环境工程学报2025，Vol.19Issue(1)：241-249,9.DOI:10.12030/j.cjee.202403092
CO2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 CO2 mineral sequestration in basalt of Tianyang,Leizhou Peninsula,China
摘要
Abstract
After centuries of large-scale use of fossil fuels,the concentration of CO2 in the atmosphere has risen rapidly and fossil fuels cannot be completely replaced in the short term.Basalt CO2 mineral sequestration is a new CO2 storage technology that has attracted much attention in recent years,which can sequester CO2 that cannot be reduced and achieve negative CO2 emissions.Basalt is widely distributed in China,but China has not yet carried out research and development and demonstration of basalt CO2 mineral sequestration technology.A scientific and reasonable storage location method is the first prerequisite for implementing basalt CO2 mineral sequestration.The location of basalt CO2 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 CO2 mineralization sequestration in China.In this study,an alternative site for CO2 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 processing of magnetic anomalies,and an area with high magnetic anomalies and large source depth was identified as an area with storage potential.4)By combining two aeromagnetic anomaly profiles with drilling data,geological interpretation wes carried out to infer the boundary of Tianyang Crater further and evaluate the sealing potential.The results showed that there wes a Maer Lake-type basalt formation in Tianyang,and large-scale basalt develops from shallow layer to deep layer,which had great potential for mineralization and storage.This research will provide important enlightenment for the research development and demonstration of basalt CO2 mineralization sequestration technology.关键词
CO2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Key words
CO2 mineralization sequestration/basalt/site evaluation/magnetic prospecting/analytic signal/geophysics/Euler deconvolution/Tianyang分类
环境科学引用本文复制引用
刘彬,邱宁,潘春梧,路川岳,夏菖佑,马诗佳,李鹏春,孙珍..CO2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[J].环境工程学报,2025,19(1):241-249,9.基金项目
广东省重大人才工程资助项目(2019BT02H594) （2019BT02H594）
三亚市科技创新专项资助项目(2022KJCX08) （2022KJCX08）
广东南方碳捕集与封存产业中心开放基金资助项目(GDCCUS202203) （GDCCUS202203）
广东省基础与应用基础研究基金资助项目(2021A1515011526) （2021A1515011526）
