Patent ID: 11885202
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 13:
14. An electrically surface-controlled subsurface safety valve, comprising:
an outer housing comprising a central bore extending axially through the outer housing, the central bore operable to convey subsurface production fluids there through;
a valve closure mechanism disposed proximate a downhole end of the central bore;
a bore flow management actuator disposed in the central bore;
a piston coupled to the bore flow management actuator, the piston operable to move the bore flow management actuator between a closed state and a flow state to engage or disengage the valve closure mechanism to determine a flow condition of the subsurface production fluids through the central bore; and
an electro/hydraulic valve fluidly coupled to the piston for movement thereof, the electro/hydraulic valve including;
a fluid chamber, the fluid chamber configured to collect fluid leakage from the piston; and
an electro/mechanical pump having a fluid inlet and a fluid outlet, and further wherein an inlet check valve is positioned in fluid communication between the fluid chamber and the fluid inlet and an outlet check valve is positioned in fluid communication between the fluid outlet and the piston.