Evaluation Of The Effects Of Surfactants On Gravity Drainage From Unconsolidated Sands
Abstract/Contents
- Abstract
- A series of laboratory experiments were conducted in which aqueous surfactant slugs were introduced into gravity drainage through unconsolidated sands. The surfactants used were from the Enordet family developed by Shell Chemical Company. Displacement experiments were conducted in 1-in. inside diameter, unconsolidated sand packs approximately 4 ft in length. Resulting cumulative flow and flow rate data is presented as a function of time.It was found that recovery rate and ultimate recovery can be improved by the presence of surfactant additives, the nature and amount of the effect varying according to the individual surfactant and the concentration used. The overall effect is that of reducing surface tension and thus lowering the residual liquid saturation attributable to capillary forces.
Description
| Type of resource | text |
|---|---|
| Date created | 1993 |
Creators/Contributors
| Author | Montesinos, Adolfo |
|---|---|
| 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 |
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Collection
Master's Theses, Doerr School of Sustainability
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