Valves and valve actuation – Fluid actuated or retarded – Fluid link or column actuator
Patent
1996-08-08
1999-04-27
Lee, Kevin
Valves and valve actuation
Fluid actuated or retarded
Fluid link or column actuator
138 31, F16K 31122
Patent
active
058970959
ABSTRACT:
A hydraulic pressure booster is disclosed which, when used in conjunction with a control system for a subsurface safety valve, allows the use of lower pressure ratings on the wellhead equipment, yet at the same time provides sufficient hydraulic pressure to actuate a subsurface safety valve at depths that could exceed 4,000 feet. A preferred embodiment compensates for any fluid loss through the seals to ensure effective operation. The hydraulic pressure booster comprises an amplifier to receive fluid pressure from a fluid pressure source and magnify the pressure. A conduit system facilitates connection of the pressure source to the amplifier and the magnified pressure from the amplifier to the subsurface safety valve. The system is simple and self-regulating and can be alternatively installed as an integral portion of the subsurface safety valve or immediately adjacent the subsurface safety valve or immediately below the wellhead.
REFERENCES:
patent: 2747370 (1956-05-01), Traut
patent: 2843349 (1958-07-01), Meyer
patent: 4163412 (1979-08-01), Porter
patent: 4442902 (1984-04-01), Doremus, et al.
patent: 4953591 (1990-09-01), Takagi et al.
patent: 5101904 (1992-04-01), Gilbert
Baker Hughes Incorporated
Lee Kevin
LandOfFree
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