Plug placement method

Details Plug placement method Plug placement method

1998-05-20

2000-06-13

Lillis, Eileen Dunn

Wells

Processes

Cementing, plugging or consolidating

166285, E21B 3310

Patent

active

060736941

ABSTRACT:
A method for placing a plug at a predetermined location in a wellbore, the method being based on utilising a supporting fluid solidifying after being subjected to shear forces. After placing the supporting fluid and allowing it to develop sufficient strength, the plug material is injected. A preferred example of the fluid is an emulsion comprising polymer material and crosslinking agent separated by phase boundaries prior to the shearing process.

REFERENCES:
patent: 3447608 (1969-06-01), Fry et al.
patent: 3831383 (1974-08-01), Crank
patent: 4275788 (1981-06-01), Sweatman
patent: 4339000 (1982-07-01), Cronmiller
patent: 4917185 (1990-04-01), Jennings, Jr. et al.
patent: 5368103 (1994-11-01), Heathman et al.

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