Optimal selection of favorable areas for CO2 geological storage in the Majiagou Formation in the Ordos Basin

被引:9
|
作者
Lu, Ping [1 ,2 ]
Hao, Yu-yu [3 ]
Bai, Yong [2 ]
Liu, Wei-gang [2 ]
Chen, Xi [2 ,4 ]
Zheng, Hua-an [2 ]
Liu, Jie [2 ]
Chen, Yong-zhen [2 ]
Gao, Jian-Ping [2 ]
机构
[1] Northwest Univ, Xian, Shaanxi, Peoples R China
[2] Shaanxi Prov Inst Energy & Chem Engn, Xian, Shaanxi, Peoples R China
[3] Xian Univ Sci & Technol, Xian, Shaanxi, Peoples R China
[4] Columbia Univ, New York, NY USA
关键词
CO2 geological storage; Site ranking methodology; Carbonate reservoir; Majiagou Formation; Ordos Basin; PERMEABILITY SALINE AQUIFERS; CARBON-DIOXIDE STORAGE; CAPACITY ESTIMATION; SEQUESTRATION; SITE; CAPTURE; CANADA; MEDIA;
D O I
10.1016/j.ijggc.2021.103360
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Carbon dioxide (CO2) geological storage (CGS) is considered as one of the feasible choices for large-scale CO2 emission reduction worldwide, and the primary issue in CGS is how to select areas favorable for storing CO2. The research conducted by Chinese scholars on CO2 geological storage in the Ordos Basin has mainly focused on numerical simulations of CO2 storage, the estimation of the CO2 storage capacity, and the CO2 storage mechanism. Few studies have been conducted on the selection of CO2 geological storage area, or even on a methodology for ranking CO2 geological storage sites in carbonate reservoirs. This study provides a reference for the ranking of CGS areas in carbonate reservoirs. First, from the geological view of CO2 storage reservoir, logging data and core petrographic analyses with cast thin sections, scanning electron microscopy and formation water salinity tests were used to systematically investigate the reservoir type, lithology, porosity, permeability, burial depth, thickness, temperature, and pressure conditions, and water salinity of the Majiagou formation. Second, from the perspective of CO2 storage safety, literature research, and seismic interpretation data were used to investigate the sealing performance of the strata overlying the Majiagou Formation and its related fault system in detail. Third, from the economic perspective of CO2 storage, considering the distance from the source of the CO2 emissions, the extent of the regional exploration, and the degree of the influence of CO2 storage on the exploitation of other mineral resources, the CO2 storage areas in the Majiagou Formation in the Ordos Basin were prioritized. The results show that (1) the Wushenqi-Jingbian-Yan'an karst slope area (I-1) is the best CO2 geological storage area, (2) the Yulin-Mizhi karst basin area (I-2) is a favorable area for CGS in the Ordos Basin. (3) A site ranking methodology for CGS is also proposed, providing a reference for the selection of CO2 geological storage areas in carbonate reservoirs based on the technical, safety, and economic feasibility of the CGS.
引用
收藏
页数:18
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