The K14-K18 gas fields are significant natural gas producing areas in the Netherlands sector of the North Sea, about 120 km north west of Den Helder. These five contiguous fields started producing gas in 1977 and are still operational.
The fields The K14-K18 gas fields are located in the Southern North Sea. They extend over the Netherlands Offshore Blocks K14, K15, K16, K17 and K18. The gas reservoirs have the following properties: +K14-K18 field gas reservoir parametersBlockK14K15-AK15-BK16K17K18-FBK18 GolfProducing horizonRotliegendes sandstoneRotliegendes sandstoneRotliegendes sandstoneZechstein 3 carbonatesSlochteren FormationSlochteren FormationRotliegendes sandstoneDepth, metres3,0253,3253,9002,0012,6864,2173,750Type of gasHigh calorific value (CV)Low CV & 24% CO238.19 MJ/m3, 10.05 % nitrogen34.69 MJ/m3, 10.6 % nitrogen35.8 MJ/m3, 10.79 % nitrogenRecoverable reserves424 billion cubic feet353 billion cubic feet671 billion cubic feet0.5 billion m32.3 billion m30.5 to 1.0 billion m3Discovery1970197419751987198019922005Initial operatorNederlandse Aardolie Maatschappij BV (NAM) NAMNAMELF Petroland (exploration)NAMConoco (exploration)Wintershall Noordzee BV
Development The K14-K18 reservoirs were developed over an extended period by a number of offshore installations across the five Blocks.
K14 and K15 installations The initial installations in blocks K14 and K15 were: +K14 and K15 Field Initial Offshore InstallationsInstallationK14-FA1K14-FA1-CK15-FA1K15-FB1FunctionDrilling, production, accommodationCompressionDrilling, productionDrilling, production, accommodationTypeSteel jacketSteel jacketSteel jacketSteel jacketCoordinates53°16’10”N 03°37’39”EBridge link to K14-FA153°14’53”N 03°59’41”E53°16’35”N 03°22’28”EWater depth, metres262627.426DesignerCrest / MarConDe GrootShell / CrestCrestJacket fabricationDe Groot THCDe GrootNAPMDeck fabricationDe Groot De GrootDe GrootDe GrootJacket weight, tonnes500?1,245?Legs1081010Piles1081010Deck weight, tonnes940Deck 2,250; modules 3,7501,300?Accommodation241002422Well slots9Nil69Production throughput7.4 million m3/day600 MMSCFD7.4 million m3/day10 million m3/dayInstallationFebruary 19771985December 19781982 Gas production from these platforms was to the following pipelines. +K14 and K15 pipelinesFromToLength DiameterNotesK14-FA1WGT line0.14 km24”SidetapK15-FAWGT line0.06 km24”SidetapK15-FBCallantsoog72 km24”
K14, K15 and K17 installations The fields were developed further from the mid-1980s through five satellite installations. +K14, K15 and K17 installationsInstallationK14-FB1K15-FC-1K15-FG-1K15-FK-1K17-FA-1FunctionSatelliteSatelliteSatelliteSatelliteSatelliteTypeSteel jacketSteel jacketSteel jacketSteel jacketMonotowerCoordinates53.16084 3.3135453.25382 3.7640853.30723 3.9482553.21879 3.9206253.06473 3.53866Water depth, metres26.726.12525.625.6Startup19851989199020022005 Gas from the K14-FB1 installation is routed to the K14-FA1 installation. Gas from the K15 installations is routed to the K14-FA1 installation. Gas from the K17 Monotower is routed to the K14-FB1 installation.
K18 installations The K18 Golf gas field is a military restricted zone which necessitated development by subsea satellites. +K18 Golf Field installationsInstallationK18 G1K18 G2K18 G4FunctionSatelliteSatelliteSatelliteTypeSubseaSubseaSubseaCoordinates53.0923 3.574753.0923 3.574753.1023 3.5813Water depth, metres20.927.527.5Startup201120142014 The output projection was 375.7 million normal cubic meters per year. Gas is routed to the K14-FA1 installation.
The Kotter oil field is in Block K18, however there is no export route for the gas and the K18-FB gas accumulation has not been developed.
K16 Field The K16 Field is a stranded asset with no nearby gas transport infrastructure. The field has not been developed.
See also
Helder, Helm and Hoorn oil fields Kotter and Logger oil and gas fields L4-L7 gas fields L10 gas field K13 gas field K7-K12 gas fields
References