基于Modflow和时间序列法的汝州市温泉镇地热可开采量预测

Prediction of geothermal recoverable amount in Wenquan town of Ruzhou city based on Modflow and time series method

浅层地热资源作为一种埋藏浅、便于开发且清洁环保的可再生新能源,广泛分布于我国中东部的平原地区。为准确预测浅层地热的可开采量,以河南省汝州市温泉镇为例,将三维可视化地下水流建模软件Visual Modflow模拟出的浅层地热储层结果与常规时间序列法计算出的地热可开采量相比较,深入探讨两种方法主要的优缺点,并预测出研究区地热流体的最大可开采量应在2400~3432 m^(3)/d之间。研究结果对当地地热资源的可持续开发利用提供了重要参考依据,同时表明将数值模拟法应用于浅层地热的勘查分析具有重要的价值。

As a renewable new energy source which is shallow buried,easy to develop and clean,shallow geothermal resources are widely distributed in the plains of central and eastern China.In order to accurately predict the recoverable amount of shallow geothermal,Wenquan town in Ruzhou city,Henan province was taken as an example.Combining the results of shallow geothermal reservoir simulated by 3 D visualization groundwater flow modeling software Visual Modflow with the geothermal recoverable amount calculated by conventional time series method,the main advantages and disadvantages of the two methods were deeply discussed,and the maximum recoverable amount of geothermal fluid in the study area was predicted to be between 2400~3432 m^(3)/d.The results provided an important reference for the sustainable development and utilization of local geothermal resources,and it showed that the application of numerical simulation method in the exploration and analysis of shallow geothermal had positive value.