Method and apparatus for jarring

Details Method and apparatus for jarring Method and apparatus for jarring

1996-02-07

1998-01-20

Neuder, William P.

Wells

Processes

Freeing stuck object, grappling or fishing in well

166178, 175296, E21B 31107

Patent

active

057092680

ABSTRACT:
An apparatus and method for delivering a jarring action to an object in a well bore is disclosed. Generally, the apparatus comprises a cylindrical housing, with the cylindrical housing being connected to the stuck object; and, a power mandrel disposed within said cylindrical housing, with the power mandrel being threadedly connected to a work string. The invention also includes a latch member adapted to the housing, and a collet member having an end engageable with the latch. A conical member is adapted to set, reset and unlatch the engageable end of the collet. Also included will be an activation piston cooperating with the conical member.

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, Sr.
patent: 5327982 (1994-07-01), Trahan et al.
patent: 5507347 (1996-04-01), Estilette, Sr.

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