Patent ID: 6902008
Filing Date: 2005-06-07
Classification: E21B

Abstract:
1. A packer, comprising: a mandrel having a first end and a second end; a booster sleeve defining a tubular body having a first end and a second end, the booster sleeve being disposed circumferentially around the mandrel and sealingly engaged with the mandrel; a packing element disposed circumferentially around an outer surface of the mandrel and adjacent the booster sleeve; a first sleeve disposed on an outer surface of the mandrel, the first sleeve having an extension member disposed adjacent the booster sleeve for compressing the packing element; a second sleeve disposed on the outer surface of the mandrel, the second sleeve having an extension member disposed adjacent to the packing element for compressing the packing element; at least one motion limiting member disposed between the first sleeve and the booster sleeve that allows the first sleeve to move toward the packing element while preventing the first sleeve to move away from the packing element; and at least one motion limiting member disposed between the second sleeve and the booster sleeve that allows the second sleeve to move toward the packing element while preventing the second sleeve to move away from the packing element, wherein the packing element is moved to the outer surface of the booster sleeve upon actuation of the packer.