Type:
Oil
Facility:
Production
Water Depth:
145
Installed:
1980
meters
Block:
33/9
Design:
Gravity-based concrete
Sub Structure:
603000
Topsides Wgt:
40500
tonnes
tonnes
Intro
Statfjord C is an integrated concrete gravity-base platform on the Statfjord field, installed mid-1980s and producing since July 1985. Positioned in the field’s northern sector, it is similar in design to Statfjord B but with additional storage and processing capacity. It anchors production, drilling and utility modules with export interfaces in ~145-m water depth.
Field
The Statfjord field’s reservoirs span Jurassic and Triassic sandstones across a trans-boundary area of the North Sea. Statfjord C contributes to oil and gas recovery alongside A and B platforms and handles inputs from satellite reservoirs tied back to the complex.
Facilities
Statfjord C’s Condeep GBS contains concrete storage cells and four shafts supporting a steel topside with drilling, processing and accommodation. Oil wells and injection wells drilled through the shafts feed a multi-stage three-phase separation system; water and gas are handled through dehydration and compression trains. Stabilised crude is transferred to storage cells and then to shuttle tankers via offshore loading systems. Gas processing includes compression and dewatering before export through the Statpipe system to onshore facilities. The installation’s utilities include power generation, produced water handling, safety flare systems and integrated automation/control systems coordinating with adjacent platforms and subsea tie-backs (e.g., Statfjord G, H) for reservoir management. Its robust structure supports long life in the harsh North Sea environment.
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