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Branched Alkyl Alcohol Propoxylated Sulfate Surfactants for Improved Oil Recovery

Wu, Y. and Iglauer, S. and Shuler, P. and Tang, Y. and Goddard, W. A., III (2010) Branched Alkyl Alcohol Propoxylated Sulfate Surfactants for Improved Oil Recovery. Tenside Surfactants Detergents, 47 (3). pp. 152-161. ISSN 0932-3414.

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This investigation considers branched alkyl alcohol propoxylated sulfate surfactants as candidates for chemcial enhanced oil recovery (EOR) applications. Results show that these anionic surfactants may be preferred candidates for EOR as they can be effective at creating low interfacial tension (1FT) at dilute concentrations, without requiring an alkaline agent or cosurfactant. In addition, some of the formulations exhibit a low 1FT at high salinity, and hence may be suitable for use in more saline reservoirs. Adsorption tests onto kaolinite clay indicate that the loss of these surfactants can be comparable to or greater than other types of anionic surfactants. Surfactant performance was evaluated in oil recovery core flood tests. Selected formulations recovered 35 - 50 % waterflood residual oil even with dilute 0.2 wt% surfactant concentrations from Berea sandstone cores.

Item Type:Article
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Goddard, W. A., III0000-0003-0097-5716
Additional Information:© 2010 Carl Hanser Publisher, Munich. Received: 04. 10. 2009. Revised: 15.01. 2010. This work was conducted at the California Institute of Technology and financially supported by the Department of Energy (grant DE-FC26-01BC15362). The authors thank Sasol North Amercia Inc. for supplying suifactant samples and Chevron and Akzo Nobel for their collaboration on this project.
Funding AgencyGrant Number
Department of EnergyDE-FC26-01BC15362
Subject Keywords:Alcohol propoxylated sulfate; Alfoterra; ultra-low interfacial tension; enhanced oil recovery; surfactant adsorption; surfactant flooding; chemical flooding
Issue or Number:3
Record Number:CaltechAUTHORS:20100810-143228027
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19376
Deposited By: Tony Diaz
Deposited On:10 Aug 2010 21:47
Last Modified:26 Nov 2019 11:15

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