Multi-cycle pipe cutter and related methods

摘要

A downhole cutting tool includes a tool body and a plurality of cutter knife sets, each of the plurality of cutter knife sets configured to extend outwardly to separately perform a pipe cutting operation. A first cutter knife set has a diameter in an extended position larger than a diameter in an extended position of a second cutter knife set. A method includes running the downhole cutting tool into a wellbore, deploying the first set of expandable cutting arms to an extended position and engaging the extended expandable cutting arms with a first work piece, rotating the downhole cutting tool and cutting the first work piece, deploying the second set of expandable cutting arms during a single trip into the wellbore to an extended position and engaging the extended expandable cutting arms with a second work piece, and rotating the downhole cutting tool and cutting the second work piece.

主权项

1. A downhole cutting tool comprising:
a tool body having a piston assembly disposed in a central bore thereof, the piston assembly configured to translate longitudinally along the central axis of the tool body; and a plurality of cutter knife sets, each of the plurality of cutter knife sets including at least two individual cutter knives circumferentially spaced about a central axis of the tool body, each of the plurality of cutter knife sets coupled to the tool body and configured to selectively engage with the piston assembly to actuate independently and extend outwardly to separately perform a pipe cutting operation, a first cutter knife set of the plurality of cutter knife sets having a diameter in an extended position larger than a diameter in an extended position of a second cutter knife set of the plurality of cutter knife sets, wherein the piston assembly is configured to translate and rotate with respect to the tool body to selectively engage at least one of the plurality of cutter knife sets.