Wells – Submerged well – Means removably connected to permanent well structure
Patent
1989-08-30
1991-01-29
Kisliuk, Bruce M.
Wells
Submerged well
Means removably connected to permanent well structure
166 55, 166340, 166365, 285308, 285920, E21B 2912
Patent
active
049879561
ABSTRACT:
Apparatus is disclosed for use in drilling an offshore well wherein a drill string suspended from a drill ship for extension within a riser pipe, lower marine riser package and subsea wellhead including a blowout preventer stack may be sheared at a location intermediate the lower end of the riser pipe and a flex or ball joint of the riser package.
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Hansen Asger
Kelly, Jr. Martin J.
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