Patent ID: 9038748
Filing Date: 2015-05-26
Classification: E21B

Abstract:
1. An expandable apparatus for use in a subterranean borehole, comprising: a tubular body having a longitudinal bore and at least one opening in a wall of the tubular body; at least one member positioned within the at least one opening in the wall of the tubular body, the at least one member configured to move between a retracted position and an extended position; a sleeve member disposed in the tubular body and having a longitudinal bore forming a fluid passageway through the sleeve member to allow fluid to flow therethrough, the sleeve member comprising a retaining portion exhibiting a width that is greater than a width of an adjacent portion of the sleeve member; and a latch sleeve having at least one aperture formed therein and at least one latch member at least partially disposed within the at least one aperture, wherein, in an initial position, the retaining portion of the sleeve member selectively retains the at least one latch member in engagement with a portion of the tubular body to retain the at least one member in the retracted position, and wherein, in a triggered position, the sleeve member enables a portion of the at least one latch member to move radially inward into the longitudinal bore extending through the latch sleeve to disengage the at least one latch member from the tubular body.