Method of drilling and operating a subsea well
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United States of America Patent
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-
Jul 11, 2006
Grant Date -
Apr 22, 2004
app pub date -
Jan 9, 2002
filing date -
Jan 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of preparing and operating a subsea well (23), comprising the steps of: locating a drill-through subsea tree (24) on a subsea wellhead; sealingly connecting a high pressure drilling riser (22) between the tree and a drilling platform at the sea surface; mounting a blow out preventer (16) at the top of the riser (22); drilling the well through the drilling riser and the subsea tree; and establishing a production connection between the tree (24) and a production collection facility at the sea surface through a production riser (52) which is separate from the drilling riser (22).
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