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[2] [3] [4] Condeep is an abbreviation for concrete deep water structure. A Condeep usually consists of a base of concrete oil storage tanks from which one, three or four concrete shafts rise. [5] The Condeep base always rests on the sea floor, and the shafts rise to about 30 meters above the sea level.
The base and the deck were built separately, and were joined in 1998 while the base was partially submerged. The base is a Condeep gravity base structure built from reinforced concrete. The Troll platform was towed over 200 kilometres (120 mi) from Vats, in the northern part of Rogaland, to the Troll field, 80 kilometres (50 mi) north-west of ...
The Statfjord field has three condeep concrete production platforms, A, B [6] and C [7] Each platform is made up of approximately 250,000 tonnes of concrete with 40,000 tonnes of top-side processing and accommodation facilities.
Concrete offshore platforms of the gravity-base type are almost always constructed in their vertical attitude. This allows the inshore installation of deck girders and equipment and the later transport of the whole structure to the installation site. The most common concrete designs are: [citation needed] Condeep (with one, two, three or four ...
The original hull was a gravity base made up of support pilings and concrete ballast chambers from which three or four shafts rise and upon which the deck sits. Once fully ballasted, the hull was to sit on the sea floor. There were 24 chambers, of which four formed the 'legs' supporting the facility on top in the case of the Sleipner A oil rig.
Condeep Norway North Sea: Norwegian Contractors: Equinor (originally Statoil) 825 Height is only to the concrete base, likely to be similar in height to Gullfaks C. Displacement during tow; 518,000 [29] Statfjord B Platform [30] 271 889 1982 Condeep Norway North Sea Norwegian Contractors Equinor (originally Statoil) Statfjord A Platform [30 ...
The first in place was the concrete-legged "Condeep" Brent Bravo, built by Norwegian Contractors in Stavanger, in August 1975. ... and the concrete-base Brent Charlie
A Condeep type GBS under construction in Norway. A gravity-based structure (GBS) is a support structure held in place by gravity, most notably offshore oil platforms. These structures are often constructed in fjords due to their protected area and sufficient depth.