Barium compound-containing thickening agent and drilling fluids

Details Barium compound-containing thickening agent and drilling fluids Barium compound-containing thickening agent and drilling fluids

1984-02-13

1986-02-11

Willis, Prince E.

Compositions

Leather or fur treating

2523155, C09K 04

Patent

active

045697701

ABSTRACT:
A drilling fluid comprises uncalcined colloidal attapulgite clay and up to about 10% by weight (of the weight of attapulgite clay) of a barium compound additive such as BaO or Ba(OH).sub.2. The admixture of clay and barium compound may be slurried in either fresh or salt water to provide an aqueous drilling fluid of significantly higher yield than that attainable with prior art drilling fluids.

REFERENCES:
patent: 2529760 (1950-11-01), Bergman
patent: 2856355 (1958-10-01), Weiss et al.
patent: 3148970 (1964-09-01), Smith et al.
patent: 3185642 (1965-05-01), Sawyer et al.
patent: 4318732 (1982-03-01), Sawyer

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