科技报告详细信息
Role of Fluid Pressure in the Production Behavior of EnhancedGeothermal Systems with CO2 as Working Fluid | |
Pruess, Karsten | |
Lawrence Berkeley National Laboratory | |
关键词: Heat Transfer; 54; Simulation; Working Fluids; Production; | |
DOI : 10.2172/928785 RP-ID : LBNL--62611 RP-ID : DE-AC02-05CH11231 RP-ID : 928785 |
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美国|英语 | |
来源: UNT Digital Library | |
【 摘 要 】
Numerical simulation is used to evaluate mass flow and heatextraction rates from enhanced geothermal injection-production systemsthat are operated using either CO2 or water as heat transmission fluid.For a model system patterned after the European hot dry rock experimentat Soultz, we find significantly greater heat extraction rates for CO2 ascompared to water. The strong dependence of CO2 mobility (=density/viscosity) upon temperature and pressure may lead to unusualproduction behavior, where heat extraction rates can actually increasefor a time, even as the reservoir is subject to thermaldepletion.
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Files | Size | Format | View |
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928785.pdf | 470KB | download |