Pump device for the hydraulic actuation of a valve
AssigneeCameron International Corporation
InventorKlaus Biester
Life of this patent
Estimating the term…
Abstract
Pump device for hydraulically activating a valve in particular used for oil and gas exploration wherein such a valve may be a safety valve assigned to a riser or a tree, said pump device including a piston cylinder unit from which pressurized hydraulic fluid can be pumped in direction to the valve. To improve such a pump device so that the pressure of the hydraulic fluid is produced in particular at the corresponding site and near to the valve and is safe and constructed in a simple way an electrical drive means is movably connected to a piston of the piston cylinder unit for alternating movement in axial direction of the piston within the cylinder.
Claims28
A system, comprising:
- a hydrocarbon production safety valve system, comprising:
- a hydraulic pump comprising a hydraulic inlet and a hydraulic outlet, wherein the hydraulic pump is configured to pump a hydraulic fluid from the hydraulic inlet to the hydraulic outlet;
- a hydraulically actuated safety valve coupled to the hydraulic outlet, wherein the hydraulically actuated safety valve receives the hydraulic fluid from the hydraulic outlet, the hydraulically actuated safety valve and the hydraulic pump are physically separate from one another, and the hydraulically actuated safety valve is proximate to the hydraulic pump;
- and
- a first servomotor and a second servomotor, wherein the first and second servomotors are arranged redundantly with respect to one another, and the first and second servomotors are configured to operate an internal safety valve.
A system, comprising:
- a hydraulic pump configured to actuate a hydraulically actuated safety valve of a hydrocarbon production system, wherein the hydraulic pump comprises a hydraulic inlet and a hydraulic outlet, the hydraulic pump is configured to pump a hydraulic fluid from the hydraulic inlet to the hydraulically actuated safety valve coupled to the hydraulic outlet, the hydraulic pump is configured to be disposed external to the hydraulically actuated safety valve, and the hydraulic pump is configured to be disposed proximate to the hydraulically operated safety valve;
- and
- a first servomotor and a second servomotor, wherein the first and second servomotors are arranged redundantly with respect to one another, and the first and second servomotors are configured to operate an internal safety valve of the hydraulic pump.
A method, comprising:
- pumping a hydraulic fluid from a hydraulic outlet of a hydraulic pump to a hydraulically actuated safety valve of a hydrocarbon production system, wherein the hydraulic pump comprises a hydraulic inlet and the hydraulic outlet, and the hydraulic pump is configured to pump a hydraulic fluid from the hydraulic inlet to the hydraulic outlet;
- actuating the hydraulically actuated safety valve using the hydraulic fluid pumped from the hydraulic pump, wherein the hydraulically actuated safety valve and the hydraulic pump are configured to be physically separate from one another, and the hydraulically actuated safety valve is configured to be proximate to the hydraulic pump;
- and
- operating an internal safety valve of the hydraulic pump with a redundant set of a first servomotor and a second servomotor.
A system, comprising:
- a hydrocarbon production safety valve system, comprising:
- a hydraulic pump comprising a hydraulic inlet and a hydraulic outlet, wherein the hydraulic pump is configured to pump a hydraulic fluid from the hydraulic inlet to the hydraulic outlet;
- a hydraulically actuated safety valve coupled to the hydraulic outlet, wherein the hydraulically actuated safety valve receives the hydraulic fluid from the hydraulic outlet, the hydraulically actuated safety valve and the hydraulic pump are physically separate from one another, and the hydraulically actuated safety valve is proximate to the hydraulic pump;
- and
- an electrical drive coupled to the hydraulic pump, wherein the electrical drive comprises a spindle nut, a spur gear, and a wave generator coupled to the spur gear.
Dependencies are inferred from the claim text.