湖南省干热岩资源潜力及有利区分析
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摘要
根据湖南省区域地质背景,高热流区均处于板块构造带或构造活动带,在湖南幕阜山、沩山、诸广山等地区分布有范围较大的火山岩体,说明湖南省具备干热岩地热资源形成的区域构造条件。通过对省内出露地层、岩浆岩、构造、地温梯度和大地热流综合分析,发现湖南省花岗岩类岩体发育,存在大地热流值较高、生热率及放射性热保存较好的干热岩隐伏岩体。在此基础上,利用地球物理方法圈定了7个干热岩有利区。并通过体积法估算2～6 km深度有利区干热岩资源量约达1.18万亿t标准煤。
According to the geological background of Hunan province, the high heat flows are all in the plate tectonics or active tectonic zone. There are a wide range of volcanic rocks in the mountainous areas of the Mufu-mountain, Weishan and Zhuguang mountains of Hunan, indicating that the Hunan province have the regional tectonic conditions for the geothermal resources of hot dry rocks(HDR). By comprehensive analyzing of the strata, magmatic rocks, tectonic, geothermal gradient and heat flow, it is found that the development of granite rock mass in our province has high heat flow value, high heat rate and high heat preservation of HDR. On this basis, have used geophysical methods to trap seven favorable areas of HDR. By means of volume method, the amount of the hot dry rock in the favorable area of 2 to 6 km is estimated to be about 1.18 trillion tons of standard coal.
According to the geological background of Hunan province, the high heat flows are all in the plate tectonics or active tectonic zone. There are a wide range of volcanic rocks in the mountainous areas of the Mufu-mountain, Weishan and Zhuguang mountains of Hunan, indicating that the Hunan province have the regional tectonic conditions for the geothermal resources of hot dry rocks(HDR). By comprehensive analyzing of the strata, magmatic rocks, tectonic, geothermal gradient and heat flow, it is found that the development of granite rock mass in our province has high heat flow value, high heat rate and high heat preservation of HDR. On this basis, have used geophysical methods to trap seven favorable areas of HDR. By means of volume method, the amount of the hot dry rock in the favorable area of 2 to 6 km is estimated to be about 1.18 trillion tons of standard coal.
引文
[1]汪集旸.地热学及其应用[M].北京:科学出版社,2015.
[2]王贵玲,张薇,梁继运,等.中国地热资源潜力评价[J].地球学报,2017,38(4):449-450,134,451-459.
[3]龙西亭,袁瑞强,邓新平,等.汝城干热岩地热资源研究[J].科技导报,2015,33(19):68-73.
[4]张杨.干热岩形成机理及开发潜力研究——以松辽盆地为例[D].西安:长安大学,2016.
[5]杨丽,孙占学,高柏.干热岩资源特征及开发利用研究进展[J].中国矿业,2016,25(2):16-20.
[6]蔺文静,刘志明,马峰,等.我国陆区干热岩资源潜力估算[J].地球学报,2012,33(5):807-811.
[7]蔺文静,甘浩男,王贵玲,等.我国东南沿海干热岩赋存前景与靶区选址研究[J].地质学报,2016,90(8):2 043-2 058.
[8]杨立中,孙占学,刘金辉,等.中国典型干热岩潜力区的地热深井部署[J].地质与勘探,2017,53(2):355-360.
[9]汪集旸,胡圣标,庞忠和,等.中国大陆干热岩地热资源潜力评估[J].科技导报,2012,30(32):25-31.
[2]王贵玲,张薇,梁继运,等.中国地热资源潜力评价[J].地球学报,2017,38(4):449-450,134,451-459.
[3]龙西亭,袁瑞强,邓新平,等.汝城干热岩地热资源研究[J].科技导报,2015,33(19):68-73.
[4]张杨.干热岩形成机理及开发潜力研究——以松辽盆地为例[D].西安:长安大学,2016.
[5]杨丽,孙占学,高柏.干热岩资源特征及开发利用研究进展[J].中国矿业,2016,25(2):16-20.
[6]蔺文静,刘志明,马峰,等.我国陆区干热岩资源潜力估算[J].地球学报,2012,33(5):807-811.
[7]蔺文静,甘浩男,王贵玲,等.我国东南沿海干热岩赋存前景与靶区选址研究[J].地质学报,2016,90(8):2 043-2 058.
[8]杨立中,孙占学,刘金辉,等.中国典型干热岩潜力区的地热深井部署[J].地质与勘探,2017,53(2):355-360.
[9]汪集旸,胡圣标,庞忠和,等.中国大陆干热岩地热资源潜力评估[J].科技导报,2012,30(32):25-31.