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二氧化碳-水-岩作用机理及微观模拟方法研究进展

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系统综述CO2-水-岩复杂作用机理、多孔介质反应输运(溶解、沉淀及沉淀运移)微观模拟、CO2-水-岩系统微观模拟3个方面的研究进展,指出目前研究存在的主要问题并提出了关于未来研究方向的建议.CO2注入储集层后,不仅存在常规渗流体系的流动和传质作用,还会产生溶解、沉淀及沉淀运移等特殊物理化学现象,其耦合作用导致多孔介质的孔渗参数变化规律复杂.孔隙尺度的微观渗流模拟,可以得到孔喉三维空间内的详细信息,且能显性观察到多孔介质流-固界面随反应的变化.目前研究主要在复杂作用机理解耦合、多矿物差异性反应表征、沉淀生成机理及表征(晶体成核和矿物脱落)、沉淀-流体相互作用模拟方法、多物理化学过程耦合渗流机制等方面存在局限.未来研究中,需要创新实验方法对"溶解—沉淀—沉淀运移"解耦合,提高矿物地球化学反应相关参数实验测试的准确度,在不同沉淀机理可靠表征的基础上,建立沉淀-流体相互作用模拟方法,并有机耦合各个物理化学过程,最终实现对CO2-水-岩系统中"溶解—沉淀—沉淀运移"的耦合渗流模拟.
A review of interaction mechanisms and microscopic simulation methods for CO2-water-rock system
This work systematically reviews the complex mechanisms of CO2-water-rock interactions,microscopic simulations of reactive transport(dissolution,precipitation and precipitation migration)in porous media,and microscopic simulations of CO2-water-rock system.The work points out the key issues in current research and provides suggestions for future research.After injection of CO2 into underground reservoirs,not only conventional pressure-driven flow and mass transfer processes occur,but also special physicochemical phenomena like dissolution,precipitation,and precipitation migration.The coupling of these processes causes complex changes in permeability and porosity parameters of the porous media.Pore-scale microscopic flow simulations can provide detailed information within the three-dimensional pore and throat space and explicitly observe changes in the fluid-solid interfaces of porous media during reactions.At present,the research has limitations in the decoupling of complex mechanisms,characterization of differential multi-mineral reactions,precipitation generation mechanisms and characterization(crystal nucleation and mineral detachment),simulation methods for precipitation-fluid interaction,and coupling mechanisms of multiple physicochemical processes.In future studies,it is essential to innovate experimental methods to decouple"dissolution-precipitation-precipitation migration"processes,improve the accuracy of experimental testing of minerals geochemical reaction-related parameters,build reliable characterization of various precipitation types,establish precipitation-fluid interaction simulation methods,coordinate the boundary conditions of different physicochemical processes,and,finally,achieve coupled flow simulation of"dissolution-precipitation-precipitation migration"within CO2-water-rock systems.

CO2-water-rockdissolutionprecipitationprecipitation migrationmicroscopic simulationCO2 capture,utilization and storagecarbon neutralitydecouple

张烈辉、张涛、赵玉龙、胡浩然、文绍牧、吴建发、曹成、汪永朝、范云婷

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西南石油大学油气藏地质与开发工程全国重点实验室,成都 610500

中国石油西南油气田公司页岩气研究院,成都 610051

中国石油西南油气田公司,成都 610051

CO2-水-岩系统 溶解 沉淀 沉淀运移 微观模拟 CO2捕集、利用与埋存 碳中和 解耦合

国家自然科学基金重点基金国家自然科学基金优秀青年科学基金国家自然科学基金青年项目

522340035222240252304044

2024

10.11698/PED.20230544

石油勘探与开发
中国石油天然气股份有限公司勘探开发研究院 中国石油集团科学技术研究院

石油勘探与开发

CSTPCD北大核心
影响因子：4.977
ISSN：1000-0747
年,卷(期)：2024.51(1)
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