Aqueous drilling and packer fluids

Details Aqueous drilling and packer fluids Aqueous drilling and packer fluids

1981-01-16

1982-07-27

Guynn, Herbert B.

Compositions

Leather or fur treating

252 855R, C09K 702

Patent

active

043416454

ABSTRACT:
Aqueous, clay-containing drilling fluids and packer fluids are modified for reduction of viscosity and gel strength upon addition of water soluble lignosulfonates and particular low molecular weight acrylic copolymers. Enhanced reduction of viscosity and gel strength may be obtained by also adding an ethoxylated phenol surfactant.

REFERENCES:
patent: 2552775 (1951-05-01), Fischer et al.
patent: 2718497 (1955-09-01), Oldham et al.
patent: 2935504 (1960-05-01), King et al.
patent: 3284352 (1966-11-01), Burdyn et al.
patent: 3730900 (1973-05-01), Perricone et al.
patent: 4220585 (1980-09-01), Javora et al.
patent: 4268400 (1981-05-01), Lucas et al.

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