Wells – Submerged well – Submerged – buoyant wellhead or riser
Patent
1989-04-18
1990-04-03
Kisliuk, Bruce M.
Wells
Submerged well
Submerged, buoyant wellhead or riser
166355, 166356, 166358, 175 7, 175 8, 405195, E21B 7128, E21B 4301, B63B 3544
Patent
active
049132385
ABSTRACT:
A floating/tensioned production system for use in deepwater drilling and production operations generally combining a relatively small tension leg platform with a semisubmersible platform. The semisubmersible platform is provided with a working deck supported above the water surface so that an air gap exists between the working deck and the water surface. The tension leg platform provides a heave-restrained production deck for near-surface wellhead equipment. The production deck is supported above the drill site but beneath the water surface by buoyancy members and held in place by one or more tethers. Most other drilling and production equipment is located on the semisubmersible working deck. A caisson, surrounding the production deck, is used to provide a substantially dry working area. In one embodiment, the caisson is retractably attached to the production deck. In an alternative embodiment, the caisson is attached to the bottom of the working deck, extending downwardly to sealingly engage with the production deck.
REFERENCES:
patent: 3372745 (1968-03-01), Holmes
patent: 3412564 (1968-11-01), McClintock
patent: 3450201 (1969-06-01), Blenkarn
patent: 3472032 (1969-10-01), Howard
patent: 3638720 (1972-02-01), Thomas
patent: 3902553 (1975-09-01), Jergins
patent: 4098333 (1978-07-01), Wells et al.
patent: 4158516 (1979-06-01), Noblanc et al.
patent: 4170266 (1979-10-01), Fayren
patent: 4305468 (1981-12-01), Goldsmith
patent: 4391332 (1983-07-01), Fayren
patent: 4407579 (1977-09-01), Wilckens et al.
patent: 4516882 (1985-05-01), Brewer et al.
patent: 4646841 (1987-03-01), Schawann et al.
patent: 4702321 (1987-10-01), Horton
patent: 4762180 (1988-08-01), Wybro et al.
patent: 4780026 (1988-10-01), Gunderson
Buckman, D., "New Concept: Dynamic Mooring-Positioning System for Fixed, Compliant Modes for Platform", Ocean Industry, pp. 67-69, Mar. 1976.
Telecopy Disclosure from Earl & Wright Consulting Engineers dated Jul. 14, 1988.
Telephone Disclosure from Paul Geiger of Friede & Goldman on Jul. 5, 1988.
Disclosure dated Aug. 1988 (received at EPR 11-17-88) entitled "Deepwater Floating Production System with Surface Wellheads" by Friede & Goldman.
Danazcko Mark A.
Haring Robert E.
Huffaker Roger W.
Exxon Production Research Company
Kisliuk Bruce M.
Luck Sheila M.
LandOfFree
Floating/tensioned production system with caisson does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Floating/tensioned production system with caisson, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Floating/tensioned production system with caisson will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1351374