Surfactant waterflooding oil recovery method

Details Surfactant waterflooding oil recovery method Surfactant waterflooding oil recovery method

1978-12-15

1980-11-04

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

252 855D, E21B 4322

Patent

active

042314275

ABSTRACT:
Disclosed is a novel surfactant fluid and an oil recovery method using the fluid for recovering oil from subterranean formations thereof by surfactant waterflooding process. The fluid comprises an alkylpolyalkoxyalkylene sulfonate or an alkylarylpolyalkoxyalkylene sulfonate and a stabilizing agent comprising a synergistic mixture of an alkanol and an alkyl phenol. The presence of the mixture of alkanol and phenol improves the phase stability of the fluid, increases the viscosity of the surfactant fluid, and reduces the adsorption of surfactant by the formation.

REFERENCES:
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patent: 3637017 (1972-01-01), Gale et al.
patent: 4018278 (1977-04-01), Shupe
patent: 4077471 (1978-03-01), Shupe et al.
patent: 4088189 (1978-05-01), Shupe
patent: 4110228 (1978-08-01), Tyler et al.
patent: 4110229 (1978-08-01), Carlin et al.
patent: 4120358 (1978-10-01), Kalfoglou

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