广西合浦盆地咸水层二氧化碳地质储存潜力与适宜性评价研究  

Research on the carbon dioxide geological storage potential and suitability assessment of the saline aquifers in the Hepu Basin,Guangxi

作　　者：石树静 康志强 张勤军 郑焕君 冯民豪 贝为昶 SHI Shujing;KANG Zhiqiang;ZHANG Qinjun;ZHENG Huanjun;FENG Minhao;BEI Weichang(Guangxi Geological Survey Institute,Nanning 530023,China;Guangxi Bureau of Geology Mineral Prospecting Exploitation,Nanning 530023,China)

机构地区：[1]广西壮族自治区地质调查院,南宁530023 [2]广西壮族自治区地质矿产勘查开发局,南宁530023

出　　处：《华北地质》2025年第1期103-112,共10页North China Geology

基　　金：国家自然科学基金“酸雨条件下碳酸盐岩溶蚀过程及对岩溶碳汇效应的影响机制”(42372294);广西科技重大专项“中国—柬埔寨典型岩溶关键带碳循环过程对比研究与应用示范”(桂科AA24206020);广西地质矿产勘查开发局“广西靖西市坡豆河流域岩溶碳汇调查评价”(GXDK202405);广西矿山水文地质勘查关键技术研究人才小高地项目(桂地矿综研[2024]6号)。

摘　　要：【研究目的】CO_(2)的地质储存是应对气候变化、减少CO_(2)排放、实现碳中和、支持环境保护和能源资源保障,以及促进经济发展与生态保护的和谐共生的有效途径。【研究方法】本文以广西合浦盆地为研究单元,在地质特征的基础上,确定深部咸水含水层为地质储层,基于束缚储存和溶解储存机理方法计算普查阶段D级预测地质潜力,选择7个一级指标和16个二级评价指标,进行CO_(2)地质储存适宜性评价。【研究结果】研究结果表明,合浦盆地咸水层二氧化碳普查阶段D级预测地质潜力189.01×10^(6)t;南流江坳陷的西场凹陷和常乐凹陷2个评价单元的适宜性评价结果为“一般适宜”。【结论】评价结果为广西初步选址CO_(2)地质储存工程建设提供了科学依据。[Objective]The geological storage of CO_(2)is an effective approach to address climate change,reduce CO_(2)emissions,achieve carbon neutrality,support environmental protection and energy resource security,as well as to promote the harmonious coexistence of economic development and ecological protection.[Methods]This study focuses on the Hepu Basin in Guangxi as the research unit.Based on the geological characteristics,the deep saline aquifer was identified as the geological reservoir.The D-level predicted geological potential during the reconnaissance phase was calculated using the mechanisms of residual trapping and solubility trapping.Seven primary indicators and sixteen secondary evaluation indicators were selected to conduct the suitability assessment for CO_(2)geological storage.[Results]The results indicate that the D-level predicted geological potential for CO_(2)storage in the saline aquifer of the Hepu Basin is 189.01×10⁶.The suitability evaluation results for the two assessment units,Xichang Depression and Changle Depression in the Nanliujiang Depression,are"moderately suitable".[Conclusions]The evaluation results provide a scientific basis for the preliminary site selection for CO_(2)geological storage project construction in Guangxi.

关 键 词：CO_(2)地质储存 合浦盆地 潜力 适宜性 

分 类 号：P641.6[天文地球—地质矿产勘探] X511[天文地球—地质学]