Pore Scale Analysis and Simulation of Imbibition with Variation in Interfacial Tension
Abstract/Contents
- Abstract
- This report presents a detailed, physically-based analysis of three primary imbibition experiments performed by Schechter e t al. [41]. Specifically, water-wet Berea cores were fully saturated with iso-octane, and brine was allowed to contact all sides of the core. Water then imbibed into the core by a combination of gravitational and capillary forces. These experiments showed that as the IFT between brine and iso-octane was reduced, and consequently at the same time the difference in density between the fluids was also reduced, the rate of imbibition showed a noticeable increase. These anomalous results are explained by analyzing both the macroscopic and microscopic forces involved in imbibition. The analysis shows that the lack of an initial water saturation in the Berea cores strongly influences the results of the experiments. Time scale analysis indicates that because of the lack of initial water saturation in the cores, the trapping of the oil is reduced, leading to almost 100% recovery at an IFT value of 0.1 rniV/rn. When an experiment was done with 19% initial water saturation in the core, the residual oil saturation at 0.1 mN/m was 55%, confirming the conclusions made from the time scale analysis.
Description
| Type of resource | text |
|---|---|
| Date created | December 1994 |
Creators/Contributors
| Author | Fenwick, Darryl Hyde |
|---|---|
| Primary advisor | Orr Jr., Franklin M. |
| 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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Preferred citation
- Preferred Citation
- Fenwick, Darryl Hyde. (1994). Pore Scale Analysis and Simulation of Imbibition with Variation in Interfacial Tension. Stanford Digital Repository. Available at: https://purl.stanford.edu/sy465zx2770
Collection
Master's Theses, Doerr School of Sustainability
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