Ekofisk BS3
Ekofisk BS3 is a fixed steel jacket wellhead platform in the Greater Ekofisk complex of the southern Norwegian North Sea. Installed in 1976, it serves as part of the subsea and topside infrastructure handling production and reservoir support functions. It is bridge-linked within the Ekofisk cluster and tied into regional export systems.
Operator: ConocoPhillips Skandinavia AS
Status: Operational
Image Source: ConocoPhillips Skandinavia AS. (All rights belong to the original owner.)
Production: Oil
Operations start: 2002
Water depth: 72 m
Country: Norway
Block: 2/4
Type: Fixed steel jacket
Field
The Ekofisk field, discovered in 1969, lies in ~70-m water depth and produces oil from chalk reservoirs (Tor and Ekofisk formations) at ~3-000-m depth. It remains one of Norway's core oil provinces with extensive infrastructure supporting both oil and associated gas production for export to continental Europe and the UK via Norpipe.
Facilities
Ekofisk BS3 functions primarily as a wellhead and subsea support structure within the Ekofisk complex. Multiple production and injection wells terminate on or near BS3, delivering hydrocarbons to manifold systems and flowlines that feed the central processing platforms such as Ekofisk J and other hub facilities. The installation includes wellheads and associated Xmas trees with control umbilicals tying back to central control rooms. BS3 facilitates fluid routing into downstream separation and treatment trains on larger topside platforms in the complex. Produced oil and gas are combined with other Ekofisk streams before export via the Norpipe oil and gas pipelines to Teesside (UK) and Emden (Germany). Utility systems on BS3 are limited due to its support role, focusing on power distribution from integrated platforms, safety shutdown equipment, corrosion protection, and subsea controls. Structural design adheres to North Sea standards for load and fatigue resistance in a mature field environment.
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