Drilling Marine Riser Hangoff

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Various arrangements for riser hangoff or trip-saver mode in deepwater to reduce non-productive riser pulling operations have been developed.  In order to accommodate rig motion, a gimbal arrangement has to be incorporated and some have included complex hydraulic cylinder and accumulator arrangements.  The Hampco system adopts tried and tested ball-joint type technology with spherically-surfaced lubricated male and female mating surfaces engaging within a horseshoe-type landing collar.  The male surface is incorporated/installed on a standard riser pup joint.