Effect of temperature on heavy oil/water relative permeabilities

Date

1999-01-01

Author

Akın, Serhat
Brigham, William E.

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In the first part of this study, the accuracy of the JBN technique for the determination of heavy oil/water relative permeabilities, and the effect of temperature on relative permeabilities is examined by giving numerical as well as experimental examples. Using the JBN technique leads to a false temperature dependence of relative permeability curves. In the second part, we present unsteady state relative permeability experiments with initial brine saturation at differing temperatures conducted using South Belridge sand and heavy oil. A new three step experimental technique an analysis procedure were developed to test the effect of temperature on relative permeabilities. In this technique, an ambient temperature unsteady-state relative permeability run is conducted in the first stage, and following that the temperature is increased twice (i.e. 122 °F and 150 °F). Two phase saturation profiles along the sand pack are measured using a CT scanner. A commercial black oil simulator, coupled with a global optimization code is then used to estimate two phase relative permeabilities. Experimental saturation profiles, differential pressure and recovery data collected from both the ambient and higher temperature data are used in the numerical model. It has been observed that a single set of relative permeability curves can represent both the ambient and high temperature parts of the experiment. This suggests that relative permeability is not a function of temperature at least for the system tested.

Subject Keywords

Relative permeability

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0032637882&origin=inward
https://hdl.handle.net/11511/71831

DOI

https://doi.org/10.2523/49021-ms

Conference Name

Proceedings of the 1999 SPE International Thermal Operations and Heavy Oil Symposium , Bakersfield, CA, USA (1999)

Collections

Department of Petroleum and Natural Gas Engineering, Conference / Seminar

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Citation Formats

S. Akın and W. E. Brigham, “Effect of temperature on heavy oil/water relative permeabilities,” 1999, p. 275, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0032637882&origin=inward.