A passive deep-sea heave compensation device for ocean platform drilling is disclosed. A vertical guiding groove is formed inside a drilling derrick; a vertical spring is fixedly arranged on the top of the guiding groove; a pressure plate located in the guiding groove is fixedly arranged on the bottom of the spring; a floating crown block is located below the pressure plate; a central sheave whose cylindrical surface is provided with a plurality of trunkings is rotatably mounted in the floating crown block. The heave compensation device further comprises a hook, a riser, a large hook lifting rope, a steel wire rope and a displacement compensation mechanism I and a right displacement compensation mechanism II which are arranged on the left side and the right side of a stand respectively. The displacement compensation mechanism I and the right displacement compensation displacement mechanism II are arranged in a left-right symmetrical manner.
PASSIVE DEEP-OCEAN HEAVE COMPENSATION DEVICE FOR OCEAN PLATFORM DRILLING
DISPOSITIF DE COMPENSATION DE TANGAGE PASSIF EN OCEAN PROFOND DESTINE A UNE PLATEFORME DE FORAGE EN OCEAN
2021-07-20
Patent
Electronic Resource
English
European Patent Office | 2022
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