Releasing slips for oil well tool

a technology for oil wells and tools, applied in the direction of fluid removal, sealing/packing, borehole/well accessories, etc., can solve the problems of slipping into the casing wall while holding down the tool, affecting and the slipping can be extremely difficult to release, so as to achieve the effect of improving the service life of the releasing slip
US20090321067A1Inactive Publication Date: 2009-12-31KLINE ALBERT E +1
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
KLINE ALBERT E
Publication Date
2009-12-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

Releasing slips for use with a downhole tool, a tool for deploying downhole in a well utilizing the releasing slips and a well in which a downhole tool is deployed utilizing the releasing slips of the invention is described herein. The tool has a plurality of slips for selective engagement with a wall of a wellbore. The slips include releasing slips and biting slips. The releasing slips have a low friction surface, e.g., a substantially smooth surface for engaging the wall of the wellbore. The smooth wall engaging face of the releasing slips facilitate easy release of the slips, thereby facilitating easy removal of the downhole tool. The slips may include a plurality of hardened members that protrude from the wall engaging face of the releasing slips to reduce wear on the face of the releasing slip.
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Description

FIELD OF THE INVENTION

[0001] The invention relates to an improved releasing slip for use with a hold down tool / bridge plug / packer for lowering into a wellbore. In particular, the releasing slip of the invention has a low friction face to facilitate ease of release.BACKGROUND OF THE INVENTION

[0002] A production packer is a standard component of completion hardware in oil and gas wells. Production packers are used to provide a seal between the outside of production tubing and the inside of a casing, liner, or wellbore wall. When recovering oil and gas from a well, in many geological formations it is necessary to isolate the zone containing the oil and gas producing formation from the remainder of the underground structure so as to prevent contamination of the oil and gas producing zone from salt water or other undesirable contaminants.

[0003] Packers may be lowered into the well and expanded to isolate the oil and gas producing zone. Packers may be placed above and below the producing zon...

Claims

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