Use of ground, sized cocoa bean shells as a lost circulation mat

Details Use of ground, sized cocoa bean shells as a lost circulation mat Use of ground, sized cocoa bean shells as a lost circulation mat

1981-09-28

1984-10-02

Guynn, Herbert B.

Compositions

Leather or fur treating

175 72, C09K 702

Patent

active

044746652

ABSTRACT:
A lost circulation controller for use in drilling fluids formed from cocoa bean shell material having a particle size distribution from 2 to 100 mesh (U.S. Std.) with at least about 25 percent by weight of said particulate material being from 2 to 10 mesh (U.S. Std.).

REFERENCES:
patent: 1807082 (1931-05-01), Boynton
patent: 2440789 (1948-05-01), Van der Pyl
patent: 2779417 (1957-01-01), Clark et al.
patent: 2943680 (1960-07-01), Scott et al.
patent: 3574099 (1971-04-01), Ryals et al.
patent: 4070487 (1978-01-01), Trout et al.
patent: 4156030 (1979-05-01), Eggen

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