Type:
Gas
Facility:
Production
Water Depth:
40
Installed:
2006
meters
Block:
49/04a
Design:
Fixed steel
Sub Structure:
650
Topsides Wgt:
350
tonnes
tonnes
Intro
The Chiswick platform is a normally unmanned installation in the Chiswick gas field, UK Southern North Sea, commissioned in 2007. It hosts production wellheads and basic manifolds and ties back gas to the nearby Markham facilities for processing and onward export to Den Helder (Netherlands) or to UK systems.
Field
The Chiswick gas field lies in Block 49/04a of the Southern North Sea. It was developed with an NUI tied into the Markham complex, producing Rotliegend sandstone gas with export via the West Gas Transport system and linked gas processing hubs.
Facilities
Chiswick’s installation comprises a steel jacket with a small deck hosting wellheads, Xmas trees and manifold connections to subsea pipelines. There is no significant on-platform processing; fluids are exported via a pipeline (~to Markham J6A) for dehydration and conditioning before entry to export pipelines to Den Helder or UK terminals. Utility systems are minimal, including remote safety shutdown, chemical injection for flow assurance, and instrument power for control and monitoring. The platform operates unmanned with periodic maintenance visits. Structural design satisfies UKCS requirements for environmental loads; integration with the Markham hub’s SCADA enables remote operations and emergency shutdown coordination.
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