Determining residual oil saturation by injecting salts of carbon

Details Determining residual oil saturation by injecting salts of carbon Determining residual oil saturation by injecting salts of carbon

1985-11-22

1987-03-03

Suchfield, George A.

Wells

Processes

With indicating, testing, measuring or locating

166300, 436 28, 436 29, E21B 4322, E21B 4700

Patent

active

046468323

ABSTRACT:
Residual oil saturation is determined by injecting water containing or contacting dissolved halocarboxylic acid salt and carbonate salt into an oil and water containing reservoir and chromatographically analyzing the patterns of the concentrations of in situ generated CO.sub.2 and water soluble acid salt in fluid produced from the reservoir.

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patent: 3990298 (1976-11-01), Deans
patent: 4122896 (1978-10-01), Scheuerman et al.
patent: 4303411 (1981-12-01), Chen et al.
patent: 4523642 (1985-06-01), Venkatesan

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