Liquid Holdup in Geothermal Wells
- Key words
- Holdup correlation; Pressure and temperature profiles; well simulators; simulation; two-phase flow; spinner
- Conference
- World Geothermal Congress
- Year
- 2005
- Session
- 11. Reservoir Engineering
- Language
- English
- Paper number
- 1109
Full text
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Abstract
Simulation of two-phase flow in geothermal wellbores requires use of empirical correlations for liquid holdup and for friction factor. Use of currently available correlations often yields widely differing results for geothermal wells. A new liquid holdup correlation is devised for cased wellbores using high-quality discharge and downhole pressure and temperature data from flowing geothermal wells. The latter dataset encompasses a wide range of wellbore diameters, discharge rates and flowing enthalpies. The measured wellhead pressures for wells in the dataset display excellent agreement with the pressures computed by using the new holdup correlation.
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