Wells – Submerged well – Means removably connected to permanent well structure
Reexamination Certificate
2005-08-16
2005-08-16
Singh, Sunil (Department: 3673)
Wells
Submerged well
Means removably connected to permanent well structure
C405S224200
Reexamination Certificate
active
06929071
ABSTRACT:
A system for providing motion compensation of a platform attached to an ocean floor. The platform is operatively associated with a riser extending from a subterranean well. The system comprises a frame member positioned on the platform and a deck slidably attached to the frame member, and wherein the deck is attached to the riser. The system further comprises a moving device for moving the frame member relative to the deck. In one of the preferred embodiments, the frame member contains a plurality of guide post and wherein the deck is slidably mounted on the guide post so that the frame member is movable relative to the deck. The moving device may comprise a cylinder member operatively attached to the frame member and a piston operatively attached to the deck and wherein the system further comprises a pressurized recharging vessel configured to direct a pneumatic supply to the cylinder member, and a gas delivery mechanism for keeping the cylinder member within a pressure range. A method of compensating for movement on an offshore platform during well operations is also disclosed.
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Miller, Jr. Joseph Hayden
Moncus James Devin
Devin International, Inc.
Domingue & Waddell PLC
Singh Sunil
LandOfFree
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