山东省干热岩地热资源潜力估算

Estimation of Geothermal Resource Potential of Dry Hot Rock in Shandong Province

摘要:

干热岩是一种清洁的可再生地热资源，随着干热岩的开发利用技术日趋成熟，显示出了其巨大的利用价值。干热岩地热资源潜力评估是进行开发利用的基础工作。本文是在充分研究山东省地质构造背景的基础上，通过野外勘查取样和搜集整理地热参数数据，根据浅部温度资料向地壳深部推算的方法，估算出山东省不同区域3～10km深度范围的温度。利用体积法估算出了山东省3～10km深处的干热岩地热资源量。结果显示，山东省3～10km深度范围内干热源资源量总计为 2.63×1023 J，合8.97×1012 t标准煤，现阶段可利用干热岩资源量按2%的可开采资源量计算，即合1794.4×108t标准煤，大约是全国能源消耗总量的37倍，开发利用潜在价值巨大。

Abstract:

As a clean renewable geothermal resource, dry hot rock resource has been more and more maturely utilized because of its obviously increasing values. Based on fully study on the background of geological structure in Shandong province, through the field survey sampling and collection of geothermal parameter data, according to the method of extrapolating the shallow temperature data to the deep crust, the temperature in the depth range of 3~10km in different areas of Shandong province has been estimated. The volume method is used to estimate the geothermal resources of dry hot rock at the depth of 3~10km. It is showed that the total amount of dry heat source resources in the depth range of 3~10 km is 2.63×1023J, and is equal to 8.97×1012t. At present, the available dry hot rock resources are calculated as 2% of the recoverable resources, that is 1794.4×108t standard coal, which is about 37 times of the total energy consumption of the whole country. It has great potential value in development and utilization.