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层状盐岩是我国深部能源(如石油、天然气等)地下储存的重要方式,研究层状盐岩中储库稳定性的影响因素对于我国能源地下储存具有重要意义.基于宏观平均意义下考虑细观弯曲效应的三维Cosserat介质扩展粘弹塑性渐进破坏本构模型,运用FLAC3D通过数值模拟方法分析了硬质泥岩夹层含量、泥岩夹层与盐岩的刚度比对层状盐岩体中能源储存库稳定性的影响,同时对层状盐岩体中能源储库的运行内压、高径比、上覆层厚度等影响因素进行了分析,这将为我国含有硬质泥岩夹层的层状盐岩体中能源储库的修建和长期运营提供现实依据.
Layered salt rock is an important way for underground storage of deep energy (such as oil, natural gas, etc.) in our country. Studying the influencing factors of reservoir stability in layered salt rock is of great significance for underground storage of energy in our country. Viscoelasticity and plasticity of the three-dimensional Cosserat medium-induced bending effect propagate the constitutive model gradually. FLAC3D is used to analyze the content of hard mudstone interlayer by numerical simulation. The stiffness ratio of mudstone interlayer to salt rock is stable to the energy storage reservoir in layered salt rock mass Meanwhile, the influential factors such as operating pressure, height-diameter ratio, overburden thickness and so on of energy reservoir in layered salt rock mass are analyzed, which will provide a theoretical basis for the development of layered salt rock mass with hard mudstone interlayer in China In the energy reservoir construction and long-term operation to provide a realistic basis.