Patent ID: 9366101
Filing Date: 2016-06-14
CPC Classification: E21B

Claim Text:
1. A cut and pull apparatus for a subterranean tubular comprising: a mandrel having an open mandrel passage therethrough; a piston movably mounted to said mandrel responsive to flow selectively applied through said open mandrel passage; at least one blade assembly pivotally mounted to said mandrel and responsive to piston movement for extension and retraction with respect to the subterranean tubular for respectively cutting the tubular and removal of a severed segment of the tubular and for subsequent removal of the apparatus; said blade assembly remaining selectively extended by virtue of a locking assembly that holds a position of said piston after initial movement of said piston which rotates said blade assembly to the fully extended cutting position before cutting begins on the tubular and when said pressure is no longer selectively applied to prevent retraction of said blade assembly.