Effect of non-condensable gases on the flow of water and steam in geothermal wells
This paper describes a study on the effects of non-condensable gases (IG) represented by carbon dioxide, on the numericallysimulated flow characteristics of water and steam in geothermal wells. The presence of IG affects the thermodynamic conditionsdominating the flow process in the well or within t...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | México |
| Recursos: | Universidad Autónoma Metropolitana |
| Repositorio: | Redalyc-UAM |
| OAI Identifier: | oai:redalyc.org:56841404 |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=56841404 |
| Access Level: | acceso abierto |
| Palavra-chave: | Ciencias de la Tierra two phase flow flow simulation Geothermal wells incondensible gases |
| Resumo: | This paper describes a study on the effects of non-condensable gases (IG) represented by carbon dioxide, on the numericallysimulated flow characteristics of water and steam in geothermal wells. The presence of IG affects the thermodynamic conditionsdominating the flow process in the well or within the reservoir. Most geothermal fluids are generally composed of a mixture ofwater and steam and substantial amounts of IG and salts. Gas concentrations often vary considerably in a geothermal field. Theycan be useful tools for inferring flow patterns both in wells and within geothermal reservoirs. Geothermal fluids also carry a highcontent of dissolved solids and salts. Well and pipeline flow simulation of geothermal fluids requires that thermodynamic andtransport properties be properly accounted for. Several equations and correlations were used to estimate the properties of the H2OCO2 mixture during simulations.The results revealed that the presence of CO2 affects significantly the location of the flashingpoint in the well and the amount of steam produced. |
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