Patent ID: 8857509

Claim:
A tool for use in a cased wellbore, the tool comprising: a hollow mandrel adapted for suspension from a tubing string in a wellbore at a subterranean location; means located on the mandrel for movement into and out of a radially expanded position engaging the wellbore sufficiently to limit movement of the tool in the wellbore; and a drag block located on the mandrel operably associated with the wellbore engaging means, the drag block comprising a plurality of longitudinally spaced drag rings, the internal surfaces of the rings fitting around the mandrel in sliding relationship and the outer surface of the rings being of a size to frictionally engage the wellbore casing, a longitudinally extending member connected to and extending between the rings, the longitudinally extending member maintaining the drag rings in their longitudinally spaced positions, a J-slot defined in the longitudinally extending member.