Packer slips for CRA completion

Details Packer slips for CRA completion Packer slips for CRA completion

1991-04-12

1992-07-21

Neuder, William P.

Wells

Packers or plugs

With expanding anchor

166134, E21B 33129

Patent

active

051314681

ABSTRACT:
A packer slip has multiple anchor studs which are press fit in an interference union onto a slip plate constructed of a corrosion resistant alloy material. The anchor studs are located on the slip plate in such a manner as to distribute applied load forces evenly onto the well casing. The anchor studs have ribs formed by longitudinal serrations, with the stud body and ribs being truncated along a planar face, thereby producing a cutting edge for penetrating and gripping a well casing, which is also constructed of corrosion resistant alloy material. The ribs are separated circumferentially by longitudinal grooves formed in the main body portion of each stud. According to this arrangement, the grooves provide flow space for rib material which flows in response to compression forces arising as a press-fit interference union is produced. Each stud is made of a material which has a hardness which is substantially greater than the hardness of CRA alloy casing material, such as carbide compounds including refractory carbides and cemented refractory carbides.

REFERENCES:
patent: 2743781 (1956-05-01), Lane
patent: 4044826 (1977-08-01), Crowe
patent: 4081203 (1978-03-01), Fuller
patent: 4258787 (1981-03-01), Amancharla
patent: 4545431 (1985-10-01), Fore

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