Model for (De)Compaction and Porosity Waves in Porous Rocks Under Shear Stresses

An understanding of instantaneous and long‐term compaction of porous rocks is important for reservoir engineering and Earth sciences. Experience from laboratory triaxial compression tests and from subsurface operations indicates that shear and volumetric deformations are interdependent. Their mutual dependence results in shear‐enhanced compaction and shear‐induced dilation under short‐term and long‐term loading. Using a classical averaging...