Two-Phase Streaming Potentials
Abstract/Contents
- Abstract
- The streaming potential behavior of two-phase flow was investigated using both a Pyrex capillary tube and an unconsolidated Pyrex porous medium. The flow of wet steam was simulated with a flowing, room temperature mixture of nitrogen gas and distilled water. The apparatus was validated by the single-phase flow of distilled water through each test section, which resulted in constant E/DP ratios of +0.15 volts/psi for the capillary tube and -0.52 volts/psi for the porous medium. Both two-phase and single-phase capillary tube flow resulted in a positively charged upstream electrode, with respect to the downstream electrode, while each type of porous medium flow caused the upstream electrode to be negatively charged. The magnitude of the two-phase potentials generated in the porous medium (5.5V - 19.7V) were also about four times greater than those generated in the capillary tube (1.1V - 4.5V) for similar flowing gas fractions, T, and pressure drops. In each case these ratios were found to have a profound effect upon streaming potential for T>=0.5, and maximum potentials were generated in the range 0.94< r <0.99. The two-phase, capillary tube streaming potentials were, for most T's and all pressure drops, equal to or smaller than the single phase capillary tube potentials, while the magnitude of the two-phase porous medium potentials were always greater than their single-phase counter-parts.
Description
| Type of resource | text |
|---|---|
| Date created | June 1985 |
Creators/Contributors
| Author | Wheatall, Michael W. |
|---|---|
| Primary advisor | Marsden Jr, Sullivan S. |
| Degree granting institution | Stanford University, Department of Petroleum Engineering |
Subjects
| Subject | School of Earth Energy & Environmental Sciences |
|---|---|
| Genre | Thesis |
Bibliographic information
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- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
Preferred citation
- Preferred Citation
- Wheatall, Michael W. (1985). Two-Phase Streaming Potentials. Stanford Digital Repository. Available at: https://purl.stanford.edu/jh889jc1124
Collection
Master's Theses, Doerr School of Sustainability
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