Back pressure valve
First Claim
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1. A system, comprising:
- a back pressure valve configured to mount in a bore of a mineral extraction system, wherein the back pressure valve comprises;
a body; and
a valve disposed in a valve bore extending through the body, wherein the valve is configured to move along a first path of travel between an open position and a closed position relative to a valve seat;
a lock coupled to the body separate from the valve, wherein the lock is configured to move along a second path of travel between an unlocked position and a locked position relative to the bore to selectively unlock and lock the back pressure valve in the bore of the mineral extraction system, wherein the back pressure valve is configured to seat in the bore and lock in the bore via the lock in response to a first axial force in a single first direction delivered via a single retrievable tool, wherein the single retrievable tool is configured to be retrieved from the bore after seating and locking the back pressure valve in the bore.
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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.
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Citations
24 Claims
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1. A system, comprising:
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a back pressure valve configured to mount in a bore of a mineral extraction system, wherein the back pressure valve comprises; a body; and a valve disposed in a valve bore extending through the body, wherein the valve is configured to move along a first path of travel between an open position and a closed position relative to a valve seat; a lock coupled to the body separate from the valve, wherein the lock is configured to move along a second path of travel between an unlocked position and a locked position relative to the bore to selectively unlock and lock the back pressure valve in the bore of the mineral extraction system, wherein the back pressure valve is configured to seat in the bore and lock in the bore via the lock in response to a first axial force in a single first direction delivered via a single retrievable tool, wherein the single retrievable tool is configured to be retrieved from the bore after seating and locking the back pressure valve in the bore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system, comprising:
a back pressure valve running tool configured to couple to a back pressure valve having a valve configured to move along a first path of travel between an open position and a closed position relative to a valve seat, wherein the back pressure valve running tool is configured to drive a lock of the back pressure valve to move along a second path of travel from an unlocked position to a locked position relative to a bore of a mineral extraction system, wherein the back pressure valve running tool is configured to transmit a first axial force in a single first direction to seat the back pressure valve in the bore and lock the back pressure valve in the bore via the lock, wherein the back pressure valve running tool is configured to be retrieved from the bore after seating and locking the back pressure valve in the bore. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A system, comprising:
a back pressure valve retrieval tool configured to couple to a back pressure valve having a valve configured to move along a first path of travel between an open position and a closed position relative to a valve seat, wherein the back pressure valve retrieval tool is configured to drive a lock of the back pressure valve to move along a second path of travel from a locked position to an unlocked position relative to a bore of a mineral extraction system, wherein the back pressure valve retrieval tool is configured to transmit an axial retrieval force in a single retrieval direction to unlock the back pressure valve from the bore via the lock and extract the back pressure valve from the bore. - View Dependent Claims (20, 21, 22, 23, 24)
Specification