Shale-stabilizing drilling fluids and method for producing same

Details Shale-stabilizing drilling fluids and method for producing same Shale-stabilizing drilling fluids and method for producing same

1986-10-16

1988-01-12

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, C09K 702

Patent

active

047190213

ABSTRACT:
Shale-stabilizing drilling fluids for use in connection with subterranean well drilling operations. The drilling fluids contain polyvalent metal/guanidine complexes, especially aluminum/guanidine complexes, and preferably contain guanidinium ion and aluminate ion accompanied by (a) cationic starches and (b) a glycol selected from the group consisting of polybutylene glycol, polyethylene glycol, polypropylene glycol and mixtures thereof.

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patent: 4098700 (1978-07-01), Hartfiel
patent: 4356096 (1982-10-01), Cowan et al.
patent: 4440649 (1984-04-01), Loftin et al.
patent: 4457372 (1984-07-01), Doster et al.

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