Super-yield bentonite base drilling fluid

Details Super-yield bentonite base drilling fluid Super-yield bentonite base drilling fluid

1976-06-08

1978-05-02

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85C, C09K 702

Patent

active

040873650

ABSTRACT:
A super-yield bentonite base drilling fluid composition is provided having a yield of more than 500 barrels per ton of bentonite, comprising water, bentonite clay, and a partial calcium salt of polyacrylic acid in an amount greater than about 7% by weight based on the total weight of bentonite. The fluid exhibits excellent viscosity, gelation and filtrate loss characteristics at extremely low bentonite levels.

REFERENCES:
patent: 2552775 (1951-05-01), Fischer et al.
patent: 2702788 (1955-02-01), Dawson
patent: 2718497 (1955-09-01), Oldham et al.
patent: 3558545 (1971-01-01), Lummus
Scanley, Article in World Oil, July 1959, pp. 122, 124, 126, and 128.

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