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Gorm Field

Natural gas and oilfield in the North Sea

Field	Value
name	Gorm
location_map	North Sea
coordinates
relief	yes
country	Denmark
region	North Sea
block	5504/15

offonshore	Offshore
operator	TotalEnergies
discovery	1971
start_production	1981
formations	Danian and Upper Cretaceous chalk

Gorm is a natural gas and oilfield in the Danish Sector of the North Sea. It was discovered in 1971 and is the largest oilfield exploited by Denmark. The production infrastructure consists of five bridge-linked platforms and is operated by BlueNord. The facilities include two wellhead platforms and several processing platforms. The Rolf and Dagmar fields are satellites to Gorm.

Reservoir

The reservoir properties of the Gorm field are as shown.

Property	Value
Block	5504/16
Production horizon	Upper cretaceous Danian chalk
Field delineation, km2	63
Reservoir depth, feet	6,600 to 7,200
Hydrocarbon column, feet	500
Density °API	33.5
Gas / oil ratio	1789
Sulphur content %	0.2
Porosity %	27-35
Total reserves oil, million barrels	110-600
Total reserves gas, billion cubic feet	353

Infrastructure

Installations

The installations developed for the Gorm field were as follows. The water depth at the site is 39 metres.

Platforms	Coordinates	Function	Type	Legs	Substructure weight, t	Topsides weight, t	Well slots	Installed	Production start	Production to
Gorm A	55.579105N	Drilling & wellhead	Steel jacket	4	1080	1100	9	September 1979	May 1981	Gorm C
Gorm B	55.578531N	Drilling & wellhead	Steel jacket	4	1080	945	9	December 1979	March 1982	Gorm C
Gorm C	55.579641N	Processing & accommodation (97 beds)	Steel jacket	8	3500	10,200	–	July 1980	May 1981	Gorm E
Gorm D	55.579041N	Flare tower	Steel jacket	3	750	220	–	February 1981	–
Gorm E (owned by DONG oil pipe A/S)	55.580749N	Riser and pumping	Steel jacket	4	1634	3900	–	April May 1982		Gas to Tyra (14 inch pipeline), condensate to onshore (20 inch pipeline)
Gorm F	55.578398N	Well head, processing	Steel jacket		2000	11000		1991

In 2014 there were 32 oil production wells, one gas injection well, and 14 water injection wells.

Pipelines

A number of pipelines transport fluids to and from the Gorm field. The Skjold, Rolf and Dagmar fields are satellites of Gorn

From	To	Fluid	Length, km	Diameter, inches	Note
Skjold B	Gorm F	Oil, gas & water	12	12
Skjold A	Gorm A	Oil, gas & water	11	12
Rolf	Gorm E	Oil, gas & water	17	8
Dagmar	Gorm F	Oil, gas & water	9	8
Gorm E	Rolf	Gas	17	3
Gorm F	Skjold A	Injection water	12	12
Gorm D	Skjold A	Gas	11	6
Gorm E	Tyra E	Gas	16	18
Gorm E	Fredericia shore terminal	Oil	330	20	Capacity = 270,000 barrels per day
Gorm E	CALM (see note)	Oil		12	Decommissioned
Gorm E	CALM	Oil		12	Decommissioned

Note. CALM = Catenary Anchor Leg Mooring; buoys used to load ships with oil before the export pipeline was available.

Production

The original design production rate for the process facilities on Gorm C was 60,000 barrels of oil per day (bopd). The design gas injection rate was 84 mmscfd (million standard cubic feet per day). The pumping platform Gorm C had a design throughput of 90,000 bopd.

The production strategy is to maintain reservoir pressure through water injection.

The production data for the Gorm field is shown in the following table. Production and injection numbers are cumulative rates up to 1 January 2014. About 400 oilbbl/d of crude oil from the nearby Rolf oil field are processed on the Gorm platforms.

Parameter	Value
Oil production wells	32
Gas injection wells	1
Water injection wells	14
Oil production, million m3	60.79
Gas production, billion Nm3	15.74
Produced water, million m3	80.35
Water injection, million m3	137.83
Gas injection, billion Nm3	8.16
Oil reserves, million m3	3.0
Gas reserved, billion Nm3	0.3

In 2014 the annual production was 6.3 million barrels of oil and 3,677 million standard cubic feet of gas (104 million m3 gas).

Incidents

An oil leak occurred in the field on 2 March 2011.

Dagmar and Rolf fields

The Dagmar and Rolf fields are satellites to the Gorm installations. The characteristics of the fields are as follows.

Discovered	1983	1981

The fields are developed through two offshore installations as shown.

Import, lift gas	-	17 km 3-inch pipeline from Gorm E

The oil production profile of the Dagmar and Rolf fields (in 1000 cubic metres) is as shown.

Dagmar						475	305	67	33	35	23	17	13	10	8	4	6	7	2

Dagmar	0			0															1005

References

Glennie, K. W.. (1998). "Petroleum geology of the North Sea: basic concepts and recent advances". [[Wiley-Blackwell]].
"The Gorm Centre". [[Danish Energy Agency]].
Oilfield Publications Limited. (1985). "The North Sea Platform Guide". Oilfield Publications Limited.
"Non-Technical Summary (NTS) of the Environmental and Social Impact Statement (ESIS) for the GORM project.".
(2 March 2011). "Update: Oil observed in the Danish North Sea near Maersk Oil platforms". [[Maersk Oil]].
Danish Energy Agency. (2024). "Oil and gas in Denmark 2013".
(2 March 2011). "Oil spotted on Danish North Sea Surface. Maersk halts Production from Rolf Platform". OffshoreEnergyToday.com.
Danish Energy Agency. (15 August 2016). "Oil production monthly and yearly".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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