岩石导热各向异性对干热岩热量富集的影响

干热岩的勘探开发近年来已成为学术界的研究热点，但相关研究大多是从开发角度进行研究，而对干热岩中热量富集传递的研究甚少。为了解干热岩岩体中热量富集与传导机理，通过对前人研究成果的整理与总结，结合构造地质学、传热学、地热学、矿物岩石学等理论方法，进行岩石三轴热导率的实验。结果表明，岩石的三轴热导率存在差异，使得地下热流在岩石中的传导存在各向异性。因此，提出了岩石导热各向异性指数，及干热岩岩体中的热量传导公式，进而研究分析了干热岩岩体中热量传导规律与聚集特征，并认为“热源-热通道-干热岩储层-盖层”的垂向构造组合有利于干热岩中热量的富集。

Effect of Thermal Conductivity Anisotropy on Heat Accumulation of Hot Dry Rock

In recent years,the exploration and development of hot dry rock has become a hot spot in academic circles.In order to understand the mechanism of heat accumulation and conduction in hot dry rocks,an experiment of rock triaxial thermal conductivity was carried out by sorting out and summarizing previous research results and combining theoretical methods such as structural geology,heat transfer,geothermal science and mineral petrology.The results show that there is a difference in the triaxial thermal conductivity of rocks,which leads to the anisotropy of the conduction of underground heat flow in rocks.Therefore,the anisotropic index of rock thermal conductivity and the heat transfer formula of hot dry rock are proposed,and the heat transfer law and aggregation characteristics of hot dry rock are analyzed,and the vertical structural combination of heat source,heat channel,hot dry rock reservoir and cap layer is beneficial to the heat enrichment of hot dry rock.