Scientific Mechanisms, Technical System, and Engineering Pathways of Synergistic Geological Sequestration of Mine Water and Carbon Dioxide
Abstract
Against the backdrop of global climate change mitigation and China’s deepening “Dual Carbon” strategy, geological carbon dioxide (CO2) sequestration has become a key technology for large-scale emission reduction. However, its widespread application is hindered by challenges such as poor economic viability and leakage risks. Meanwhile, the safe and efficient disposal of the massive amounts of mine water generated in China’s major coal producing regions has become an urgent environmental issue. To simultaneously address the dual challenges of “carbon sequestration” and “water management,” this paper innovatively proposes a new technology: Mine Water-CO2 Synergistic Sequestration (MW-CSS). This approach aims to break through traditional single-disposal models by constructing a synergistic system that uses water as a carrier and underground pores as reactors. It transforms mine water from a disposal target into an active medium that drives CO2 mineralization, thereby promoting CO2 dissolution, enhancing the stability of the dissolved phase during migration, and providing the necessary ions and reaction conditions for mineralization fixation. This paper systematically elaborates on the synergistic mechanisms and comprehensive advantages of MW-CSS, and proposes a framework covering “efficient mixing, enhanced injection, engineering equipment, monitoring and early warning, and comprehensive evaluation,” along with three core process pathways. The study aims to provide key scientific and technological support for the synergistic governance of carbon reduction, pollution control, ecological expansion, and economic growth in China’s mining areas.
Article Type: Review Article
Cited as:
Jiang Z, Du S, Ren SY, et al. 2026. Scientific Mechanisms, Technical System, and Engineering Pathways of Synergistic Geological Sequestration of Mine Water and Carbon Dioxide. GeoStorage, 2(3), 216-233.
DOI:
https://doi.org/10.46690/gs.2026.03.03Keywords:
CO2 geological storage, mine water, reaction-driven sequestration, mineral carbonation, deep subsurface monitoringReferences
Akbarian M, Saghafian B, Golian S. 2023. Monthly streamflow forecasting by machine learning methods using dynamic weather prediction model outputs over Iran. Journal of Hydrology, 620(B): 129480. https://doi.org/10.1016/j.jhydrol.2023.129480.
Alshammari A, Lakshmi V, Brantley D, et al. 2022. Simulation of carbon dioxide mineralization and its effect on fault leakage rates in the South Georgia rift basin, southeastern U.S. Heliyon, 8(6): e09635. https://doi.org/10.1016/j.heliyon.2022.e09635.
Amer R, Xue ZQ, Hashimoto T, et al. 2025. Strain analysis for early leakage detection and geomechanical monitoring at CO2 storage sites using distributed fiber optic strain sensing. Fuel, 384: 133937. https://doi.org/10.1016/j.fuel.2024.133937.
Baba I A, Mustapha S, Awe O B, et al. 2026. Zerovalent iron-based nanomaterials as sustainable catalysts for the sequestration of emerging contaminants in wastewater: Mechanisms, performance, and challenges. Inorganic Chemistry Communications, 191: 117231. https://doi.org/10.1016/j.inoche.2026.117231.
Bachu S. 2003. Screening and ranking of sedimentary basins for CO2 storage in geological media in Canada. Environmental Geology, 44(1): 70–81. https://doi.org/10.1007/s00254-003-0762-9.
Chapoy A, Mohammadi A H, Chareton A, et al. 2004. Measurement and modeling of gas solubility and literature review of the properties for the carbon dioxide−water system. Industrial & Engineering Chemistry Research, 43: 1794–1802. https://doi.org/10.1021/ie034232t.
Chai J, Li Y F, Li S M, et al. 2025. Applications and prospects of nanomaterials for enhanced geological CO2 sequestration: A review. Alexandria Engineering Journal, 123: 425–435. https://doi.org/10.1016/j.aej.2025.03.094.
de la Cruz-Azuara J E, El Hamzaoui Y, Sanchez M A. 2026. Machine learning for CO2 geological storage and CO2-enhanced oil recovery in hydrocarbon reservoirs: A critical review of methodologies, the sim-to-real gap, and a roadmap for field-scale deployment. Results in Engineering, 30: 110928. https://doi.org/10.1016/j.rineng.2026.110928.
Ding W J, Zhe H C, Liu S Q, et al. 2026. Pore structure damage and mechanical response law of shale under impact load. Mineralogy and Petrology, 46: 258–271. https://doi.org/10.19719/j.cnki.1001-6872.2026.01.19.
Du S, Xie Z Q, Li X, et al. 2025. Geological Deep Well Injection and Storage Technology under the “Dual Carbon” Goals: Advances, Challenges, and Prospects. Coal Geology of China, 37(12): 1–11+44. https://doi.org/10.3969/j.issn.1674-1803.2025.12.01.
Du S, Li X, Che Q H, et al. 2026. Technical system and engineering application of deep geological storage for coal mine water. Journal of China Coal Society, 51(S1): 344–363. https://doi.org/10.13225/j.cnki.jccs.2025.0974.
Du T, Yao HY, Pei GH, et al. 2026. Research Status and Prospects of Coal Mine Underground Reservoirs in China. GeoStorage, 2(3): 196–215. https://doi.org/10.46690/gs.2026.03.01.
Eke P E, Naylor M, Haszeldine S, Curtis A. 2011. CO2/brine surface dissolution and injection: CO2 storage enhancement. SPE Projects, Facilities & Construction, 6: 41–53. https://doi.org/10.2118/124711-PA.
Fertl WH, Chilingarian GV. 1989. Chapter 15 Evaluation and Monitoring of Enhanced Oil Recovery Projects Based on Geophysical Well Logging Techniques. Developments in Petroleum Science, 17B: 451–494. https://doi.org/10.1016/S0376-7361(08)70467-9.
Furre AK, Eiken O, Alnes H, et al. 2017. 20 years of monitoring CO2-injection at Sleipner. Energy Procedia, 114: 3916–3926. https://doi.org/10.1016/j.egypro.2017.03.1523.
Gao RS, Sun AY, Nicot JP. 2016. Identification of a representative dataset for long-term monitoring at the Weyburn CO2-injection enhanced oil recovery site, Saskatchewan, Canada. International Journal of Greenhouse Gas Control, 54: 454–465. https://doi.org/10.1016/j.ijggc.2016.05.028.
Ghiasi M, Eghtedari H S, Gholami S, et al. 2026. Green CO2-capture cluster model using bioengineering of carbonic anhydrase enzyme: QM and QM′ approach. Scientific Reports, 16: 2806. https://doi.org/10.1038/s41598-025-32638-y.
Grataloup S, Bonijoly D, Lahann H, et al. 2009. A siteselection methodology for CO2 underground storage in deep saline aquifers. Energy Procedia, 2009(1): 2929–2936. https://doi.org/10.1016/j.egypro.2009.02.068.
Grimm RP, Eriksson KA, Ripepi N, et al. 2012. Seal evaluation and confinement screening criteria for beneficial carbon dioxide storage with enhanced coal bed methane recovery in the Pocahontas Basin, Virginia. International Journal of Coal Geology, 90–91: 110-125. https://doi.org/10.1016/j.coal.2011.11.002.
Guo H Y, Zhao J, Liu P Y. 2018. Strength softening characteristics and chemical analysis of deep soft rock after water interaction. Chinese Journal of Rock Mechanics and Engineering, 37: 3462–3469. https://doi.org/10.13722/j.cnki.jrme.2017.1178.
He XQ, Tian XH, Song DZ. 2022. Research progress and prospect of safe CO2 storage in coal seams. Coal Science and Technology, 50: 212–219. https://doi.org/10.13199/j.cnki.cst.2021-0843.
IEA. 2024. CCUS in Clean Energy Transitions 2024. International Energy Agency.
Jia LH. 2023. Brief discussion on research status of carbon dioxide capture and storage processes. Leather Manufacture and Environmental Technology, 4: 166–168. https://doi.org/10.20025/j.cnki.CN10-1679.2023-18-56.
Jiang SH, Shi SZ, Zhao K, et al. 2023. Exploration prospect and development direction of deep coal and coalbed methane. Science & Technology Review, 41: 106–113. https://doi.org/10.3981/j.issn.1000-7857.2023.07.011.
Jiang L L, Tian L, Chen Z X, et al. 2025. Research on the micropore structure and multiscale fractal characteristics of shale under supercritical CO2 action: A case study of the Chang 73 sub-member in the Ordos Basin. Natural Gas Geoscience, 36: 533–553. https://doi.org/10.11764/j.issn.1672-1926.2024.09.005.
Juanes R, Spiteri EJ, Orr FMJr, Blunt MJ. 2006. Impact of relative permeability hysteresis on geological CO2 storage. Water Resources Research, 42: W12418. https://doi.org/10.1029/2005WR004806.
Koide H, Tazaki Y, Noguchi Y, et al. 1992. Subterranean Containment and Long-Term Storage of Carbon Dioxide in Unused Aquifers and in Depleted Natural Gas Reservoirs. Energy Conversion and Management, 33: 621–628. https://doi.org/10.1016/0196-8904(92)90064-4.
Li YM, Pang ZH, Li J, et al. 2012. CO2 sequestration and utilization in deep saline aquifers. Science and Technology Review, 36: 70–79. https://doi.org/10.3969/j.issn.1672-3791.2012.36.049.
Li Q, Zhao N, Liu LC, et al. 2019. Environmental risk assessment method for Australian Gorgon CO2 saline aquifer storage project. Environmental Engineering, 37: 22–26. https://doi.org/10.13205/j.hjgc.201902003.
Li YD, Ding SW, Zhang M, et al. 2024. Sensitivity analysis of injection-production parameters for CO2 flooding and storage in low-permeability reservoirs considering sequestration mechanisms. Xinjiang Petroleum Geology, 45: 711–718. https://doi.org/10.13873/j.cnki.cn65-1107/oil.2024.06.007.
Li YB, Chen YW, Zhao JZ, et al. 2024. Interaction mechanism between supercritical carbon dioxide and shale. Oil & Gas Geology, 45: 1180–1194. https://doi.org/10.11743/ogg20240420.
Lin QG, Zhang SJ, Wang XZ, et al. 2019. Establishment of monitoring system for CO2 flooding and storage in low and ultra-low permeability reservoirs. Journal of Safety and Environment, 19: 693–703. https://doi.org/10.13637/j.issn.1009-6094.2019.02.047.
Lin X, Li Z, Liu LW, et al. 2026. Regulation and modification mechanism of shale reservoirs by supercritical carbon dioxide. Natural Gas Geoscience, 37(6): 1230–1248. https://doi.org/10.11764/j.issn.1672-1926.2025.11.007.
Liu SN, Zhang LW, Su XB, et al. 2020. Review on modeling and parameter selection for chemical reactions of mineral dissolution and precipitation under the condition of CO2 sequestration. Water Resources and Hydropower Engineering, 51: 13–22. https://doi.org/10.13928/j.cnki.wrahe.2020.11.002.
Liu XX, Zeng YF, Wu Q, et al. 2024. Ecological-Based Mining: A Coal–Water–Thermal Collaborative Paradigm in Ecologically Fragile Areas in Western China. Engineering, 38: 209–222. https://doi.org/10.1016/j.eng.2024.01.019.
Liu MX, Wang L, Chen WY, et al. 2026. Transformation mechanisms of elements and structure in low-rank coal under acidic/alkaline mine water-ScCO2 interaction: Implications for CO2 sequestration in abandoned coal mines. Journal of Environmental Chemical Engineering, 14(13):122784. https://doi.org/10.1016/j.jece.2026.122784.
Lumley DE. 2001. Time-lapse seismic reservoir monitoring. Geophysics, 66(1): 50–53. https://doi.org/10.1190/1.1444921.
Matter JM, Stute M, Snæbjörnsdóttir SÓ, et al. 2016. Rapid carbon mineralization for permanent disposal of anthropogenic carbon dioxide emissions. Science, 352: 1312–1314. https://doi.org/10.1126/science.aad8132.
Meng HL, Yang WF, Wang B, et al. 2024. Study on feasibility and storage model of carbon dioxide landfill in goafs of deep coal seams. Shanxi Coal, 44: 1–7. https://doi.org/10.3969/j.issn.1672-5050.2024.03.001.
Ni HJ, Guo X, Ding L, et al. 2019. Experiment on the effect of supercritical carbon dioxide immersion on mechanical properties of shale. Journal of China University of Petroleum (Edition of Natural Science), 43: 77–84. https://doi.org/10.3969/j.issn.1673-5005.2019.02.009.
Oldenburg CM, Bryant SL, Nicot JP. 2019. Certification framework for geologic carbon sequestration. International Journal of Greenhouse Gas Control, 3(4): 444–457. https://doi.org/10.1016/j.ijggc.2009.02.009.
Ozer CK, Toker V. 2013. Calcareous Nannoplankton Biostratigraphy of the Bartin Province, Western Black Sea, Turkey. Acta Geologica Sinica (English Edition), 86(6):1434–1446. https://doi.org/10.1111/1755-6724.12012.
Paluszny A, Graham CC, Daniels KA, et al. 2020. Caprock integrity and public perception studies of carbon storage in depleted hydrocarbon reservoirs. International Journal of Greenhouse Gas Control, 98: 103057. https://doi.org/10.1016/j.ijggc.2020.103057.
Pan D, Yao Y, Huang X, et al. 2025. Unveiling hidden reaction kinetics of carbon dioxide in supercritical aqueous solutions. Proceedings of the National Academy of Sciences, 122: e2406356121. https://doi.org/10.1073/pnas.2406356121.
Rathnaweera TD, Ranjith PG, Perera MSA, Haque A. 2016. Influence of CO2–Brine Co-injection on CO2 Storage Capacity Enhancement in Deep Saline Aquifers: An Experimental Study on Hawkesbury Sandstone Formation. Energy & Fuels, 30: 4229–4243. https://doi.org/10.1021/acs.energyfuels.6b00113.
Rao ZH, Deng CH, Ma QY, et al. 2023. Effects of different crystal-inducing materials on crack self-healing process of cement stone under CCUS well conditions. Drilling Fluid & Completion Fluid, 40: 495–501. https://doi.org/10.12358/j.issn.1001-5620.2023.04.012.
Rene N N, Liang WG, Chen YD, et al. 2025. Modeling of multiphase fluids flow in anisotropic rock mass during CO2 sequestration in fractured reservoirs. Geothermics. 251:213904. https://doi.org/10.1016/j.geoen.2025.213904.
Rezk MG, Ibrahim AF. 2026. Impact of uncertainty in Utsira formation temperature and salinity on CO2 storage: A field-scale reactive transport simulation study. Carbon Capture Science & Technology. 18: 100567. https://doi.org/10.1016/j.ccst.2025.100567.
Sang SX, Liu SQ, Zhu QL, et al. 2023. Research progress on technical basis of CO2 geological sequestration potential and energy resource synergy. Journal of China Coal Society, 48: 2700–2716. https://doi.org/10.13225/j.cnki.jccs.cn23.0316.
Ting WW, Effendi SSW, Hu RE, et al. 2023. Directed evolution of Mesorhizobium loti carbonic anhydrase for carbon dioxide sequestration by MutaT7 and rational codon design. Journal of the Taiwan Institute of Chemical Engineers, 150: 105065. https://doi.org/10.1016/j.jtice.2023.105065.
Tang WK, Li WQ, Lin ZT, et al. 2025. Geophysical monitoring technology and simulation in CO2 geological storage: A comprehensive review. Journal of Geochemical Exploration,143: 205725. https://doi.org/10.1016/j.jgsce.2025.205725.
Wang M, Zhao WM, Li XS, et al. 2026. Comparative study on corrosion behavior of pack and hot-dip aluminized steels in high-temperature H2–H2S–CO2–H2O environments: insights into layer structure and degradation mechanisms[J]. Materials Chemistry and Physics, 349(1): 131754. https://doi.org/10.1016/j.matchemphys.2025.131754.
Wang Y, Yue WT, Zhao YX, et al. 2021. Relationship between apparent permeability of shale gas, multiple flow mechanisms and effective stress evolution. Science Technology and Engineering, 21: 4911–4917. https://doi.org/10.3969/j.issn.1671-1815.2021.12.023.
Wu ZW, Zhong L, Cai X, et al. 2026. Division of CO2 flooding and storage development stages and optimization of wateralternating-gas injection parameters: A case study of block Fin oilfield S. Journal of Petroleum Science and Engineering. https://doi.org/10.1016/j.petgeoen.2026.214606.
Xie J, Zhang KN, Wang YS, et al. 2016. Evaluation of CO2 geological storage effect in deep saline aquifers of Ordos Basin. Rock and Soil Mechanics, 37: 166–174. https://doi.org/10.16285/j.rsm.2016.01.020.
Xu XX, Shi SK, Zhang YH, et al. 2026. Corrosion behavior and mechanisms of martensitic heat-resistant steel in high temperature H2O-CO2-H2S-H2 environments. Rock and Soil Mechanics, 264: 113735. https://doi.org/10.1016/j.corsci.2026.113735.
Yan XH, He WJ, Liao SW, et al. 2025. Enhancing CO2 oversaturation in the confined water enables superior gas selectivity of 2D membranes. The Journal of Physical Chemistry Letters, 16: 766–773. https://doi.org/10.1021/acs.jpclett.4c03228.
Yanagisawa N, Masuda Y, Asanuma H, et al. 2025. Estimation of casing material corrosion rates for supercritical geothermal development. Geothermics, 96: 102149. https://doi.org/10.1016/j.geothermics.2021.102149.
Yang XM, Xiao P, Sun CY, et al. 2024. Research progress on kinetic promoters for light hydrocarbon and carbon dioxide hydrate formation. The Chinese Journal of Process Engineering, 24: 1137–1148. https://doi.org/10.12034/j.issn.1009-606X.223332.
Zhang FJ, Juhlin C, Niemi A, et al. 2016. A feasibility and efficiency study of seismic waveform inversion for timelapse monitoring of onshore CO₂ geological storage sites using reflection seismic acquisition geometries. International Journal of Greenhouse Gas Control, 48: 134–141. https://doi.org/10.1016/j.ijggc.2015.11.015.
Zhang Q, Lin J, Zhe YN, et al. 2022. Research progress on potential evaluation of carbon dioxide geological storage in China. China Petroleum and Chemical Standard and Quality, 42: 144–146. https://doi.org/10.3969/j.issn.1673-4076.2022.11.051.
Zhu BR, Chen GM, Lin H, et al. 2016. Dynamic pushover analysis method of deep-water jacket platform. Acta Petrolei Sinica, 37(12): 1550–1556. https://doi.org/10.7623/syxb201612011.
Zhu ZW, Kumar N, Premadasa UI, et al. 2025. Polymer layer-accelerated CO2 absorption in aqueous amino acid solutions. ACS Applied Polymer Materials, 7: 689–698. https://doi.org/10.1021/acsapm.4c02798.
Zou XY, Zhu YT, Lv J, et al. 2024. Toward estimating CO2 solubility in pure water and brine using cascade forward neural network and generalized regression neural network: Application to CO2 dissolution trapping in saline aquifers. ACS Omega, 9: 4705–4720. https://doi.org/10.1021/acsomega.3c07962.
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