Hydraulic and earth engineering – Marine structure or fabrication thereof
Patent
1978-07-10
1980-01-08
Taylor, Dennis L.
Hydraulic and earth engineering
Marine structure or fabrication thereof
F16L 100, B63B 3500
Patent
active
041825845
ABSTRACT:
A free-standing, marine production riser and a method of installing same for use in deep-water areas to conduct fluids between the marine bottom and the surface. The riser system is comprised of a lower rigid section and an upper flexible section. The lower rigid section has a casing extending from a preset base on the marine bottom to a point just below the zone of turbulence which exists near the surface of the water. A variable-buoyant buoy having a curved upper surface and a central passage therethrough is mounted on the upper end of the casing to support the casing in a substantially vertical position when the casing is in position on the preset base. A remotely actuated connector assembly is provided on the lower end of the casing for connecting the casing to the preset base. A plurality of conduits are run through the passage in the buoy and through guide means in the casing and are remotely connected to mating conduits on the base. Each of a plurality of flexible flowlines is connected to a respective conduit at a point within the passage in the buoy. Each of the flexible flowlines is of sufficient length to extend over the upper curved surface of the buoy which provides a natural bending radius for the flexible flowlines and then downward through a catenary loop before extending upward to the surface. The flowline length also will be sufficient to maintain a catenary loop in the flowline at all times during normal operating conditions. All of the upper ends of the flexible flowlines are connected to a single flange which, in turn, is adapted to be quickly connected to and disconnected from a floating facility at the surface. In turn, each flexible flowline can be individually installed and/or removed.
REFERENCES:
patent: 3261398 (1966-07-01), Haeber
patent: 3363683 (1968-01-01), Corley et al.
patent: 3372745 (1968-03-01), Holmes
patent: 3504741 (1970-04-01), Baker et al.
patent: 3515182 (1970-06-01), Dickson et al.
patent: 3535883 (1970-10-01), Manning
patent: 3557396 (1971-01-01), Rupp
patent: 3605668 (1971-09-01), Morgan
patent: 3641602 (1972-02-01), Flory et al.
patent: 3677310 (1972-07-01), Dobler et al.
patent: 3700014 (1972-10-01), Scales et al.
patent: 3756293 (1973-09-01), Adler et al.
patent: 3911688 (1975-10-01), Behar et al.
patent: 4031919 (1977-06-01), Ortloff et al.
Ocean Industry, May 1977 p. 15
Hettinger Fredric L.
Jones Darrell L.
Panicker Narayana N.
Faulconer Drude
Huggett C. A.
Mobil Oil Corporation
Taylor Dennis L.
LandOfFree
Marine production riser system and method of installing same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Marine production riser system and method of installing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Marine production riser system and method of installing same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1940553