回灌水温对砂岩热储回灌效果的影响分析——以德州市地热田馆陶组热储为例

Effect Analysis on Reinjection Water Temperature to Reservoir Reinjection in Sandstone——Setting Geothermal Reserve in Guantao Formation in Dezhou City as an Example

根据砂岩孔隙型热储地热流体回灌试验中不同尾水温度与回灌量、回灌水位之间的关系,研究了相同回灌量条件下尾水温度对回灌效果的影响,并通过消除回灌尾水温度对井筒存储效应的影响,将回灌时水位升幅的观测值校正为同一温度下的真实水位升幅,从而对不同温度尾水回灌的渗透性能进行了分析。

According to the relationships between different tail water temperatures and reinjection volume and water level in reinjection experiments of sandstone porous type geothermal reservoirs , the influence of temperature to rein-jection under the conditions of the same reinjection volume has been studied .Through eliminating the influence of temperature to the wellbore storage , converting the observation values of the water level to the real level in the same temperature, the permeability of the tail water reinjection in different temperatures has been analyzed .