FIELD: oil producing industry. SUBSTANCE: method involves destruction of the polymer clay drilling mud crust by the use of hydrochloric acid, oxidative destruction of molecules of polyacrylamide with ferric chloride in the presence of sulfur-containing substances used as reducing agents, and oxidation of the clayey component followed by coagulation to the suspension condition. EFFECT: higher efficiency. 2 cl
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Authors
Dates
1995-11-10—Published
1992-07-24—Filed