Method and apparatus for perforating a well liner and for fractu

Details Method and apparatus for perforating a well liner and for fractu Method and apparatus for perforating a well liner and for fractu

1991-02-05

1992-04-14

Neuder, William P.

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

166308, 166376, 175 452, E21B 4326

Patent

active

051039117

ABSTRACT:
A liner at the bottom of an oil or gas well is perforated and the surrounding formation is subsequently fractured by inserting into the liner a perforating and fracturing apparatus comprising a pair of packers that can be positioned around fragile spots of the liner, and subsequently injecting a fluid or fluids at an elevated pressure into the area between the packers in order to perforate the liner at the locations of the fragile spots and to create fractures in the formation surrounding these spots.

REFERENCES:
patent: 2436198 (1948-02-01), Cardwell et al.
patent: 3106959 (1963-10-01), Huitt et al.
patent: 3361204 (1968-01-01), Howard et al.
patent: 3417827 (1968-12-01), Smith et al.
patent: 3602308 (1971-08-01), Vincent
patent: 4669539 (1987-06-01), Barrington
patent: 4673039 (1987-06-01), Mohaupt

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