Computerized Analysis of Thermal Recovery Well Test Data
Abstract/Contents
- Abstract
- The radius of the swept zone is an important parameter in secondary recovery by thermal methods. There have been several methods proposed to determine this parameter from well tests performed on the injection well. Perhaps the most powerful method presently is the pseudo-steady state analysis method where a straight line is found on a plot of well data on Cartesian axes. This method is only valid for the case where there is a high mobility ratio between the swept and unswept zones. Though it has been extended to the case of a low mobility ratio, analysis then becomes virtually impossible. Automated type-curve match offers a new way to analyze well test data. Laplace space determination of parameter gradients allows type-curve match to the most complex of mathematical models. This study shows that automated type-curve match to the two-zone reservoir model can be used to analyze well tests on thermal recovery injection wells. A comparison with the best of present methods, i.e. the pseudo-steady state method, shows that automated type-curve match proves to be better in the determination of swept zone radius when mobility ratio is not high or when multiple flow rates have occurred. In addition automated type-curve match can, in some cases, estimate unswept zone parameters like mobility and porosity-compressibility product. The application of automated type-curve match to two field examples is demonstrated.
Description
| Type of resource | text |
|---|---|
| Date created | June 1984 |
Creators/Contributors
| Author | Barua, Jawahar |
|---|---|
| Primary advisor | Horne, Roland N. |
| 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
- Barua, Jawahar. (1984). Computerized Analysis of Thermal Recovery Well Test Data. Stanford Digital Repository. Available at: https://purl.stanford.edu/fh556sd9761
Collection
Master's Theses, Doerr School of Sustainability
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