E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/51
E21B 17/01 (2006.01) B63B 22/02 (2006.01)
Patent
CA 1170177
F-0700-L MARINE COMPLIANT RISER SYSTEM Abstract: A marine compliant riser system for connecting a marine floor base (24) to a marine surface facility (22a) includes a multiconduit riser section (21) ascending from the marine floor base to a submerged buoy section (26) and a plurality of flexible flowlines (22, 70) operatively connected between the surface facility and the buoy section, and also includes a yoke beam (82, 83) which retains the flexible flowlines in a spaced linear array adjacent the buoy section; a pair of spaced arms (34) extending outwardly from the buoy section and upon which the yoke beam is mounted; a pair of retractable pins (87c) one interposed between the yoke beam and each arm spanning a slot (34a) in the arm and supporting a member (87a) projecting from the yoke beam; and means (87b) for retracting the pins to enable the projecting members to pass through the slots and permit the yoke beam to fall freely from the buoy section.
388194
Gentry Larry L.
Klootwyk Ronald I.
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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