Back pressure valve
AssigneeCameron International Corporation
InventorsDennis P. Nguyen, Kirk P. Guidry, Thomas E. Taylor
Life of this patent
Estimating the term…
Abstract
A system in some embodiments includes a back pressure valve configured to mount in a mineral extraction system. The back pressure valve comprises a cylindrical body comprising a venting port coaxial with a longitudinal axis of the cylindrical body and a plunger disposed in the venting port, wherein the plunger comprises a stem that extends from the venting port into an adjacent cavity of the cylindrical body. In some embodiments, a method of operating a valve, includes biasing a plunger to an open position, biasing a valve locking mechanism to a locked position in relation to a bore of a mineral extraction system, and biasing a plunger to a closed position.
Claims30
A system, comprising:
- a first component of a mineral extraction system, wherein the first component comprises a first bore extending along an axis;
- a second component of the mineral extraction system, wherein the second component is configured to mount inside the first bore of the first component;
- and
- a locking interface between the first bore of the first component and an exterior of the second component, wherein the locking interface comprises:
- a lock recess;
- and
- a lock structure, wherein the lock structure is configured to move in a radial direction relative to the axis between an unlocked position out of the lock recess and a locked position within the lock recess, and the locked position of the lock structure in the lock recess blocks axial movement of the second component in opposite first and second axial directions.
A system, comprising:
- a first tubular component of a wellhead assembly;
- a second tubular component of the wellhead assembly, wherein the first and second tubular components are disposed in a coaxial arrangement relative to an axis of the wellhead assembly;
- a locking interface between the first and second tubular components, wherein the locking interface comprises:
- a lock recess;
- and
- a lock structure;
- and
- a hold down structure configured to contact the lock structure and translate in an axial direction to drive the lock structure to move in a radial direction from an unlocked position out of the lock recess to a locked position within the lock recess, wherein the locked position of the lock structure in the lock recess blocks axial movement of the second component in opposite first and second axial directions.
A method, comprising:
- locking together a coaxial arrangement of first and second tubular components of a wellhead assembly along a locking interface, wherein locking comprises axially actuating a lock structure to move in a radial direction between an unlocked position out of a lock recess and a locked position within the lock recess of the locking interface;
- and
- blocking axial movement of the second component in opposite first and second axial directions via the lock structure within the lock recess in the locked position.
Dependencies are inferred from the claim text.