Modelling Two Phase Flow in Low Temperature Geothermal Wells
- Key words
- geothermal well, low enthalphy reservoirs, two phase flow, flow pattern prediction, pressure drop calculation, wellbore simulator
- Location
- Romania
- Conference
- World Geothermal Congress
- Year
- 1995
- Session
- SECTION 7 - Field Management and Monitoring
- Language
- English
- Paper number
- 3-antics
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Abstract
Geothermal wells in Romania produce geothermal water with temperatures in the range of 55 to with gas water ratio of 2.2 varies between and the main dissolved gas is methane about 99 Along the upward flow in geothermal wells, when the pressure drops below the bubble point pressure of the gasses, two phase flow occurs. To the production tubing diameter, and setting depth for maintaining artesian flow of the wells it is required to determine the pressure drop along the well. A mechanistic approach (Ansari et al, to two phase flow modelling in wells was considered. The model proved to be reliable in modelling two phase pressure drops in low temperature wells. A computer code was designed for the model to speed up the calculation.
Copyright 1995, International Geothermal Association. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.