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Assessment of the Geological Storage Potential and Suitability of CO 2 in the Deep Saline Aquifers in the Northwest Plain of Shandong Province, China

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  • Shihao Wang

    (The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources (Lubei Geo-Engineering Exploration Institute of Shandong Province), Dezhou 253072, China
    Dezhou Deep Geological Energy Conservation and Carbon Reduction Key Laboratory, Dezhou 253072, China)

  • Hailong Tian

    (Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China)

  • Xincun Zhao

    (The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources (Lubei Geo-Engineering Exploration Institute of Shandong Province), Dezhou 253072, China)

  • Yan Yan

    (The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources (Lubei Geo-Engineering Exploration Institute of Shandong Province), Dezhou 253072, China)

  • Xunchang Yang

    (The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources (Lubei Geo-Engineering Exploration Institute of Shandong Province), Dezhou 253072, China
    Dezhou Deep Geological Energy Conservation and Carbon Reduction Key Laboratory, Dezhou 253072, China)

  • Xuepeng Wang

    (The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources (Lubei Geo-Engineering Exploration Institute of Shandong Province), Dezhou 253072, China
    Dezhou Deep Geological Energy Conservation and Carbon Reduction Key Laboratory, Dezhou 253072, China)

Abstract

Carbon capture and storage (CCS) technology is a crucial and effective tool to achieve China’s dual carbon goals. The primary locations suitable for underground CO 2 storage include depleted oil and gas reservoirs, deep saline aquifers, and deep unmineable coal seams. Among these, deep saline aquifers are widely distributed in most of the world’s sedimentary basins, and they offer significant advantages—such as substantial storage capacity, well-established technology, high safety standards, and cost effectiveness—making them crucial geological reservoirs for carbon dioxide storage. In comparison to foreign countries’ projects on CO 2 capture, utilization, and storage (CCUS) technology, China’s initiatives have been implemented more recently, and no research has been conducted on the geological storage of CO 2 in the deep saline aquifers within the study area. In this study, we systematically analyzed the key factors for the geological storage of CO 2 in saline reservoirs within the northwest plain of Shandong Province: the Paleogene Shahejie Formation saline aquifer, and the lower reservoir of the Minghuazhen Formation saline aquifer located east of the Zhanhua–Lijin–Dongying line. The CO 2 geological storage potential of these aquifers was assessed using the evaluation methodology of the United States Department of Energy, yielding a result of 30.355 billion tons. An evaluation index system of CO 2 geological storage suitability was established. Evaluation indices for regions in the study area were assigned according to this evaluation index, and the score and grade of each unit were obtained. The results indicated that the Huimin latent fault depression, Dongying latent fault depression, Dezhou latent fault depression, and Dongming–Shenxian latent fault depression are suitable prospective areas for CO 2 geological storage in the saline aquifers of Shandong Province’s northwest plain.

Suggested Citation

  • Shihao Wang & Hailong Tian & Xincun Zhao & Yan Yan & Xunchang Yang & Xuepeng Wang, 2024. "Assessment of the Geological Storage Potential and Suitability of CO 2 in the Deep Saline Aquifers in the Northwest Plain of Shandong Province, China," Energies, MDPI, vol. 17(24), pages 1-22, December.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:24:p:6387-:d:1547211
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    1. Jianqiang Wang & Yong Yuan & Jianwen Chen & Wei Zhang & Jian Zhang & Jie Liang & Yinguo Zhang, 2023. "Geological Conditions and Suitability Evaluation for CO 2 Geological Storage in Deep Saline Aquifers of the Beibu Gulf Basin (South China)," Energies, MDPI, vol. 16(5), pages 1-20, March.
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    Cited by:

    1. Shuai Liu & Yan Yan & Lanxin Zhang & Weihua Song & Ying Feng & Guanhong Feng & Jingpeng Chen, 2025. "Study on Reasonable Well Spacing for Geothermal Development of Sandstone Geothermal Reservoir—A Case Study of Dezhou, Shandong Province, China," Energies, MDPI, vol. 18(15), pages 1-23, August.

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