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The Dan Field
The Dan Field comprises five wellhead platforms, DA, DD, DFA, DFB and DFE, a combined wellhead and processing platform, DFF, a processing platform, DFG, two processing and accommodation platforms, DB and DFC, and two gas flare stacks, DC and DFD.
The Dan DA, DB, DC and DD platform complex is located about 3 km from the Dan F platforms, while Dan E is an unmanned satellite platform ½ km from Dan F.
At the Dan Field, there are receiving facilities for the production from the adjacent Kraka and Regnar satellite fields. The Dan Field installations also provide the Halfdan Field with injection water.
After final processing, the oil is transported to shore via the riser platform, Gorm E. The gas is pre processed at Dan F and transported to Tyra East for final processing.
Treated production water from Dan and its satellite fields is discharged into the sea.
In the Dan Field, there are accommodation facilities for 97 persons on the DFC platform and 5 persons on the DB platform.
The Kraka Field
Kraka is a satellite development to the Dan Field, with an unmanned wellhead platform of the STAR type without a helideck. The produced oil and gas are transported to the Dan F installation for processing and export ashore. Lift gas is imported from the Dan FF platform.
The Regnar Field
The Regnar Field has been developed as a satellite to the Dan Field. Production takes place in a subsea-completed well. The hydrocarbons produced are conveyed by pipeline in multiphase flow to Dan F for processing and export ashore. The well is remotely monitored and controlled from the Dan FC platform.
The Halfdan Field
The Halfdan Field comprises a combined wellhead and processing platform, HDA, one accommodation platform, HDB, one gas flare stack, HDC, and an unmanned satellite wellhead platform, HBA, without a helideck.
The Halfdan Field receives production from the Sif and Igor gas accumulations through special installations on the HBA platform. The HBA satellite platform is located about 2 km from the other Halfdan platforms, which provide it with electricity, injection water and lift gas. Production from the oil wells at HBA is conveyed through a multiphase pipeline for processing at the HDA platform, while production from the Sif/Igor gas wells is separated by a two-phase separator into a liquid and a gas flow. The liquid is piped through the multiphase pipeline to the HDA platform for processing. After separation at the HDA platform, the oil/condensate is transported to Gorm for final processing and export ashore.
Halfdan HDC and Tyra West are interconnected by a gas pipeline, which is hooked up via a riser to the gas installations on the Halfdan HBA platform. Gas pipelines also connect Halfdan HDA and Dan. The gas from the Sif/Igor installations on the HBA platform is conveyed to Tyra West, while the gas from Halfdan HDA is transported to Dan for export ashore via Tyra East or to Tyra West via Halfdan HBA for export to the Netherlands through the NOGAT pipeline.
The Dan installations supply the Halfdan Field with injection water. Treated production water from Halfdan and from Sif/Igor is discharged into the sea.
The Halfdan HDB platform has accommodation facilities for 32 persons.
Further development of the Igor gas accumulation in the Halfdan Field was approved in June 2006. The development comprises installation of a new unmanned production platform, Halfdan HCA hosting 10 wells about 7 km northeast of Halfdan HBA. The production is separated in a two-phase separator into a liquid and a gas flow stream. After separation the production is piped to Halfdan HBA for further transportation. The two new pipelines will be tied in to a new riser platform, Halfdan HBB to be installed northeast of Halfdan HBA.
To increase the processing and transportation capacity available for the Halfdan production Halfdan HBA/HBB will be connected with tha Dan FG platform in the Dan Field by a new 20" pipeline for evacuation of produced liquids from the Halfdan Field.
Finally a new accomodation platform, Halfdan HBC with 80 beds will be installed about 150 meters northeast of the Halfdan HBA platform. The 3 platforms Halfdan HBA, HBB and HBC wil be connected with a bridge.
The new Halfdan facilities, the platforms HBB, HBC and the interconnecting bridges, The new Satellit platform HCA and connecting pipelines were installed mid July 2007 and are currently under commissioning.
The HBC platform with acommodation for 80 persons has been commissioned during automn 2007.