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US 12,618,303 B2Granted
Single solenoid valve electro-hydraulic control system that actuates control valve
AssigneeHalliburton Energy Services, Inc.
InventorsLorenzzo Breda Minassa, Robert William Gissler
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Abstract
A method comprises charging a first hydraulic line to have greater pressure than a second hydraulic line and energizing a solenoid valve, wherein charging the first hydraulic line and energizing the solenoid valve initiates transition of an interval control valve (ICV) from a first state to a second state. The method comprises discontinuing energizing the solenoid valve and maintaining the greater pressure in the first hydraulic line until the ICV reaches a desired state.
Claims11
A method comprising:
- charging a first hydraulic line to have greater pressure than a second hydraulic line to enable fluid flow from the first hydraulic line through a shuttle valve to a solenoid valve and energizing the solenoid valve to initiate transition of an interval control valve (ICV) from a first state to a second state;
- discontinuing energizing the solenoid valve to stop ICV movement when the ICV reaches the second state;
- charging the second hydraulic line to have a greater pressure than the first hydraulic line to enable fluid flow from the second hydraulic line through the shuttle valve to the solenoid valve and energizing the solenoid valve to initiate transition of the ICV from the second state to the first state;
- and
- discontinuing energizing the solenoid valve to stop ICV movement when the ICV reaches the first state.
2 more elements
Dependencies are inferred from the claim text.