K13 gas fields

Last updated
K13 gas fields
CountryNetherlands
RegionSouthern North Sea
Location/blocksK13
Offshore/onshoreoffshore
Coordinates53°13’06”N 03°13’14”E
OperatorPennzoil, Wintershall
Field history
Discovery1972
Start of production1975
Production
Producing formationsBunter sands and Rotliegendes

The K13 gas fields were major natural gas producing fields in the Netherlands sector of the North Sea, about 130 km west of Den Helder. The fields started producing gas in 1975 but are no longer operational except for one installation used as a riser platform.

Contents

The fields

The K13 gas fields are located in the Southern North Sea. The K13 A field was discovered in 1972, followed by the B field in 1973, the E field in 1976 and the F field in 1977. [1] The gas reservoirs have the following properties: [1]

K13 field typical gas properties
K13–AK13–BK13–CK13–D
Producing horizonMiddle Bunter sand (Triassic)Middle Bunter sand (Triassic) Rotliegendes sandstone (Permian)Rotliegendes sandstone (Permian)
Depth, metres1,5001,3002,6002,500

Development

The K13 reservoirs were developed by a number of offshore installations across the K13 Block. The K13-A complex was the hub of the field, it received gas from its bridge-linked riser platform and from K13 Block satellite platforms. The K13–C installation received gas from platform K10–B. [1]

K13 Field Offshore installations
FieldCoordinatesWater depthPlatformFunctionTypeLegsWell slotsInstalled (jacket & topsides)Production startProduction to
K13–A53°13’06”N 03°13’14”E28K13–A WellheadDrilling and wellheadSteel jacket49September 1974, October 1975February 1976K13–A Production via bridge
28K13–A ProductionProduction, accommodationSteel jacket80May and October 1975February 1975Balgzand
K13–B53°15’56”N 03°06’57”E25K13–B SatelliteSatelliteSteel jacket46August 1976July 1977K13–A
K13–C24K13–C WellheadDrilling and wellheadSteel jacket49September 1977, July 1978October 1978K13–C Production via bridge
24K13–C ProductionProduction, accommodationSteel jacket60April and July 1978October 1978K13–A
K13–D26K13–D SatelliteSatelliteSteel jacket46April and July 1978October 1978K13–C


The K13-C complex also received gas from K10-B.

The pipelines in the field were: [1]

K13 Field pipelines
StartEndLength, kmDiameter, inchesFluid
K13–ABalgzand129.636Gas
K13–BK13–A8.710Gas
K13–BK13–A8.72Methanol
K13–CK13–A10.320Gas
K13–DK13–C3.210Gas


The main 36” gas pipeline had a capacity of 39 million cubic metres per day. [1]

Production

The process plant on K13–A comprises 2 trains each with one 3-phase separator. Gas flows through a suction scrubber to a 4,500 horse power compressor then via a filter separator to a gas/glycol contact tower. Condensate is pumped into the gas pipeline, water is discharged to the sea. [1]

The process plant on K13–C comprises 2 trains each with one 3-phase separator. Gas flows through a suction scrubber to a 4,500 horse power compressor then via a filter separator to a gas/glycol contact tower. Condensate is pumped into the gas pipeline, water is discharged to the sea. [1]

Peak production from the field was as follows (million standard cubic feet per day) in 1979: [1]

K13 Field Production
FieldProduction MMSCFD
K13–A200
K13–B100
K13–C200
K13–D130

In 1986 the K13 field produced 824.2 million cubic metres of gas. [2]

Since 1992 gas production from the Markham gas field has been routed via K13. [3] [4]

Decommissioning

In 1988 the five wells on production platform K13-D were plugged and abandoned. The same year, the topside of K13-D was moved to a new location in Netherland sector L8 becoming production platform L8-H. [5]

The K13B jacket was lifted out of the field in 1997. [6]

There is no longer any production from the original field or its satellite platforms. [7] but K13–A is used as a bypass platform to treat and transport gas from the J6-A production platform (Centrica) and the K5-A production platform (Total) via the WestGas Transport gas pipeline to Den Helder. Since 2019, K13-A is a normally unmanned platform. [5]

See also

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References

  1. 1 2 3 4 5 6 7 8 Oilfield Publications Limited (1985). The North Sea Platform Guide. Ledbury: Oilfield Publications Limited. pp. 387–401.
  2. ↑ "Natural gas and oil of the Netherlands 1986" (PDF). 1986. Retrieved 11 November 2021.
  3. ↑ Kemp, Alex (2012). The Official History of North Sea oil and Gas Volume 1. London: Routledge. p. 388. ISBN   9781138019034.
  4. ↑ "Edison Energy for the future" (PDF). edison.it. Retrieved 11 November 2021.
  5. 1 2 "Wintershall Our Assets - Production platforms, subsea wells and an onshore gas treatment facility". wintershall-noordzee.nl. Retrieved 11 November 2021.
  6. ↑ "German gas project will extend North Sea pipeline corridor". offshore-mag.com. Retrieved 11 November 2021.
  7. ↑ "Natural gas and oil of the Netherlands 2007" (PDF). 2007. Retrieved 11 November 2021.
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