Patent ID: 8496051
Filing Date: 2013-07-30
Classification: E21B,Y10T

Abstract:
1. Apparatus for forming an annular body of a fluidic material in a first annular region that is partially defined by a preexisting structure, the apparatus comprising: a first tubular member defining a first internal passage, wherein the outside surface of the first tubular member is adapted to partially define the first annular region; a second tubular member defining a second internal passage, the second tubular member extending within the first internal passage; a first axially-extending channel formed in the outside surface of the second tubular member; a first component extending from the first tubular member and into the first axially-extending channel, the first component resisting relative rotation between the first and second tubular members; a lock key at least partially disposed within the first axially-extending channel, the lock key comprising a bar member; and a spring radially disposed between the bar member and the second tubular member; wherein the second tubular member is movable, relative to the first tubular member and the first component, from a first position to a second position; wherein, when the second tubular member is in the first position, the first component engages the bar member to thereby energize the spring; and wherein, when the second tubular member is in the second position: