Type:
Oil
Facility:
Production
Water Depth:
104
Installed:
1997
meters
Block:
13/22a
Design:
Fixed steel
Sub Structure:
5500
Topsides Wgt:
4900
tonnes
tonnes
Intro
The Captain bridge-linked platform is a fixed steel structure installed as part of the Captain field development in the UK Central North Sea, first produced in 1997. It is physically connected via bridge to a wellhead protector platform and the Captain FPSO, serving oil and associated gas handling duties. The installation supports processing capacity ahead of export.
Field
The Captain field, located in Block-13/22a in the Outer Moray Firth, is a large oil and gas accumulation discovered in 1977. It produces from Upper Captain sands and other reservoirs. The field was developed using a combination of platform infrastructure and an FPSO vessel to handle crude production and gas export, with enhanced oil recovery projects added later to extend life.
Facilities
The Captain bridge-linked platform operates in conjunction with a Wellhead Protection Platform (WPP) and a floating production, storage and offloading (FPSO) vessel. A network of subsea manifolds and pipelines ties production wells into the platforms. The bridge-linked platform houses separation equipment for multiphase fluids, hydrocarbon processing modules for crude and associated gas, utility systems for power and water handling, and living quarters. Crude is processed to meet export specifications aboard the FPSO which is moored nearby; shuttle tankers periodically offload stored oil for shore delivery. Associated gas is conditioned and exported via the Frigg UK Gas Transportation System to the St-Fergus Gas Terminal. Supporting systems include power generation (gas turbines), fire and gas detection, and automated control systems linked to onshore oversight. Chemical injection systems manage corrosion and hydrate formation. Enhanced Oil Recovery (EOR) infrastructure supports polymer or water injection to maintain reservoir pressure and optimize long-term recovery.
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