Expandable Section Mill and Method

摘要

An expandable section mill includes a body having an outer surface and an inner cavity, a piston disposed within the inner cavity, a jaw member pivotally connected to a lower end of the body, and a blade assembly affixed to a tapered surface of the jaw member. The tapered surface of the jaw member includes a wear surface below the blade assembly. The jaw member includes an internal channel system for fluid flow through the jaw member to one or more outlets on the jaw member. The piston is moveable within the inner cavity for pivoting the jaw member between a retracted position and an extended position. In the retracted position, the blade assembly is positioned radially inward relative to the outer surface of the body. In the extended position, the blade assembly extends radially outward relative to the outer surface of the body.

主权项

1. An expandable section mill comprising:
a body having an outer surface and an inner cavity; a piston disposed within the inner cavity of the body; a jaw member pivotally connected to a lower end of the body, the jaw member including a tapered surface and an internal channel system for fluid flow through the jaw member; a blade assembly affixed to the tapered surface of the jaw member, wherein the tapered surface includes a wear surface below the blade assembly.