Wu, Y. and Iglauer, S. and Shuler, P. and Tang, Y. and Goddard, W. A., III (2010) Alkyl Polyglycoside-Sorbitan Ester Formulations for Improved Oil Recovery. Tenside Surfactants Detergents, 47 (5). pp. 280-287. ISSN 0932-3414 http://resolver.caltech.edu/CaltechAUTHORS:20101129-133654786
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We measured interfacial tensions (IFT) of aqueous alkyl polyglucoside (APG) systems formulated with sorbitan ester-type cosurfactants against n-octane. The study focused on low to ultra-low IFT systems which are relevant for enhanced oil recovery (EOR). In addition, we measured equilibrium adsorption concentrations of these surfactants and cosurfactants onto kaolinite clay, commonly found in oil reservoirs. We present one surfactant EOR laboratory flood experiment with one selected APG-sorbitan ester formulation with which we recovered 94% of initial oil in place (IOIP).
|Additional Information:||© 2010 Carl Hanser Publisher, Munich. Received: 12.01.2010; Revised: 18.05.2010. We thank the US Department of Energy (DE-FC26-01BC15362) for providing financial support for this project and we thank ChevronTexaco and Akzo Nobel for technical assistance. We also thank the Cognis Corporation for supplying APC surfactant samples.|
|Subject Keywords:||Alkyl polyglycoside; sorbitan ester; cosurfactants; Span; Tween; ultra-low interfacial tension; enhanced oil recovery; surfactant flood; chemcial flood|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||29 Nov 2010 22:43|
|Last Modified:||26 Dec 2012 12:41|
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