Surfactant-enhanced alkaline flooding for light oil recovery. Final report

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In this report, we present the results of our experimental and theoretical studies in surfactant-enhanced alkaline flooding for light oil recovery. The overall objective of this work is to develop a very cost-effective method for formulating a successful surfactant-enhanced alkaline flood by appropriately choosing mixed alkalis which form inexpensive buffers to obtain the desired pH (between 8.5 and 12. 0) for ultimate spontaneous emulsification and ultralow interfacial tension. In addition, we have (1) developed a theoretical interfacial activity model for determining equilibrium interfacial tension, (2) investigated the mechanisms for spontaneous emulsification, (3) developed a technique to monitor low water content ... continued below

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124 p.

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Wasan, D.T. May 1, 1996.

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Description

In this report, we present the results of our experimental and theoretical studies in surfactant-enhanced alkaline flooding for light oil recovery. The overall objective of this work is to develop a very cost-effective method for formulating a successful surfactant-enhanced alkaline flood by appropriately choosing mixed alkalis which form inexpensive buffers to obtain the desired pH (between 8.5 and 12. 0) for ultimate spontaneous emulsification and ultralow interfacial tension. In addition, we have (1) developed a theoretical interfacial activity model for determining equilibrium interfacial tension, (2) investigated the mechanisms for spontaneous emulsification, (3) developed a technique to monitor low water content in oil and (4) developed a technique to study water-in-oil emulsion film properties, (5) investigated the effect of surfactant on the equilibrium and transient interfacial tension, (6) investigated the kinetics of oil removal from a silica surface, and (7) developed a theoretical interfacial activity model for determining equilibrium interfacial tension, accounting for added surfactant. The results of the studies conducted during the course of this project are discussed.

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124 p.

Notes

OSTI as DE96001233

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  • Other Information: PBD: May 1996

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  • Other: DE96001233
  • Report No.: DOE/BC/14883--15
  • Grant Number: AC22-92BC14883
  • DOI: 10.2172/240455 | External Link
  • Office of Scientific & Technical Information Report Number: 240455
  • Archival Resource Key: ark:/67531/metadc667378

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 4, 2015, 12:51 p.m.

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Wasan, D.T. Surfactant-enhanced alkaline flooding for light oil recovery. Final report, report, May 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc667378/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.