Composition and method for drilling high temperature reservoirs

Details Composition and method for drilling high temperature reservoirs Composition and method for drilling high temperature reservoirs

1976-12-02

1978-05-09

Guynn, Herbert B.

Compositions

Leather or fur treating

175 69, 252 85C, C09K 702, C09K 708

Patent

active

040885836

ABSTRACT:
Composition and method for drilling a well into a high temperature subterranean reservoir, such as one containing a geothermal fluid, wherein there is used an aqueous foam drilling fluid containing (1) water, (2) gas, (3) a foaming agent, (4) an erosion and corrosion inhibitor, (5) a water-soluble or water-dispersible carboxyalkyl cellulose ether or polyalkylene oxide polymer which both controls the fluid loss of the foam and toughens it, and, optionally, (6) a bit lubricant and/or (7) an anti-torqueing agent.

REFERENCES:
patent: 3269468 (1966-08-01), Phansalkar et al.
patent: 3313362 (1967-04-01), Schneider
patent: 3486560 (1969-12-01), Hutchison et al.
patent: 3525688 (1970-08-01), Swanson
patent: 3749554 (1973-07-01), Fischer et al.

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