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首页> 外文会议>Biot conference on poromechanics >Processes Responsible for Localized Deformation within Porous Rocks: Insights from Laboratory Experiments and Numerical Modeling
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Processes Responsible for Localized Deformation within Porous Rocks: Insights from Laboratory Experiments and Numerical Modeling

机译：负责多孔岩石内局部变形的过程：来自实验室实验和数值模型的见解

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摘要

The formation of shear-enhanced compaction bands is of interest for various geological reservoir applications such as energy storage, geothermal energy production or enhanced oil recovery. These localized features can indeed have great impacts on the transport properties of reservoir rocks and therefore on the reservoir productivity. In this study, we report experimental and numerical results aiming at identifying and quantifying the processes responsible for localization of deformation and their impacts on porosity evolution. Axial loading experiments in a triaxial setting at three different confining pressures were conducted on Bentheim sandstone with continuous porosity measurements. In a second step, the experimental results were used as constraints for numerical modeling using a Drucker-Prager yield criterion with data-derived hardening and softening rules.
机译：剪切增强压实带的形成对于各种地质储层应用（例如能量存储，地热能生产或提高的石油采收率）很重要。这些局部特征的确可以对储层岩石的输运特性以及储层生产率产生重大影响。在这项研究中，我们报告了实验和数值结果，旨在识别和量化负责变形局部化及其对孔隙演化的影响的过程。在Bentheim砂岩上进行了连续孔隙度测量，在三种不同的围压下，在三轴环境下进行了轴向载荷试验。第二步，将实验结果用作使用数据导出的硬化和软化规则的Drucker-Prager屈服准则进行数值建模的约束。

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