【摘要】 深部与浅部热储之间由于地质构造等原因存在潜在的水力裂隙连通，因此认清其传热传质现象对于合理开采深部与浅部地热具有重要意义。以200 m深采水井与2 000 m深回灌井为对象，通过数值模拟研究了50年运行情景下影响采水井出口温度的参数，使用复合标度灵敏度方法对影响参数的重要性进行分析。研究表明：裂隙宽度越大、裂隙长度越短，出水温度上升速率越快；随着裂隙高度的增加，出水温度有所上升；在研究范围内，补给位置离裂隙越近，50年末出水温度越低；补给强度越大，出水温度上升越快，50年末温度越低；补给温度越高，出水温度影响不大，但回灌井周围地层温度越高；影响出水温度的因素按重要程度依次为裂隙宽度、补给位置、补给强度、采水位置、补给温度、裂隙高度和裂隙长度。更多还原

【Abstract】 Due to geological structure and other reasons, there are potential hydraulic connections between shallow and deep geothermal reservoir. Therefore, it is of great significance to recognize the phenomenon of heat and mass transfer for rational exploitation of deep and shallow geothermal. The parameters affecting the outlet temperature of production well under 50 years of operation were studied by numerical simulation using 200 m deep production well and 2 000 m deep injection well. The importance of the influence parameters was analyzed by using the composite scale sensitivity method. The results show that the higher crack width and the shorter crack length will result in a faster rise rate of outlet temperature. With the increase of fracture height, the outlet temperature of producing well increases. In the study range, the closer the recharge location is to the fracture, the lower the outlet temperature of the producing well will be at the end of 50 years. The higher recharge intensity leads to a faster temperature rise and a lower temperature at the end of 50 years. The higher recharge temperature results in the less influence of the outlet temperature, but a higher formation temperature around the recharge well. The factors influencing the outlet temperature of producing well are fracture width, recharge position, recharge intensity, water production position, recharge temperature, fracture height and fracture length in order of importance.更多还原