地下含水层热储井位置选择和布置

地下含水层热储开发技术面临一系列问题,寻找适合热储用的含水层和合理布置热储井是解决问题的第一步.综合考虑含水层的地质结构特征,适合热储的含水层应该是承压含水层,热储应该采用同层方式.单个热储井的影响半径可以通过热平衡和热扩散原理求得.合理布置热储井间的相对位置,可以有效抵消原有地下水的流动以及渗流系数不一致的影响.利用井之间的渗流耦合作用,在热储井之间布置调节井,主动控制热储水的波及范围,可以实现热储井布置的相对"紧凑".

Choice and arrangement of aquifer thermal energy storage well's position

There are a series of problems in utilizing aquifer thermal energy storage (ATES) technology. Among them, the first problem is to search for the suitable aquifer thermal energy storage and to arrange the thermal energy storage wells reasonably. A comprehensive analysis of aquifer's geologic characteristics ascertains that the confined aquifer is the aquifer suitable for thermal energy storage and that the thermal energy storage mode is supposed to adopt the mode of thermal engergy storage in the same layer. The influence radius of a single well can be predicted through analyzing the heat balance and the thermal diffusion. Reasonable arrangement of the thermal energy storage wells can avoid the influence of original groundwater flow and of the variance of permeability coefficient. To use the coupling action of infiltration between thermal energy storage wells, to arrange special wells between thermal energy storage wells and to control the range of thermal energy water initiatively can obtain the compact result of arrangement between thermal energy storage wells.