Patent ID: 6155346
Filing Date: 2000-12-05
Classification: E21B

Abstract:
A downhole tool for preventing rotational movement of a member within a well comprising an elongate tubular member having a central axis; a drag housing carrying drag means and being mounted on and rotatable about the tubular member; a slip housing disposed about the tubular member and secured to the drag housing to rotate with the drag housing about the tubular member, the slip housing including at least two slots extending from an edge thereof, each slot including an open end and a closed end and an open face opening to the outer surface of the slip housing, each slot retaining a slip member, the slip members each being normally biased inwardly toward the tubular member and being retained in the slot to move with the slip housing and cam means on the outer surface of the tubular member including an outwardly extending cam surface for each slip member, the slip housing positioned over the cam means so that the cam surfaces can ride under the slip members to urge them radially outwardly through the slots.