E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 49/08 (2006.01) E21B 23/00 (2006.01) E21B 34/10 (2006.01)
Patent
CA 2206806
A downhole tool comprising a housing having a fluid passageway, a mandrel having an interior volume, the mandrel slidably disposed within the housing, the mandrel having a plurality of axial positions relative to the housing, the mandrel slidably operated responsive to the fluid pressure within the interior volume such that the mandrel cycles through said plurality of positions, a retractor sleeve operably associated with the housing and the mandrel for engaging the mandrel and slidably urging the mandrel relative to the housing, the retractor sleeve slidably operated responsive to the fluid pressure within the interior volume, and a seal assembly slidably disposed around the housing, the seal assembly including a floating piston, the housing and the floating piston defining a chamber therebetween, the chamber in communication with the fluid passageway of the housing such that the fluid pressure within the interior volume enters the chamber and slidably urges the seal assembly to stretch the seal assembly.
Ringgenberg Paul D.
Schultz Roger L.
Skinner Neal G.
Srubar Robert W.
Waid Margaret C.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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