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US 2015/0101795 A1Published application
Downhole packer
AssigneeThru Tubing Solutions, Inc.
InventorsBrock Watson, Roger Schultz, Andy Ferguson, Mark Britton
Life of this patent
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Abstract
A packer having at least two or more areas of relative rotation. The packer also incorporates a jet port, a highly debossed mandrel and/or a J-pin rotatably disposed within a drag block assembly for continuously and redundantly engaging a J-slot area disposed in the mandrel. The areas of relative rotation can be between the mandrel and piping above the packer, the drag block assembly and the mandrel, and the drag block assembly and the J-pin.
Claims25
A packer, the packer comprising:
- a packer operationally supported by downhole piping for use in a wellbore, the packer having three or more areas of relative rotation with respect to the downhole piping or various parts of the downhole tool.
(canceled)
A packer, the packer comprising:
- a mandrel rotatably supported by downhole piping during operation of the packer in a wellbore;
- at least one packer element disposed around a portion of the mandrel for hydraulically sealing an upper area in a casing from a lower area in the casing;
- a wedge element disposed around a portion of the mandrel adjacent to the at least one packer element;
- at least one slip element disposed around the mandrel adjacent to the wedge element;
- a drag block assembly rotatably disposed around a portion of the mandrel to frictionally engage the casing;
- and
- a J-pin rotatably disposed within the drag block assembly for engaging a J-slot area disposed in the mandrel.
4 more elements
A packer, the packer comprising:
- a mandrel supported by downhole piping;
- at least one packer element disposed around a portion of the mandrel for hydraulically sealing an upper area in a casing from a lower area in the casing;
- a wedge element disposed around a portion of the mandrel adjacent to the at least one packer element;
- at least one slip element disposed around the mandrel adjacent to the wedge element;
- a drag block assembly disposed around a portion of the mandrel to frictionally engage the casing;
- and
- a jet port disposed therein above the at least one packer element to circulate fluid outside the packer and above the at least one packer element to prevent sand accumulation during fracturing operations when the packer is in a set position, the jet port in fluid communication with the downhole piping.
4 more elements
Dependencies are inferred from the claim text.