The method of providing depth compensated motion compensation proximate a subsea landing package to isolate heaving motion of the supporting vessel from the supported subsea landing package, comprising a supporting cylinder for connecting to the subsea landing package having a first cross sectional area exposed to environmental pressure with a resulting first force, a second and opposing cross section area exposed to environmental pressure providing a second and opposing balancing force, a piston within the cylinder with compressed gas in a first chamber on a first side of the piston and a low pressure gas or a vacuum is in a second chamber on the opposite side of the piston, and adjusting the gas pressure in the first chamber acting on the piston such that the force acting on the piston is approximately the in water buoyed weight of the subsea landing package.
Depth Compensated Motion Compensation Method
2019-04-11
Patent
Elektronische Ressource
Englisch