E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/51
E21B 33/035 (2006.01) E21B 7/128 (2006.01) E21B 17/01 (2006.01)
Patent
CA 1045029
ABSTRACT OF THE INVENTION An improved marine riser is described which is comprised of a plurality of conduit sections joined together end to end. Buoyancy cans for retaining a compressed gas are flexibly connected to the riser at selected locations along its length and form a fluid tight seal therewith.
244766
Ilfrey William T.
Schaeffer Philippe H.
Walker James M.
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