Method of installing and using offshore well development and production platforms
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United States of America Patent
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-
Jan 8, 1985
Issued Date -
N/A
app pub date -
Apr 6, 1981
filing date -
May 2, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A development and production facility for an offshore oil or gas field is constructed and drilling of wells is performed using a jack-up drilling platform in an improved manner. The facility is composed of a development well platform and a production platform, each of which is composed of a modular prefabricated unitary deck assembly of substantially turn-key completeness and of a prefabricated jacket or leg assembly to which the deck assembly is matable. Crane or derrick barges are used only to position the deck assemblies on the leg or jacket assemblies after the latter assemblies have been placed erect on and secured to the sea floor by use of the jack-up platform. The development well platform is constructed first so that drilling of development wells can be performed from the jack-up platform through the former platform concurrently with the placement and completion of the production platform.
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