Calculation and Use of Steam/Water Relative Permeabilities in Geothermal Reservoirs
Abstract/Contents
- Abstract
- A new method to calculate the steam/water relative permeabilities in geothermal reservoirs was developed and applied to field data from Wairakei in New Zealand. This method has the following characteristics compared to previous methods. This method:(i) needs the production flow rate history and the wellhead temperature alone,(ii) evaluates the features of each well separately, and(iii) decreases the scatter of the points on the calculated relative permeability curves. Bottomhole values of the parameters are needed for a more accurate determination of relative permeability curves. There are two ways to evaluate bottomhole conditions. One is by calculation, and the other is by measurement. Methods to calculate the pressure drop and the heat loss in the wellbore were demonstrated. In particular, a new method to calculate the heat loss in the wellbore for finite flow rate was developed. It was also determined which parameters should be measured in future field experiments.Finally, the study showed how to use the resulting relative permeability curves as a basis for analysis of future well tests for geothermal reservoirs.
Description
| Type of resource | text |
|---|---|
| Date created | June 1978 |
Creators/Contributors
| Author | Shinohara, Kiyoshi |
|---|---|
| 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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- Use and reproduction
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Preferred citation
- Preferred Citation
- Shinohara, Kiyoshi. (1978). Calculation and Use of Steam/Water Relative Permeabilities in Geothermal Reservoirs. Stanford Digital Repository. Available at: https://purl.stanford.edu/xn091qc4517
Collection
Master's Theses, Doerr School of Sustainability
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