Wellbore Shut Off Valve with Hydraulic Actuator System
AssigneeBaker Hughes Incorporated
InventorsThad D. Andrews, Thomas Scott Myerley, Mona I. Desai, Martin Neil Farquhar, Andrew Haynes, Craig Coull, Jesse J. Constantine
Life of this patent
Estimating the term…
Abstract
A wellbore shut-off valve is operably associated with a valve actuator so that the shut-off valve can be selectively moved between open and closed conditions when desired rather than opening and closing occurring automatically as portions of the production assembly are removed or replaced in the wellbore.
Claims15
A shut-off valve assembly for use in selectively closing off a section of wellbore to fluid flow, the assembly comprising:
- a shut-off valve incorporated within a completion string within the wellbore, the shut-off valve being moveable between an open condition wherein fluid may flow through the completion string, and a closed condition, wherein fluid flow through the completion string is blocked;
- and
- a valve actuator incorporated within the completion string and associated with the shut-off valve, the valve actuator operating the shut-off valve between its open and closed conditions.
A shut-off valve assembly for use in selectively closing off a section of wellbore to fluid flow, the assembly comprising:
- a shut-off ball valve incorporated within a completion string within the wellbore, the shut-off ball valve being moveable between an open condition wherein fluid may flow through the completion string, and a closed condition, wherein fluid flow through the completion string is blocked;
- and
- a valve actuator incorporated within the completion string and associated with the shut-off valve, the valve actuator operating the shut-off valve between its open and closed conditions.
A method of selectively shutting off a wellbore so that an upper portion of a completion assembly within the wellbore may be removed, the method comprising the steps of:
- operably associating a wellbore shut-off valve which is operable between open and closed conditions with a valve actuator that controls movement of the valve between open and closed conditions;
- operating the valve actuator to move the shut-off valve to the closed condition;
- and
- detaching and removing the upper completion assembly portion from a lower completion portion within the wellbore after the shut-off valve has been closed.
Dependencies are inferred from the claim text.