玄武岩CO_(2)矿化封存实验备选场地勘查和潜力评价:雷州半岛田洋火山断陷盆地实例  

Investigations and potential assessment of basalt CO_(2) mineral sequestration experiment field:A case study of Tianyangvolcanic fault basin in Leizhou peninsula,China

作　　者：邱宁[1,2,3] 付启承 刘彬 潘春梧 夏菖佑 马诗佳 蔡齐 路川岳 李鹏春 孙珍[1] QIU Ning;FU Qicheng;LIU Bin;PAN Chunwu;XIA Changyou;MA Shijia;CAI Qi;LU Chuanyue;LI Pengchun;SUN Zhen(South China Sea Institute of Oceanology,Sanya Institute of Ocean Eco-Environmental Engineering,Key Laboratory of Tropical Oceanography,Chinese Academy of Sciences,Guangzhou 511458,China;Guangdong CCUS Centre,Guangzhou 510440,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院南海海洋研究所,三亚海洋生态环境工程研究院,热带海洋环境与岛礁生态全国重点实验室,广州511458 [2]广东南方碳捕集与封存产业中心,广州510440 [3]中国科学院大学,北京100049

出　　处：《环境工程学报》2025年第2期500-510,共11页Chinese Journal of Environmental Engineering

基　　金：海南三亚市科技创新专项(2022KJCX08);广东南方碳捕集与封存产业中心开放基金(GDCCUS202203)。

摘　　要：多孔的玄武岩富铁富镁,相较于砂岩,具有较好的矿物捕集能力,可快速且高效地将二氧化碳(CO_(2))转化为固体碳酸盐矿物,玄武岩CO_(2)矿化封存成为新一类备受关注的封存方式。玄武岩在世界分布广泛,但是目前在中国尚未见成功的玄武岩CO_(2)矿化封存技术研发与示范项目,相关研究相对较少。在中国雷州半岛已发现规模较大的第四纪玄武岩,有望成为CO_(2)矿化封存宝贵的科学研究天然实验场。在备选场址开展综合地球物理勘探,结合地质露头、钻探岩心和岩石物理资料等,分析玄武岩分布和物性参数特征。通过综合地球物理地震和电磁勘查对田洋玛珥湖地层和结构进行分析,结合钻井资料和磁法探测结果,进一步确证田洋地下存在玛珥湖型玄武岩地层,从浅层到深部发育较大规模玄武岩,矿化封存潜力较大。初步推断田洋地区玄武岩的地层结构,发现玄武岩地层连续性较好,具有较大的CO_(2)矿化封存潜力。根据计算公式估计研究区玄武岩的理论封存量为110.376×10^(8)t。研究成果不仅为玄武岩的矿化封存CO_(2)实验提供重要物性基础参数,还为雷州半岛玄武岩CO_(2)封存实验备选场地选址和注入设计提供重要支持。Porous basalt is rich in iron and magnesium,and has better mineral capture ability compared to sandstone.It can quickly and efficiently convert carbon dioxide(CO_(2))into solid carbonate minerals.Basalt CO_(2) mineral sequestration has become anemerged as a new type of carbon capture and storage(CCS)technology that has attracted much attention.Basalt is widely distributed around the globe,but research and demonstration projects on basalt CO_(2) mineral sequestration technology have not yet been initiated in China.The discovery of large-scale Quaternary basalt in the Leizhou Peninsula presents a promising opportunity to establish a valuable natural laboratory for CO_(2) mineral sequestration research.This study conducted comprehensive geophysical exploration at alternative sites,combining geological outcrops,drilling cores,and rock physics data to analyze the distribution and physical parameter characteristics of basalt.The study applied comprehensive geophysical seismic and electromagnetic exploration to analyze the strata and structure of Tianyang Mar Lake,combined with drilling data and magnetic exploration results,further confirming the existence of Mar Lake type basalt strata underground in Tianyang.Large scale basalt was developed from shallow to deep layers,with great potential for mineralization and storage.The stratigraphic structure of basalt in Tianyang area was studied and calculated,and it was found that the basalt had good stratigraphic continuity and great potential for CO_(2) mineralization and storage.According to the calculation formula,the theoretical storage capacity of basalt in the study area was estimated to be 11.0376 Gt.The research results not only provided important physical parameters for the mineralization and CO_(2) storage experiments of basalt,but also provided important support for the site selection and injection design of CO_(2) storage experiments of basalt in Leizhou Peninsula.

关 键 词：多孔玄武岩 二氧化碳CO_(2)矿化封存 地球物理探测 雷州半岛 田洋 

分 类 号：X523[环境科学与工程—环境工程]