Alkyl polyglycoside surfactant-alcohol cosolvent formulations for improved oil recovery

被引：135

作者：

Iglauer, Stefan ^{[1
]}

Wu, Yongfu ^{[1
]}

Shuler, Patrick ^{[1
]}

Tang, Yongchun ^{[1
]}

Goddard, William A., III ^{[2
]}

机构：

[1] CALTECH, Div Chem & Chem Engn, PEER Ctr, Covina, CA 91722 USA

[2] CALTECH, Div Chem & Chem Engn, Mat & Proc Simulat Ctr MSC, Pasadena, CA 91106 USA

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2009年 / 339卷 / 1-3期

关键词：

Alkyl polyglycoside; Alcohol cosolvents; Ultra-low interfacial tension; Enhanced oil recovery; MICROEMULSIONS; TENSIONS;

D O I：

10.1016/j.colsurfa.2009.01.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We examine here the suitability of alkyl polyglycosides (APG) for improved oil recovery (IOR) applications. In recent years, these nonionic carbohydrate-based surfactants have become a significant commercial product (80,000 tons/year) with widespread use in household and agricultural products. Our laboratory study determined several characteristics of common APG surfactant formulations, in particular their capability to create low interfacial tensions (IFT) with n-alkane hydrocarbons. Our formulations included a wide range of alcohol cosurfactants with APG surfactants. We found APG-cosurfactant combinations that exhibit low IFT values of 0.01 mN/m or less versus n-octane. Our laboratory tests confirmed these APG formulations can provide useful IFT properties that are largely independent of both salinity and temperature. We report a coreflood test conducted on a Berea sandstone core using a selected formulation that exhibits oil recovery as high as 85% IOIP (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：48 / 59

页数：12

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