Foam drilling and workover in high temperature wells

Details Foam drilling and workover in high temperature wells Foam drilling and workover in high temperature wells

1978-03-17

1980-05-06

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85C, 252 855R, C09K 702

Patent

active

042016789

ABSTRACT:
A method for conducting foam drilling and workover operations in a bore hole penetrating a subterranean reservoir, particularly a high-temperature reservoir such as a geothermal reservoir, employing an aqueous foaming solution of about 0.08 to 1.0 percent by weight of an amphoteric betaine, about 0.02 to 0.4 percent by weight of a salt of a linear aliphatic or alkyl aryl hydrocarbon sulfonate, and, optionally, from 0.03 to 3.5 percent by weight unneutralized ammonia.

REFERENCES:
patent: 3275552 (1966-09-01), Kern et al.
patent: 3318379 (1967-05-01), Bond et al.
patent: 3486560 (1969-12-01), Hutchison et al.
patent: 3572439 (1971-03-01), Hutchison et al.
patent: 4013568 (1977-03-01), Fischer et al.
patent: 4092252 (1978-05-01), Fischer et al.
McCutcheon's Detergents & Emulsifiers, 1973 North American Edition, Published by McCutcheon's Division, Allured Publishing Corp., N. J., pp. 26 and 193.

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