共和盆地恰卜恰地区干热岩资源量初步估算及评价

Preliminary estimation and evaluation of hot dry rock resources in Qiabuqia area of Gonghe basin

干热岩作为一种可再生的新型能源,具有热能大、分布广、开发利用对环境影响小、不受季节等自然条件的影响等优势。为了探究共和盆地恰卜恰地区干热岩资源量,于2013—2017年在青海共和恰卜恰——上塔迈一带实施了4眼干热岩钻孔,根据钻探揭露情况,获取了恰卜恰地区大量干热岩地热地质参数,初步估算评价了恰卜恰地区地热资源量为130.87×10^(18)J,换算标准煤44.71亿t。为后期共和地区干热岩进一步勘查开发奠定了初步基础。

As a clean renewable energy,hot dry rock（ HDR） geothermal resource has the advantages of rich reserves,wide distribution,environment-friendly,and stability. In order to assess the geothermal resources potential of the Qiabuqia area in Gonghe basin,4 HDR boreholes were implemented in the area of Qiabuqia-Shangmaitai in Qinghai province since 2013 to 2017. Based on the drilling data,a large number of thermophysical properties were obtained and the geothermal resources potential were estimated preliminarily as well. Results show that the total geothermal energy is 130. 87 × 10^18 J,which is equivalent to standard coal of 4. 471 × 10^9 t. Detailed analysis of the thermophysical properties and geothermal resources potential can lay the foundation for further HDR exploration and development in the Qibuqia area,Gonghe basin.