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基于二维裂缝扩展的二氧化碳注入砂岩透镜体封存模拟

于慧 崔振东 丁航航 姚义 庞振忠 朱柯

于慧, 崔振东, 丁航航, 姚义, 庞振忠, 朱柯. 基于二维裂缝扩展的二氧化碳注入砂岩透镜体封存模拟[J]. 矿业科学学报, 2020, 5(6): 601-607. doi: 10.19606/j.cnki.jmst.2020.06.001
引用本文: 于慧, 崔振东, 丁航航, 姚义, 庞振忠, 朱柯. 基于二维裂缝扩展的二氧化碳注入砂岩透镜体封存模拟[J]. 矿业科学学报, 2020, 5(6): 601-607. doi: 10.19606/j.cnki.jmst.2020.06.001
Yu Hui, . Simulation of CO2 injection into sandstone lens sealing based on 2D crack expansion[J]. Journal of Mining Science and Technology, 2020, 5(6): 601-607. doi: 10.19606/j.cnki.jmst.2020.06.001
Citation: Yu Hui, . Simulation of CO2 injection into sandstone lens sealing based on 2D crack expansion[J]. Journal of Mining Science and Technology, 2020, 5(6): 601-607. doi: 10.19606/j.cnki.jmst.2020.06.001

基于二维裂缝扩展的二氧化碳注入砂岩透镜体封存模拟

doi: 10.19606/j.cnki.jmst.2020.06.001
详细信息
    作者简介:

    于慧(1991—),男,辽宁大连人,博士研究生,主要从事工程地质、生态环境及水文地质等方面的研究工作。Tel:13051873855,E-mail:bqt1800202029@student cumtb.edu.cn

Simulation of CO2 injection into sandstone lens sealing based on 2D crack expansion

  • 摘要: 为保证砂岩透镜体中超临界二氧化碳封存的安全性,对裂缝萌生、扩展、演化过程进行了研究。建立透镜体地质模型和数值计算模型,分析超临界二氧化碳流体在裂缝中的运移机理;利用ABAQUS数值模拟软件建立流-固耦合模型,进行裂缝扩展模拟。结果表明:在有初始裂缝时,裂缝扩展呈现出长、快、曲的趋势;在无初始裂缝时,裂缝扩展呈现出短、慢、平的趋势;在初始裂缝角度为0°、30°情况下,裂缝的宽度、面积随孔隙水压力的变化较为一致,整体上呈线性递增趋势;在初始裂缝角度为60°情况下,裂缝的扩展主要取决于初始注入点和运移通道的选择。
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  • 刊出日期:  2020-12-31

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