王铭瑶,王全荣
Wang Mingyao,Wang Quanrong

• 1:中国地质大学(武汉)环境学院

摘要(Abstract)：

CO_2地质封存是一种有效应对全球气候变暖的技术手段，其封存潜力评价是筛选封存地点的基础。莺-琼盆地的深部咸水层作为封存目标区域，目前仍缺乏对其深部咸水含水层的系统性评估。利用克里金插值法对莺-琼盆地部分数据空缺区域进行补充与预测，建立基于地理信息系统（GIS）叠加多源信息法和层次分析法（AHP）的莺-琼盆地咸水层CO_2封存潜力评价体系。该评价体系包含4个指标层、13个指标，综合考虑储盖层条件、有利储盖层组合分布、理论封存量与CO_2封存环境条件，系统评估封存潜力。评价结果表明，莺歌海盆地的中央凹陷和莺歌海凹陷北部储盖层条件优良，封存潜力最大，理论封存量可达6.125 2×10~4 t/km~2；琼东南盆地储盖层条件较好，虽然封存量较小（理论封存量为9 700 t/km~2），但具备CO_2封存条件，琼东南盆地中松东凹陷、崖南凹陷地区的封存潜力最大。研究成果可为莺-琼盆地CO_2咸水层封存的工程建设提供选址依据。
CO_2 geological sequestration is an effective technical means to address global warming, and its potential evaluation is the foundation for screening storage sites. Deep saline aquifers of Ying-Qiong Basin, as potential sequestration target areas, still lack systematic evaluation of their deep saline aquifers at present. Kriging interpolation method is used to supplement and predict data gaps in certain regions of Ying-Qiong Basin, establishing CO_2 sequestration potential evaluation system for saline aquifers in Ying-Qiong Basin based on Geographic Information System(GIS)overlay with multi-source information and the Analytic Hierarchy Process(AHP). This evaluation system includes 4 indicator layers and 13 indexes, comprehensively considering caprock conditions, favorable caprock combinations and distribution, theoretical sequestration volume, and CO_2 sequestration environmental conditions to systematically evaluate sequestration potential. The evaluation results show that central sag of Yinggehai Basin and northern Yinggehai Sag have excellent caprock conditions and the largest sequestration potential, with theoretical sequestration volume reaching 6.1252 ×10~4 t/km~2. The caprock conditions in Qiongdongnan Basin are relatively good. Although sequestration volume is small(theoretical sequestration volume is 9 700 t/km~2), it owns CO_2 sequestration conditions, with maximum sequestration potential in Songdong Sag and Ya'nan Sag areas of Qiongdongnan Basin. The research provides basis for sites screening for engineering construction of CO_2 saline aquifer sequestration in Ying-Qiong Basin.

关键词(KeyWords)： CO_2地质封存;封存潜力评价;地理信息系统叠加多源信息法;层次分析法
CO_2 geological sequestration;sequestration potential evaluation;GIS overlay with multi-source information method;Analytic Hierarchy Process

Abstract:

Keywords:

基金项目(Foundation): 中国海油石油有限公司综合科研项目“莺-琼盆地CO2与地热能综合利用关键技术研究”(KJZH-2023-2203);; 海南省院士创新平台科研项目“莺-琼盆地CO2地质封存关键技术研究”(ZDYF2024GXJS037)

作者(Author): 王铭瑶,王全荣
Wang Mingyao,Wang Quanrong

DOI: 10.19597/J.ISSN.1000-3754.202501041

参考文献(References)：

• [1]Oldenburg C M. Screening and ranking framework for geologic CO2 storage site selection on the basis of health, safety, and environmental risk[J]. Environmental Geology, 2008, 54(8):1687-1694.
• [2]Bachu S. Screening and ranking of sedimentary basins for sequestration of CO2 in geological media in response to climate change[J]. Environmental Geology,2003,44(3):277-289.
• [3]Rodosta T D, Litynski J T, Plasynski S I, et al. U.S. Department of energy’s site screening,site selection,and initial characterization for storage of CO2 in deep geological formations[J].Energy Procedia,2011,4:4664-4671.
• [4]张成龙，王瑞景，罗翔，等.“双碳”愿景下CO2驱强化采油封存技术工程选址指标评价[J].大庆石油地质与开发，2024,43(1):158-167.Zhang Chenglong,Wang Ruijing,Luo Xiang,et al. Evaluation of CO2-EOR project site selection indexes under“dual carbon”vision[J]. Petroleum Geology&Oilfield Development in Daqing,2024,43(1):158-167.
• [5]闫华敏，李磊，李林涛，等.基于层次分析法和模糊评价法的中国近海盆地CO2封存适宜性评价[J].海洋地质前沿，2024,40(1):79-93.Yan Huamin,Li Lei,Li Lintao,et al. Suitability assessment on CO2 storage in offshore basins of China based on AHP and fuzzy comprehensive evaluation[J]. Marine Geology Frontiers,2024,40(1):79-93.
• [6]范彩伟，贾茹，柳波，等.莺歌海盆地中央坳陷带成藏体系的盖层评价及控藏作用[J].岩性油气藏，2023,35(1):36-48.Fan Caiwei,Jia Ru,Liu Bo,et al. Caprock evaluation and its reservoir control of different accumulation systems in central depression zone of Yinggehai Basin[J]. Lithologic Reservoirs,2023,35(1):36-48.
• [7]梁玉凯，宋荣彩，郑华安，等.基于熵权法-TOPSIS-灰色关联法的储层综合评价：以莺歌海盆地黄流组为例[J].成都理工大学学报（自然科学版），2024,51(1):91-101.Liang Yukai,Song Rongcai,Zheng Hua’an,et al. Comprehensive evaluation of reservoirs based on the entropy weight method,TOPSIS, and the gray correlation method:taking the Huangliu Formation in Yinggehai Basin as an example[J]. Journal of Chengdu University of Technology(Science&Technology Edition),2024,51(1):91-101.
• [8]邵远.莺歌海盆地天然气储层地质特征与评价[J].化工设计通讯，2024,50(4):54-56.Shao Yuan. Geological characteristics and evaluation of natural gas reservoirs in the Yinggehai Basin[J]. Chemical Engineering Design Communications,2024,50(4):54-56.
• [9]谢玉洪.莺歌海盆地高温高压盖层封盖能力定量评价[J].地球科学，2019,44(8):2579-2589.Xie Yuhong. Quantitative evaluation of sealing capacity of high temperature and pressure caprocks in Yinggehai Basin[J].Earth Science,2019,44(8):2579-2589.
• [10]廖晋，金澳涵，李才，等.莺-琼盆地咸水层二氧化碳地质封存适宜性及潜力评价[J].地质科技通报，2025,44(3):344-352.Liao Jin,Jin Aohan,Li Cai,et al. Suitability and potential evaluation of geological storage of carbon dioxide in saline aquifers of Ying-Qiong Basin[J]. Bulletin of Geological Science and Technology,2025,44(3):344-352.
• [11]Tian Yukun, Du Zhili, Zhang Lin, et al. Research on evaluation of the carbon dioxide sequestration potential in saline aquifers in the Qiongdongnan-Yinggehai Basin[J]. Journal of Marine Science and Engineering,2024,12(6):997.
• [12]任建业，雷超.莺歌海—琼东南盆地构造-地层格架及南海动力变形分区[J].地球物理学报，2011,54(12):3303-3314.Ren Jianye, Lei Chao. Tectonic stratigraphic framework of Yinggehai-Qiongdongnan Basins and its implication for tectonic province division in South China Sea[J]. Chinese Journal of Geophysics,2011,54(12):3303-3314.
• [13]万志峰，夏斌，何家雄，等.沉积盆地超压形成机制及其对油气运聚成藏过程的影响[J].天然气地球科学，2007,18(2):219-223.Wan Zhifeng, Xia Bin, He Jiaxiong, et al. Formation mechanism of overpressure and its influence on hydrocarbon accumulation in sedimentary basins[J]. Natural Gas Geoscience,2007,18(2):219-223.
• [14]黄保家.莺琼盆地天然气成因类型及成藏动力学研究[D].广州：中国科学院广州地球化学研究所，2002.Huang Baojia. Genetic types and migration-accumulation dynamics of natural gases in the Ying-Qiong Basin,the South China Sea[D]. Guangzhou:Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,2002.
• [15]贾茹.莺琼盆地盖层完整性及与天然气成藏[D].大庆：东北石油大学，2018.Jia Ru. The integrity of caprocks and gas accumulation in Yingqiong Basin[D]. Daqing:Northeast Petroleum University,2018.
• [16]王磊.莺琼盆地高温高压对储层物性的影响研究[D].成都：成都理工大学，2013.Wang Lei. Research on high temperature and high pressure effects on reservoir property of Yingqiong Basin[D]. Chengdu:Chengdu University of Technology,2013.
• [17]Iskandar U P,Usman U,Sofyan S. Ranking of Indonesia sedimentary basin and storage capacity estimates for CO2 geological storage[J]. Energy Procedia,2013,37:5172-5180.
• [18]Ye Jing, Afifi A, Rowaihy F, et al. Evaluation of geological CO2 storage potential in Saudi Arabian sedimentary basins[J].Earth-Science Reviews,2023,244:104539.
• [19]杨霄翼，刘延锋，徐连三.深部盐水层CO2地质埋存适宜性评价指标体系及其应用[J].安全与环境工程，2014,21(5):71-77.Yang Xiaoyi,Liu Yanfeng,Xu Liansan. Construction and application of comprehensive evaluation index system for the suitability of CO2 geological storage in deep saline aquifer[J]. Safety and Environmental Engineering,2014,21(5):71-77.