System and Method for High Speed Hydraulic Actuation
AssigneeExxonMobil Upstream Research Company
InventorsMario R. Lugo, Ryan D. Fontenot, Syed M. Rashid Ali
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Abstract
There is provided a device and method for high speed hydraulic actuation. The method includes adjusting a position of an actuator using a hydraulic pressure regulator. Adjusting the position of the actuator includes increasing pressure on the hydraulic pressure regulator to open the actuator using a first solenoid, or decreasing pressure on the hydraulic pressure regulator to close the actuator using a second solenoid.
Claims20
A device for high speed hydraulic actuation, the device comprising:
- a hydraulic pressure regulator used to adjust a position of an actuator;
- a first solenoid configured to increase pressure on the hydraulic pressure regulator to open the actuator;
- a second solenoid configured to decrease pressure on the hydraulic pressure regulator to close the actuator;
- and
- a control valve configured to be moved in response to the position of the actuator.
A method for high speed hydraulic actuation, the method comprising adjusting a position of an actuator using a hydraulic pressure regulator, wherein adjusting the position of the actuator comprises:
- increasing a pressure on the hydraulic pressure regulator to open the actuator using a first solenoid;
- or
- decreasing the pressure on the hydraulic pressure regulator to close the actuator using a second solenoid.
A method for harvesting hydrocarbons from a subsea wellhead, the method comprising:
- connecting wellbore fluids from the wellhead to a subsea separator;
- sending pressure data and fluid level data from the subsea separator to a subsea control module and a master control station;
- determining set-points at the master control station or the subsea control module using a proportional-integral-derivative loop within the subsea control module;
- controlling a hydraulic pressure from a hydraulic pressure regulator with a pair of solenoids based on the set-points, wherein:
- increasing a pressure on the hydraulic pressure regulator using a first solenoid opens an actuator;
- or
- decreasing the pressure on the hydraulic pressure regulator using a second solenoid closes the actuator;
- and
- adjusting the position of an actuator using the hydraulic pressure regulator.
Dependencies are inferred from the claim text.