Well working compositions, method of decreasing the seepage loss

Details Well working compositions, method of decreasing the seepage loss Well working compositions, method of decreasing the seepage loss

1989-10-16

1991-04-02

Stoll, Robert L.

Compositions

Leather or fur treating

252 8512, 252 8515, 252 8551, 252 8514, 252 8513, C09K 700

Patent

active

050045539

ABSTRACT:
The invention provides well working fluid compositions containing oat hulls ground to certain particle size ranges to decrease the seepage loss of the fluid to fluid permeable formations contacted by the compositions. Also provided is a seepage loss additive comprising the ground oat hulls in combination with one or more of ground corn cobs, hydrophobic organophilic water wettable cotton, ground citrus pulp, and ground cotton burrs.

REFERENCES:
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patent: 2943680 (1960-07-01), Scott et al.
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patent: 4428843 (1984-01-01), Cowan et al.
patent: 4629575 (1986-12-01), Weibel
patent: 4836940 (1989-06-01), Alexander
Composition and Properties of Oil Well Drilling Fluids, Walter F. Rogers, 1963, pp. 663-664.

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