The Real Gas Pseudo-Pressure for Geothermal Steam
Abstract/Contents
- Abstract
- Physical properties o f geothermal steam mixtures were compiled as functions of pressure, temperature and composition. Specifically, these properties were ones which relate to isothermal fluid flow in porous media: viscosity, gas deviation factor, and compressibility. Using this information, the real gas pseudo-pressure function, m(p), was numerically evaluated for geothermal steam.Results are presented in the form of tables, graphs, and curve fit equations over the normal range of conditions found in geothermal reservoirs. Tables and equations are computed in both International and Engineering unit systems.At pressures below 130 psia (approximately), physical properties and the real gas pseudo-pressure exhibit behavior close to that which would be expected for an ideal gas, However,over the normal range of reservoir pressures, these values depart from ideal gas behavior. A substantial error might be incurred if reservoir pressure data is analyzed assuming the validity of the perfect gas law. As most reservoirs contain only small amounts of non-condensable gases, it is reasonable t o assume that geothermal steam behaves as pure steam. However, in cases of unusually high carbon dioxide concentration, it is necessary to adjust the physical properties and the real gas pseudo-pressure of the steam mixture.
Description
| Type of resource | text |
|---|---|
| Date created | August 1977 |
Creators/Contributors
| Author | Mannon, Leslie Susan |
|---|---|
| Primary advisor | Atkinson, Paul G. |
| 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
- Mannon, Leslie Susan. (1977). The Real Gas Pseudo-Pressure for Geothermal Steam. Stanford Digital Repository. Available at: https://purl.stanford.edu/gb611yb5188
Collection
Master's Theses, Doerr School of Sustainability
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