Dual Drilling Activity Drilling Ship
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United States of America Patent
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N/A
Issued Date -
Oct 13, 2011
app pub date -
Apr 7, 2010
filing date -
Apr 7, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A single drilling ship may be equipped with two drilling centers, each capable of running risers. Each drilling center has a set of tubulars stored for use in association with that drilling center, those tubulars including risers. However, the risers for one drilling center are of a smaller diameter than the risers for the other drilling center. In the event that a main drilling center drilled well fails, a relief well can then be drilled from the same ship using a secondary drilling center.
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