Method and apparatus for jarring

Details Method and apparatus for jarring Method and apparatus for jarring

1994-08-24

1996-04-16

Neuder, William P.

Wells

Processes

Freeing stuck object, grappling or fishing in well

166178, 175296, E21B 31107

Patent

active

055073476

ABSTRACT:
A method and apparatus for jarring an object in a wellbore is disclosed. Generally, the apparatus contains a body member having an inner and outer diameter, an operator mandrel slidably disposed within the inner diameter of the body member, and a selective attachment member for selectively attaching and detaching the operator mandrel to the body member. The apparatus may also contain a mechanism to reset the operator mandrel with the body member when the operator mandrel has been released.

REFERENCES:
patent: 2122751 (1938-07-01), Phipps
patent: 3203482 (1965-08-01), Lyles
patent: 4333542 (1982-06-01), Taylor
patent: 4844157 (1989-07-01), Taylor
patent: 4846273 (1989-07-01), Anderson et al.
patent: 5139086 (1992-08-01), Griffith
patent: 5327982 (1994-07-01), Trahan et al.

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