Hydraulic and earth engineering – Marine structure or fabrication thereof
Patent
1984-06-26
1987-01-06
Taylor, Dennis L.
Hydraulic and earth engineering
Marine structure or fabrication thereof
166350, 166367, 405203, E21B 1701
Patent
active
046343148
ABSTRACT:
Tubular marine riser sections are formed by a wound or woven filament-resin matrix tubular body having a modulus of elasticity in tension of about 27,000,000 psi or greater utilizing carbon or boron for the filament material. The riser sections may be provided with end couplings secured to the tubular body for forming a riser system wherein the tensile strength or load bearing capacity of each section and its hydrostatic collapse resistance may be selectively determined by its position in the riser system. The riser sections may be provided with cylindrical collapse resisting ribs defining spaced buoyancy chambers filled with low density material contained by an outer shell formed of a glass or aramid fiber-resin matrix composite having a lower modulus of elasticity in tension than the primary load bearing tubular member. An inner abrasion and fluid impervious sleeve is disposed within the tubular body but is not bonded thereto. Multiple conduit riser sections may be utilized as anchoring members for a floating platform and the like.
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Hercules Composite Structures brochure, Hercules Incorporated.
Taylor Dennis L.
Vetco Offshore Inc.
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