Boring or penetrating the earth – Boring a submerged formation
Patent
1999-04-14
2000-05-30
Neuder, William
Boring or penetrating the earth
Boring a submerged formation
175 52, 175 85, E21B 712
Patent
active
060680695
ABSTRACT:
A multi-activity drillship, or the like, method and apparatus having a single derrick and multiple tubular activity stations within the derrick wherein primary drilling activity may be conducted from the derrick and simultaneously auxiliary drilling activity may be conducted from the same derrick to reduce the length of the primary drilling activity critical path.
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Herrmann Robert P.
Ray Donald R.
Scott Robert J.
Kile Bradford E.
Neuder William
Sterba Richard A.
Transocean Offshore Inc.
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