2010	0.188599	0.063723	0.252322
nov.2010	0.186668	0.064058	0.250726
oct.2010	0.103586	0.065535	0.169121
sep.2010	0.138516	0.063906	0.202422
aug.2010	0.209598	0.053423	0.263021
jul.2010	0.177687	0.019808	0.197495
jun.2010	0.193270	0.034168	0.227438
may.2010	0.215126	0.051096	0.266222
apr.2010	0.207324	0.054810	0.262134
mar.2010	0.225302	0.051715	0.277017
feb.2010	0.218348	0.048998	0.267346
jan.2010	0.237797	0.057956	0.295753
2009	2.633840	0.613036	3.246876
2008	3.304716	0.603169	3.907885
2007	3.172608	0.668378	3.840986
2006	4.070346	0.759075	4.829421
2005	4.181690	0.713268	4.894958
2004	4.582317	0.953720	5.536037
2003	5.060274	0.895036	5.955310
2002	4.360028	0.197148	4.557176
2001	4.455970	0.000000	4.455970
2000	1.432050	0.000000	1.432050

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	41.697549	14.795703	56.493252	14.539271
2011	2.036742	1.545564	3.582306	1.542716
nov.2011	0.205086	0.199519	0.404605	0.163908
oct.2011	0.192732	0.181431	0.374163	0.155108
sep.2011	0.185231	0.142546	0.327777	0.146559
aug.2011	0.212788	0.173895	0.386683	0.142544
jul.2011	0.199522	0.136762	0.336284	0.123326
jun.2011	0.162618	0.123739	0.286357	0.107135
may.2011	0.116137	0.084257	0.200394	0.089281
apr.2011	0.206476	0.138279	0.344755	0.163368
mar.2011	0.181515	0.111971	0.293486	0.165754
feb.2011	0.185016	0.124613	0.309629	0.137002
jan.2011	0.189621	0.128552	0.318173	0.148731
2010	2.448735	1.244344	3.693079	1.715333
dec.2010	0.203723	0.138050	0.341773	0.133135
nov.2010	0.201678	0.112152	0.313830	0.109036
oct.2010	0.124370	0.091718	0.216088	0.044445
sep.2010	0.158333	0.092093	0.250426	0.096269
aug.2010	0.211688	0.096181	0.307869	0.173585
jul.2010	0.175297	0.107044	0.282341	0.135674
jun.2010	0.202081	0.082834	0.284915	0.144038
may.2010	0.225496	0.097892	0.323388	0.171488
apr.2010	0.220838	0.099138	0.319976	0.169277
mar.2010	0.240202	0.107445	0.347647	0.176660
feb.2010	0.234085	0.107777	0.341862	0.178011
jan.2010	0.250944	0.112020	0.362964	0.183715
2009	2.780792	1.107013	3.887805	1.801604
2008	3.464825	1.165060	4.629885	2.048459
2007	3.078596	1.118050	4.196646	2.122234
2006	3.969641	1.344803	5.314444	2.379059
2005	4.116778	1.344931	5.461709	1.374124
2004	4.588219	1.605813	6.194032	1.002950
2003	5.051180	1.700097	6.751277	0.326897
2002	4.338137	1.238209	5.576346	0.174465
2001	4.377784	1.091010	5.468794	0.047180
2000	1.446120	0.290809	1.736929	0.004250

Exploration wellbore(s)

Name	Entry date	Completion date	Drill permit	WB purpose	WB status	WB contents
30/9-3	1983.12.31	1984.02.26	400-L	WILDCAT	P&A	OIL
30/9-3 A	1984.02.26	1984.05.20	406-L	APPRAISAL	P&A	OIL/GAS
30/9-4 S	1984.11.22	1985.03.30	444-L	WILDCAT	P&A	OIL/GAS
30/9-5 S	1985.05.27	1985.07.19	467-L	WILDCAT	P&A	GAS
30/9-6	1987.03.08	1987.04.21	539-L	WILDCAT	P&A	OIL
30/9-7	1988.11.02	1988.12.23	592-L	WILDCAT	P&A	OIL
30/9-8	1989.07.29	1989.08.02	615-L	APPRAISAL	SUSP.REENTERED LATER	DRY
30/9-8 R	1989.08.15	1989.09.25	615-L2	APPRAISAL	P&A	OIL
30/9-9	1989.09.27	1989.11.06	621-L	WILDCAT	P&A	OIL
30/9-10	1990.07.31	1990.09.21	646-L	WILDCAT	P&A	OIL
30/9-13 S	1991.07.05	1991.10.11	688-L	WILDCAT	SUSP.REENTERED LATER	OIL/GAS
30/9-13 SR	2002.07.12	2002.07.17	688-L3	WILDCAT	P&A	OIL/GAS
30/9-14	1993.03.16	1993.05.14	756-L	APPRAISAL	P&A	OIL/GAS
30/9-15	1993.12.07	1994.01.05	773-L	WILDCAT	P&A	OIL
30/9-16	1994.06.14	1994.08.08	789-L	WILDCAT	P&A	OIL/GAS
30/9-20 S	2002.01.09	2002.02.11	1028-L	WILDCAT	P&A	OIL
30/9-21 S	2008.03.13	2008.04.30	1176-L	WILDCAT	P&A	OIL/GAS
30/9-22	2009.01.29	2009.03.10	1226-L	WILDCAT	P&A	OIL/GAS
18 wellbore(s)

Development wellbore(s)

Name	Entry date	Completion date	Drill permit	WB purpose	WB status	WB contents
30/9-F-1	2001.09.18	2002.02.21	2009-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-1 A	2002.02.25	2002.04.02	2010-P	INJECTION	INJECTING	GAS
30/9-F-2	2001.01.17	2001.01.25	1888-P	INJECTION	PLUGGED	CUTTINGS
30/9-F-2 A	2006.08.15	2006.08.24	2735-P	INJECTION	PLUGGED	CUTTINGS
30/9-F-2 B	2008.12.22	2009.01.08	3034-P	INJECTION	SUSP.AT TD
30/9-F-5	2002.08.12	2002.10.10	2146-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-5 A	2002.10.11	2002.11.19	2147-P	PRODUCTION	PRODUCING	OIL
30/9-F-6	2002.04.02	2002.05.10	2098-P	INJECTION	INJECTING	WATER
30/9-F-7	2006.09.06	2006.09.18	3375-P	OBSERVATION	PLUGGED
30/9-F-7 A	2011.07.31	2011.12.22	3376-P	PRODUCTION	SUSP.AT TD	OIL
30/9-F-8 Y1			3437-P1	PRODUCTION
30/9-F-8 Y2			3437-P2	PRODUCTION
30/9-F-9	2008.06.24	2009.03.12	2978-P	OBSERVATION	PLUGGED
30/9-F-9 AY1	2009.03.13	2010.09.15	2979-P1	PRODUCTION	SUSP.AT TD	OIL/GAS
30/9-F-9 AY2	2010.09.16	2010.10.30	2979-P2	PRODUCTION	SUSP.AT TD	OIL/GAS
30/9-F-10	2001.08.13	2001.09.17	1908-P	PRODUCTION	PRODUCING	WATER
30/9-F-11	2003.05.02	2003.05.15	2255-P	PRODUCTION	PRODUCING	WATER
30/9-F-12	2003.05.16	2003.07.16	2292-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-12 A	2004.07.03	2004.07.22	2442-P	PRODUCTION	PLUGGED	OIL
30/9-F-12 B	2004.07.23	2004.08.18	2460-P	PRODUCTION	PRODUCING	OIL
30/9-F-13	2007.02.16	2007.05.13	2793-P	OBSERVATION	PLUGGED
30/9-F-13 A	2007.08.30	2008.01.20	2794-P	PRODUCTION	PRODUCING	OIL
30/9-F-14	1999.04.08	1999.05.09	1562-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-14 A	1999.05.09	1999.05.21	1563-P	INJECTION	PLUGGED	WATER
30/9-F-14 B	2008.04.11	2008.06.21	2918-P	INJECTION	INJECTING	WATER/GAS
30/9-F-15	2000.12.19	2001.01.13	1866-P	PRODUCTION	PLUGGED	WATER
30/9-F-15 A	2004.06.15	2004.07.03	2511-P	PRODUCTION	PLUGGED	WATER
30/9-F-15 B	2008.10.20	2008.11.12	3009-P	PRODUCTION	SUSP.AT TD
30/9-F-16	2000.01.13	2000.04.19	1685-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-16 A	2000.04.19	2000.05.06	1756-P	INJECTION	PLUGGED	NOT AVAILABLE
30/9-F-17	2001.01.28	2001.05.17	1892-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-17 A	2001.05.18	2001.06.14	1893-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-17 B	2001.06.25	2001.08.10	1949-P	PRODUCTION	PRODUCING	OIL
30/9-F-18	1999.05.21	1999.07.01	1588-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-18 A	1999.12.16	2000.01.13	1589-P	PRODUCTION	PRODUCING	OIL
30/9-F-19	1999.02.13	1999.03.22	1545-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-19 A	1999.03.22	1999.04.08	1546-P	PRODUCTION	PRODUCING	OIL
30/9-F-20	1998.12.24	1999.02.13	1525-P	PRODUCTION	PRODUCING	OIL
30/9-F-21	2003.09.29	2004.01.19	2330-P	INJECTION	INJECTING	WATER/GAS
30/9-F-22	2002.11.20	2003.03.26	2198-P	PRODUCTION	PRODUCING	OIL
30/9-F-23			3381-P	PRODUCTION
30/9-F-24	2002.05.11	2002.06.26	2124-P	PRODUCTION	PRODUCING	OIL/GAS
30/9-F-24 A			2125-P
30/9-F-25	2004.08.20	2005.02.07	2457-P	PRODUCTION	PRODUCING	OIL
30/9-F-26	2003.07.22	2003.09.27	2318-P	INJECTION	PLUGGED	WATER
30/9-F-26 A	2004.03.02	2004.04.20	2512-P	INJECTION	PLUGGED	WATER
30/9-F-26 B	2011.01.11	2011.05.09	3087-P	INJECTION	SUSP.AT TD
30/9-F-27	2005.12.13	2006.03.20	2637-P	PRODUCTION	PRODUCING	OIL
30/9-F-28	2004.03.14	2004.05.01	2363-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-28 A	2004.05.15	2004.06.11	2364-P	PRODUCTION	PRODUCING	OIL
30/9-F-29 Y1	2005.07.10	2005.10.13	2569-P1	PRODUCTION	PRODUCING	OIL
30/9-F-29 Y2	2005.10.15	2005.12.12	2569-P2	PRODUCTION	PRODUCING	OIL
30/9-F-30	2005.02.04	2005.04.05	2509-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-F-30 A	2005.04.08	2005.05.18	2510-P	INJECTION	INJECTING	WATER/GAS
30/9-F-31	2006.06.13	2007.02.08	2713-P	INJECTION	INJECTING	WATER
30/9-J-11 H	2006.06.29	2006.09.19	2674-P	PRODUCTION	PLUGGED
30/9-J-11 AH	2006.09.20	2006.09.29	2771-P	PRODUCTION	PLUGGED
30/9-J-11 BH	2006.09.30	2006.10.30	2774-P	PRODUCTION	PRODUCING	OIL
30/9-J-12 H	2004.11.10	2005.10.14	2456-P	PRODUCTION	PRODUCING	OIL
30/9-J-13 H	2005.06.09	2005.07.15	2581-P	OBSERVATION	PLUGGED	NOT APPLICABLE
30/9-J-13 AH	2009.04.20	2009.05.20	2582-P	PRODUCTION	PLUGGED
30/9-J-13 BH	2009.05.20	2009.06.09	3115-P	PRODUCTION	SUSP.AT TD
30/9-J-14 H	2005.04.14	2005.06.06	2493-P	PRODUCTION	PRODUCING	OIL
30/9-J-15 H	2009.01.09	2009.03.23	3064-P	PRODUCTION	PRODUCING	OIL
30/9-J-16 H	2005.10.17	2006.02.01	2615-P	INJECTION	INJECTING	WATER
30/9-K-11 H	2001.05.23	2001.06.19	1937-P	PRODUCTION	PRODUCING	OIL
30/9-K-12 H	1999.07.06	1999.09.15	1605-P	INJECTION	INJECTING	WATER
30/9-K-13 H	1999.09.16	1999.10.26	1637-P	PRODUCTION	PRODUCING	OIL
30/9-K-14 H	1999.10.30	1999.12.08	1653-P	INJECTION	PLUGGED	NOT AVAILABLE
30/9-L-51 H	2008.06.26	2008.07.23	2935-P	OBSERVATION	PLUGGED
30/9-L-51 AH	2008.07.23	2008.09.17	2936-P	PRODUCTION	PRODUCING	OIL
30/9-L-53 H	2007.11.21	2008.01.19	2912-P	OBSERVATION	PLUGGED
30/9-L-53 AH	2008.01.20	2008.04.10	2913-P	PRODUCTION	PRODUCING	OIL
73 wellbore(s)