多尺度 CO2 矿化和地质封存综述：机制、表征、建模、应用和前景,Energy & Fuels

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多尺度 CO2 矿化和地质封存综述：机制、表征、建模、应用和前景
Energy & Fuels ( IF 5.2 ) Pub Date : 2023-08-24 , DOI: 10.1021/acs.energyfuels.3c01830
Lintao Sun ₁ , Yingying Liu ₁ , Zucheng Cheng ₁ , Lanlan Jiang ₁ , Pengfei Lv ₂ , Yongchen Song ₁

Affiliation

碳捕集、利用和封存（CCUS）技术作为减少碳排放的重要技术，近年来得到快速发展，其中CO ₂地质封存是重要组成部分。由于CO _{2的复杂性}地质封存，特别是长时期的成矿封存，已开展深入研究，揭示成矿封存机理。本文通过介绍各种实验工具，全面认识矿化封存机理及其应用前景，以加深对矿化封存过程中孔隙尺度和岩心尺度变化的表征，推动矿化封存在大规模碳封存研究中的应用。通过地球化学模拟和现场规模演示。本综述总结了典型储层矿化储存的代表性多尺度研究。主要发现如下： (1) 对于CO ₂–水岩反应，除了受储层岩石固有的不均匀性（矿物成分性质等）影响外，储层的环境条件（pH、温度、压力等）对水岩反应也有很大影响。矿化储存过程中的溶解和沉淀过程。(2)矿化封闭过程伴随着孔隙渗透特性的复杂演化。矿物溶解阶段导致孔隙空间增大，显着提高流体注入能力，而矿物再沉淀过程则造成孔喉堵塞等问题，往往影响密封安全。(3) 建模方法与实验室工作相结合，可以进行大规模和时间尺度的预测。此外，₂存储在现场工程应用。最后提出了未来的发展和研究方向。

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Review on Multiscale CO2 Mineralization and Geological Storage: Mechanisms, Characterization, Modeling, Applications and Perspectives

Carbon capture, utilization, and storage (CCUS) technology has shown rapid development in recent years as an important technology to reduce carbon emissions, of which CO₂ geological storage is an important part. Due to the complexity of CO₂ geological storage, especially the long period of mineralization storage, intensive studies have been conducted to reveal the mechanism of mineralization storage. This review presents a comprehensive understanding of the mineralization storage mechanism and its application prospects by introducing various experimental tools to deepen the characterization of pore-scale and core-scale changes during mineralization storage and promote the application of mineralization storage in large-scale carbon storage studies through geochemical simulations and field-scale demonstrations. This review summarizes representative multiscale studies of mineralization storage in typical reservoirs. The main findings are as follows: (1) For CO₂–water–rock reactions, in addition to the influence of the inherent inhomogeneity of reservoir rocks (properties of mineral components, etc.), the environmental conditions of the reservoir (pH, temperature, pressure, etc.) have a strong influence on the dissolution and precipitation processes during mineralized storage. (2) The mineralization sealing process is accompanied by a complex evolution of pore-permeability properties. The mineral dissolution stage causes an increase in pore space and significantly improves the fluid injection capacity, while the mineral reprecipitation process causes problems such as pore throat blockage, which often affects the safety of sealing. (3) The modeling approach, combined with laboratory work, allows for large-scale and time-scale predictions. In addition, the current implementation of successful demonstration projects is summarized to promote the use of CO₂ storage in field engineering applications. Finally, directions for future development and research are proposed.

更新日期：2023-08-24

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