System and method for momentary hydrostatic operation of hydrodynamic thrust bearings in a vertical fluid displacement module

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United States of America Patent

PATENT NO 8752674
SERIAL NO

13329767

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Abstract

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System and method for axial support of a pump or compressor rotor shaft during start-up or shut-down of a vertical fluid displacement module for subsea operation including a motor and a pump or compressor. Lubrication fluid is momentarily supplied for hydrostatic operation of hydrodynamic thrust bearing(s) from a topside or land-based fluid supply via a flow control module arranged in conjunction with a subsea pressure control unit configured for controlling the supply and discharge of barrier and lubrication fluids to/from the fluid displacement module.

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Patent Owner(s)

Patent OwnerAddress
VETCO GRAY SCANDINAVIA ASSANDVIKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tomter, Ole Petter Nesøya, NO 5 11

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