Alcohol-in-oil drilling fluid system

Details Alcohol-in-oil drilling fluid system Alcohol-in-oil drilling fluid system

1991-03-19

1991-12-17

Suchfield, George A.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Indicating, testing or measuring a condition of the formation

175 65, E21B 2100, E21B 4900, C09K 702, C09K 706

Patent

active

050727940

ABSTRACT:
An invert oil emulsion drilling fluid containing oil, an emulsifier such as a fatty acid soap, clay or polymer, and an alcohol such as glycerol or cyclicetherpolyol as the internal phase of the emulsion. A method using substantially water-free drilling fluid and monitoring the influx of formation water into the drilling fluid.

REFERENCES:
patent: 2423144 (1947-07-01), Gregg
patent: 2573960 (1951-11-01), Fischer
patent: 2697692 (1954-12-01), Salathiel
patent: 3301323 (1967-01-01), Parsons
patent: 3639233 (1972-02-01), Schultz et al.
patent: 4053422 (1977-10-01), Walker
patent: 4508628 (1985-04-01), Walker et al.
patent: 4780220 (1988-10-01), Peterson

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