Aqueous drilling fluids and additives therefor

Details Aqueous drilling fluids and additives therefor Aqueous drilling fluids and additives therefor

1976-06-01

1977-12-20

Guynn, Herbert B.

Compositions

Leather or fur treating

252 493, 252 495, C09K 702

Patent

active

040640558

ABSTRACT:
The friction created by rotating and reciprocating a drill pipe in a well penetrating a subterranean formation is reduced by including an ester of an oxazolidine derivative in an aqueous drilling fluid or a mixture of said ester and certain alcohols. This ester of an oxazolidine derivative is represented by the following general formula: ##STR1## wherein n is a whole integer within the range of about 5 to 20.

REFERENCES:
patent: 3014862 (1961-12-01), Tailleur
patent: 3027324 (1962-03-01), Rosenberg
patent: 3738992 (1973-06-01), Frump
patent: 3761410 (1973-09-01), Mondshine et al.
Rosenberg et al., Article Journal of Petroleum Technology, vol. 11, Aug. 1959, pp. 195-202.

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