| 摘要 |
<p>A method and composition are described for improving recovery of oil from an oil reservoir. The method includes adding an effective amount of a fatty acid alkyl ester oil recovery composition to an oil reservoir and recovering oil from the reservoir. A composition including in predominant proportion a fatty acid alkyl ester as well as effective concentrations of a surfactant and/or colloid, and an acid. One exemplary composition includes 96% soy methyl ester, 3% surfactant, and 1% vinegar. A method for improving recovery of oil from an oil reservoir including adding a composition including a fatty acid alkyl ester, a surfactant and/or colloid, and an acid. Also methods for breaking an oil-water emulsion and a method for cleaning oil-contaminated soil, objects and wildlife.</p> |
