Patent ID: 7152686
Filing Date: 2006-12-26
Classification: E21B

Abstract:
1. A downhole tool for connection in a work string to be inserted into tubing in a well bore, the tool comprising a tubular body and a sleeve mounted on the tubular body; the body having a central bore therethrough, means for attachment to the work string and at least one radial port; the sleeve including a plurality of moveable pads, and at least one first port and at least one second port, wherein the first port(s) provides access of fluid from the annulus between the tool and the tubing wall to a back surface of the/each pad so that the/each pad is moveable to contact a wall of the tubing such that the tool bears at least a part of a weight of the work string and, the second port(s) provides access of fluid between the radial port(s) of the body and a front surface of the/each pad, so that the tool can be controlled via differential pressure between the annulus and the central bore of the work string.