Wellbore cutter

Details Wellbore cutter Wellbore cutter

1996-08-02

1998-03-31

Dang, Hoang C.

Wells

Means for perforating, weakening, bending or separating pipe...

Cutter rotates circumferentially of pipe

E21B 2900

Patent

active

057327700

ABSTRACT:
A new wellbore cutter has been invented which, in certain embodiments has a piston having a fluid flow bore therethrough, at least one stabilizer kick-out member, and at least one cutting blade kick-out member, an outer body through which the piston projects, the outer body movable about the piston, the outer body having at least one stabilizer pivotably mounted thereto, the at least one stabilizer movable out from the outer body upon movement of the outer body with respect to the piston so that the at least one stabilizer contacts the at least one stabilizer kick-out member, said contact effecting extension of the at least one stabilizer out from the outer body, and the outer body having at least one cutting blade pivotably mounted thereto, the at least one cutting blade movable out from the outer body upon movement of the outer body with respect to the piston so that the at least one cutting blade contacts the at least one cutting blade kick-out member, said contact effecting extension of the at least one cutting blade out from the outer body. In one aspect the at least one stabilizer is extended prior to cutting by the at least one cutting blade. The stabilizer(s) and cutting element(s) or blade(s) can be retracted by pulling on the piston or by reducing fluid pressure.

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