Poroelastic Properties of Crustal Rocks

9614558国际和平研究所建议利用现有和新开发的实验室技术，通过实验确定岩石的孔洞弹性性质。研究岩石中的应力-孔压耦合过程需要实验室数据，这在地球物理、水文学和石油工程中具有重要的应用价值。将建立一个实验数据库来处理Biot理论的前提，即孔压与剪切应变不耦合，实验将研究孔弹模数与孔压和围压的关系，孔弹模数随岩石类型的一般变化，以及孔弹模数与细观力学性质之间的关系。这项研究将为地球上地壳中的地球物理现象的孔弹性模拟提供坚实的实验基础。***

9614558 Wang The PI proposes to experimentally determine rock poroelastic properties by utilizing existing and newly developed laboratory techniques. The laboratory data are needed for studying coupled stress-pore pressure processes in rocks, which are important in applications in geophysics, hydrology, and petroleum engineering. An experimental database will be developed to address the Biot theory premise that pore pressure is not coupled with shear strain, and experiments will investigate the dependence of poroelastic moduli on pore pressure and confining pressure, the general variations of poroelastic moduli with rock type, and the relationships between poroelastic moduli and micromechanical properties. The research should provide a solid experimental basis for poroelastic modeling of geophysical phenomena in the earth's upper crust. ***