浅层地温能和地热资源评价方法对比

Comparison Study on Resource Evaluation Methods of Shallow Geothermal Energy and Traditional Geothermal Energy

浅层地温能作为地热学新的分支,其资源特征、评价方法与传统地热存在差异。本文从传统"地热能"与"浅层地温能"的科学内涵入手指出两者的相互关系,对比分析了资源分布规律、资源赋存条件评价方法、资源潜力评价方法。浅层地温能资源分布边界依据地质条件、地理分布和应用目的而相应变化,主要受浅层地温场控制;浅层地温能资源赋存条件评价与传统地热评价过程不完全一致,资源适宜区划分受到开发利用方式的限制,浅层地温能资源的计算实际是对地球浅表热量调蓄能力的评价。浅层地温能和地热资源评价的区别与联系,凸出了浅层地温能资源的特殊性,提高了热能资源勘查评价的科学性和合理性。

As a new branch of geothermal energy, the shallow geothermal energy has many differences from the traditional geothermal energy, such as resource characters, evaluation methods etc. The two kinds of resource correlations were set forced through definition the traditional geothermal energy and shallow geothermal energy. The paper elaborates and compares the resource evaluation system, the resource distribution, occurrence condition evaluation, and the resource potential evaluation. Distribution boundary of shallow geothermal energy resources varies with geological conditions, geographical distribution and application purpose, and is controlled by shallow geothermal field primarily. The occurrence condition evaluation on the shallow geothermal energy is not usually same as that of the traditional geothermal energy, that is to say, the suitable area division orders are just opposite for the two kinds of energy resources development and utilization. In fact, the resource calculation of shallow geothermal energy is the heat capacity evaluation on the Earth surface and the shallow. The specificity of shallow geothermal energy is shown obviously by the study on the differences and correlations, so it can be favorable to improve the effectiveness for geothermal exploration and evaluation.