【摘要】 本文在分析研究西安地热田西南地热开发区的地质构造、热储特征的基础上 ,首次建立了回灌区地热系统三维数值模型 ,完成了地热弃水回灌的数值模拟研究 ,提出地热弃水回灌层位及回灌水量、回灌对热储层渗流场及温度场的影响等更多还原

【Abstract】 Geothermal resources are widely distributed in China. In recent years, a lot of research work has been carried out on the distribution, utilization, drilling, and exploration of geothermal resources. However, there is almost no record of geothermal reinjection in China. Based on geological characteristics, geophysical and geochemical features of Xi’an low-temperature geothermal field,this paper has established for the first time a 3-D numerical model to simulate the change of temperature and pressure after reinjection. The results show that making reinjection at the depth of 1 450 m to 2 300 m will benefit the reservoir pressure with no remarkable change in temperature.更多还原