Well abandonment system

Details Well abandonment system Well abandonment system

1990-12-21

1992-04-07

Neuder, William P.

Wells

Means for perforating, weakening, bending or separating pipe...

Cutter rotates circumferentially of pipe

294 8634, E21B 2900

Patent

active

051018950

ABSTRACT:
A remedial bottom hole assembly for casing retrieval is disclosed having a spear and an inflatable packer utilized in combination with a pipe cutter. With such an assembly, after the spear is set and the casing is cut, the packer can be inflated to determine if circulation can be established without the removal of the spear and pipe cutter.

REFERENCES:
patent: 3087546 (1963-04-01), Woolley
patent: 3332492 (1967-07-01), Thomas
patent: 3489211 (1970-01-01), Kammerer, Jr.
patent: 4047568 (1977-09-01), Aulenbacher
patent: 5010955 (1991-04-01), Springer

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