Fluids are naturally present in the crust from subsoil to several kilometers deep. The representation of the Earth's crust as a purely elastic medium ignores the effects of fluids within rock pores. Because the presence of fluids alters the mechanical response of rocks, the theory of poro-elasticity can be used to more accurately represent the deformation and the stress field of the crust, especially when the fluid saturation of rocks is high. In a poro-elastic medium, fluids interact with the hosting rocks through the pore-pressure. If the fluids have significantly different temperatures compared to the surrounding rocks, the theory of poro-elasticity can be generalized to the thermo-poro-elasticity, which also takes into account the effects of the thermal expansion of the medium The geophysical applications of these theoretical frameworks are highly diverse and based on different modeling approaches and assumptions. In this work, we emphasize potential applications of thermo-poro-elasticity theory in developing increasingly complex models of rock-fluid interactions. To do that, we focus on the different modeling approaches employed in some recent models of deep fluid exploitation, reservoir induced seismicity, interaction between seismic faults and fluids, and hydrothermal systems in volcanic zones. Our review paper aims to offer a comprehensive summary of the models, theories, code packages, and applications pertinent to this area and suggest some possible future developments of thermo-(poro-elastic) models in different application areas.

中文翻译：

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（热）多孔弹性理论在地球物理学中的应用和未来发展


从底土到几公里深的地壳中，流体自然存在。将地壳表示为纯弹性介质，忽略了岩石孔隙内流体的影响。由于流体的存在会改变岩石的机械响应，因此多孔弹性理论可用于更准确地表示地壳的变形和应力场，尤其是当岩石的流体饱和度很高时。在多孔弹性介质中，流体通过孔隙压力与主岩相互作用。如果流体的温度与周围的岩石相比明显不同，则多孔弹性理论可以推广到热-多孔-弹性，它还考虑了介质热膨胀的影响。这些理论框架的地球物理应用非常多样化，并且基于不同的建模方法和假设。在这项工作中，我们强调了热-多孔-弹性理论在开发日益复杂的岩石-流体相互作用模型方面的潜在应用。为此，我们重点介绍了最近一些深部流体开采、储层诱发地震活动、地震断层与流体之间的相互作用以及火山带热液系统模型中采用的不同建模方法。我们的综述论文旨在全面总结与该领域相关的模型、理论、代码包和应用，并提出热（多孔弹性）模型在不同应用领域的一些可能的未来发展。