| 广西合浦盆地干热岩资源成热条件及潜力评价 |
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| 引用本文： | 康志强,张起钻,管彦武,冯波,袁金福,孙明行,刘德民,王新宇,杨志强,陆济璞,张勤军,冯民豪.广西合浦盆地干热岩资源成热条件及潜力评价[J].吉林大学学报(地球科学版),2020,50(4):1151-1160. |
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| 作者姓名： | 康志强 张起钻 管彦武 冯波 袁金福 孙明行 刘德民 王新宇 杨志强 陆济璞 张勤军 冯民豪 |
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| 作者单位： | 1. 表生地球化学教育部重点实验室(南京大学)/南京大学地球科学与工程学院, 南京 210093;2. 中国-东盟地学合作中心(南宁), 南宁 530023;3. 广西壮族自治区地质矿产勘查开发局, 南宁 530023;4. 吉林大学地球探测科学与技术学院, 长春 130026;5. 吉林大学新能源与环境学院, 长春 130021;6. 广西壮族自治区地质调查院, 南宁 530023;7. 中国地质大学(武汉)地球科学学院, 武汉 430074 |
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| 基金项目： | 广西科技基地和人才专项项目（桂科AD17129052）；广西地质矿产勘查开发局部门预算前期地质勘查项目（桂地矿综2018-12和2018-18 ） |
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| 摘 要： | 为了对广西合浦盆地干热岩资源成热条件及其潜力进行评价，利用广西航磁勘查数据，采用Parker-Oldenburg法反演计算了居里面深度。在此基础上进行大地热流密度值和不同埋深地温计算，发现计算结果与现有测温资料吻合，合浦盆地内西场凹陷和常乐凹陷具有干热岩资源成生条件。结合合浦盆地内基础地质调查资料和油气钻孔资料，分析了合浦盆地干热岩资源的储层和盖层条件。初步圈出2个位于西场凹陷和常乐凹陷的干热岩勘查靶区C1和C2，面积分别为167.10和72.90 km2，干热岩资源量分别为182.48×1015、77.59×1015 J。按20%的采收率，合浦盆地干热岩资源量可开采量为52.01×1015 J，折合标准煤177.48×104 t，占2018年广西全区能源生产总量3 756.69×104 t标准煤的4.72%。在资源量评价基础上，可优先考虑位于合浦盆地西场凹陷的C1靶区开展进一步的勘探工作。
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| 关 键 词： | 干热岩 成热条件 潜力评价 广西合浦盆地 |
| 收稿时间： | 2020-02-15 |
Evaluation of Thermal Conditions and Potential of Dry Hot Rock Resources in Hepu Basin,Guangxi |
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| Kang Zhiqiang,Zhang Qizuan,Guan Yanwu,Feng Bo,Yuan Jinfu,Sun Minghang,Liu Demin,Wang Xinyu,Yang Zhiqiang,Lu Jipu,Zhang Qinjun,Feng Minhao.Evaluation of Thermal Conditions and Potential of Dry Hot Rock Resources in Hepu Basin,Guangxi[J].Journal of Jilin Unviersity:Earth Science Edition,2020,50(4):1151-1160. |
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| Authors: | Kang Zhiqiang Zhang Qizuan Guan Yanwu Feng Bo Yuan Jinfu Sun Minghang Liu Demin Wang Xinyu Yang Zhiqiang Lu Jipu Zhang Qinjun Feng Minhao |
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| Abstract: | Hot dry rock (HDR) is a kind of clean and renewable geothermal resource. The utilization of HDR is of great significance to the improvement of energy structure of Guangxi. The early studies show that the eastern and southern areas of Guangxi have HDR development potential. Based on Guangxi aeromagnetic survey data, the Curie point depth was calculated by using Parker-Oldenburg interface inversion method. The terrestrial heat flow values and temperatures at several different depths were also calculated. It is found that the calculation results are consistent with the actual measurement temperature data, indicating that there are formation conditions for the HDR resources in Xichang and Changle sags in Hepu basin. The reservoir and seal conditions of the HDR resources in Hepu basin were analyzed based on the basic geological survey and a large number of borehole data. Two hot-dry rock exploration target areas C1 and C2 located in Xichang and Changle sags were initially circled, with an area of 167.10 km2 and 72.90 km2, respectively. The HDR resources are 182.48×1015 J in C1, and are 77.59 ×1015 J in C2. Based on 20% recovery rate, the total amount of HDR resources in Hepu basin is 52.01×1015 J, which is equivalent to 177.48×104 t of standard coal. It accounts for 4.72 % of the total energy production of 3756.69×104 t standard coal in Guangxi in 2018. Based on the resource evaluation, it is recommended that further exploration should be given to the C1 target area,which is located in Xichang sag of Hepu basin. |
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| Keywords: | hot dry rock thermal condition potential evaluation Hepu basin in Guangxi |
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