Patent ID: 9297226
Filing Date: 2016-03-29
CPC Classification: E21B

Claim Text:
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.