Visualization of solution Gas Drive in Viscous Oil
Abstract/Contents
- Abstract
- Several experimental studies of solution gas drive are available in the literature, but almost all of the studies have used light oil. Solution gas drive behavior, especially in heavy oil reservoirs, is poorly understood. Hence, experiments were performed in which pore-scale solution gas drive phenomena were viewed in water/carbon dioxide and viscous oil/carbon dioxide systems. A new pressure vessel was designed and constructed to house silicon-wafer micromodels that previously operated at low (< 3 atm) pressure. The new apparatus is used for the visual studies. Several interesting phenomena were viewed. The repeated nucleation of gas bubbles was observed at a site occupied by dirt. The dissolution of a gas bubble into the liquid phase was recorded at the same nucleation site. Several gas bubbles temporarily adhered to pore walls after nucleation. Liquid viscosity affected the ease with which gas bubbles coalesced. More viscous solutions result in slower rates of coalescence. The transport of solid particles on gas-liquid interfaces was also observed.
Description
| Type of resource | text |
|---|---|
| Date created | September 1999 |
Creators/Contributors
| Author | George, David Scot |
|---|---|
| Primary advisor | Kovscek, Anthony R. |
| 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
- George, David Scot. (1999). Visualization of solution Gas Drive in Viscous Oil. Stanford Digital Repository. Available at: https://purl.stanford.edu/sp404cx9759
Collection
Master's Theses, Doerr School of Sustainability
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