CO_(2)矿化封存备选场址雷州半岛田洋玛珥湖玄武岩分布磁法勘探  

Geophysical exploration of alternative sites for CO_(2) mineral sequestration in basalt of Tianyang,Leizhou Peninsula,China

作　　者：刘彬 邱宁[1,2,4] 潘春梧 路川岳 夏菖佑 马诗佳 李鹏春 孙珍[1,2] LIU Bin;QIU Ning;PAN Chunwu;LU Chuanyue;XIA Changyou;MA Shijia;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 Science,Guangzhou 511458,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),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]南方海洋科学与工程广东省实验室(广州),广州511458 [3]广东南方碳捕集与封存产业中心,广州510440 [4]中国科学院大学,北京100049

出　　处：《环境工程学报》2025年第1期241-249,共9页Chinese Journal of Environmental Engineering

基　　金：广东省重大人才工程资助项目(2019BT02H594);三亚市科技创新专项资助项目(2022KJCX08);广东南方碳捕集与封存产业中心开放基金资助项目(GDCCUS202203);广东省基础与应用基础研究基金资助项目(2021A1515011526)。

摘　　要：地球上经过几个世纪的化石燃料大规模利用,大气中的CO_(2)浓度急速上升且短期内化石燃料不可被完全取代,玄武岩CO_(2)矿化封存是近年来备受关注的新型CO_(2)封存技术手段,可将无法减排的CO_(2)进行封存,实现CO_(2)负排放。玄武岩在我国分布广泛,但是我国目前尚未开展玄武岩CO_(2)矿化封存技术研发与示范,科学合理的封存选址方法是实施玄武岩CO_(2)矿化封存的首要前提。玄武岩CO_(2)矿化封存选址需要详细了解研究区玄武岩层的分布、厚度、孔隙度、渗透率等。玄武岩与围岩相比存在较大的岩石磁性差异为我们使用磁法勘探提供前提条件。我国广东雷州半岛存在较大规模的玄武岩,是我国CO_(2)矿化封存宝贵的科学研究天然实验场。针对雷州半岛田洋玛珥湖盆地作为玄武岩CO_(2)封存备选场址为研究对象,采用航磁勘探方法结合钻井、岩石物性等地质资料分析玄武岩分布特征与评估封存潜力。1)通过解析信号的处理方法对航磁异常进行分区,初步圈定四处可能含有玄武岩层的区域。2)由于研究区为低纬度区,磁总场异常特征扭曲变形,通过对原始航磁异常做化极处理,并结合岩石磁性资料对初步圈定的四处玄武岩层区域进行磁异常特征解释。3)通过对磁异常进行欧拉反褶积处理快速估算玄武岩层深度与厚度,确定了一处具有高磁异常且源深度较大的区域为封存潜力区域。4)通过两条航磁异常剖面结合钻井资料,进行地质解释进一步推断田洋火山口边界与评估封存潜力。研究结果表明,田洋研究区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,该研究将对于我国开展玄武岩CO_(2)矿化封存技术研发与示范提供重要启示意义。After centuries of large-scale use of fossil fuels,the concentration of CO_(2)in the atmosphere has risen rapidly and fossil fuels cannot be completely replaced in the short term.Basalt CO_(2)mineral sequestration is a new CO_(2)storage technology that has attracted much attention in recent years,which can sequester CO_(2)that cannot be reduced and achieve negative CO_(2)emissions.Basalt is widely distributed in China,but China has not yet carried out research and development and demonstration of basalt CO_(2)mineral sequestration technology.A scientific and reasonable storage location method is the first prerequisite for implementing basalt CO_(2)mineral sequestration.The location of basalt CO_(2)mineralization requires a detailed understanding of the distribution,thickness,porosity,and permeability of basalt layers in the study area.The large magnetic difference between basalt and surrounding rock provides the prerequisite for using the magnetic prospecting method.There is a large-scale basalt in the Leizhou Peninsula of Guangdong Province,a valuable natural experimental field for CO_(2)mineralization sequestration in China.In this study,an alternative site for CO_(2)sequestration of basalt in the Tianyangbasin of the Leizhou Peninsula was studied.The magnetic exploration method was used to analyze the distribution characteristics of basalt and evaluate the sequestration potential by combining drilling and petrophysical data.1)The aeromagnetic anomalies are partitioned by the analytical signal processing method,and four areas containing basalt layers were initially delineated.2)Due to the low latitude area in the study area,the abnormal characteristics of the magnetic total field were distorted and deformed.By polarizing the original aeromagnetic anomalies and combining them with the magnetic data of the rock,the magnetic anomaly characteristics of the four initially delineated basalt layer regions were interpreted.3)The depth and thickness of the basalt layer were rapidly estimated by Euler deconvolution proce

关 键 词：CO_(2)矿化封存 玄武岩 场地评价 磁法勘探 解析信号 地球物理 欧拉反褶积 田洋 

分 类 号：X701[环境科学与工程—环境工程]