Hydraulic and earth engineering – Marine structure or fabrication thereof
Patent
1985-06-26
1987-03-10
Corbin, David H.
Hydraulic and earth engineering
Marine structure or fabrication thereof
166350, 166367, E21B 712
Patent
active
046487476
ABSTRACT:
A riser string for a subsea well uses the outer conduit or air can members to support the weight of the riser string. The outer conduits have flanges on their ends which are bolted together. The outer conduits have ports to admit sea water, and a gas injection system to displace some of the sea water for providing buoyancy. Mounting plates are located at each end of the outer conduits. Inner conduits for conveying well and production fluids are mounted between these mounting plates. The mounting plates are intrinsically curved in vertical cross-section, such that when the conduit flanges are bolted together, the mounting plates flatten to provide a compressive force across the faces. Metal seals are located in the holes provided in the mounting plates for the inner conduits. The inner conduits are supported along their lengths by one or more lateral supports.
REFERENCES:
patent: 3330340 (1967-07-01), Hayes et al.
patent: 3992889 (1976-11-01), Watkins et al.
patent: 4040264 (1977-08-01), Neilon
patent: 4176986 (1979-12-01), Taft et al.
patent: 4374595 (1983-02-01), Watkins
Crager Bruce L.
Fox Gary L.
Houlgrave Robert C.
Regan Albert M.
Watkins Bruce J.
Bradley James E.
Corbin David H.
Hughes Tool Company
LandOfFree
Integral buoyant riser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integral buoyant riser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integral buoyant riser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1019073