河北省柏乡县干热岩地热资源初探

Prebminary Study on Geothermal Resources of Hot Dry Rock in Hebei Province Baixiang County

在充分分析柏乡地区地热地质特征的基础上,搜集和分析了研究区大地热流值、地热增温率、钻孔测温、参考温度、岩石热导率和岩石生热率等地热参数数据。首先计算出柏乡地区干热岩150℃时埋深以及3~10 km深度处的地温,再通过体积法计算出各层段的干热岩地热资源量,最后初步探讨了干热岩在平面和剖面上的分布特征,进而圈定干热岩勘查远景区。

Based on the research status of geological characteristics of research area,the thermal parameters data of heat flow, geothermal gradient, hole- bottom and surface temperature ,thermal conductivity and heat generation of rock,and radioactive elements enrichment layer thickness instudy area were collected. First,the temperature of deep part of Baixiang was calculated. Then,the hot dry rock potential in different structural units and the 150 ℃ ,depth ,by volume method, was evaluated. Finally, the distribution characteristic of hot dry rock on the plane and profile was discussed ,and the favorable zones were selected. This study shows a great potential of hot dry rock geothermalresource in Baixiang.