Introduction to this special section: Geomechanics

The term “geomechanics” means different things to people. We assert that in the petroleum industry broad consensus for a definition would probably be something like this: Geomechanics is discipline investigates rock mechanical behavior subsurface (i.e., at wellbore wall, overburden, cap rock, and/or reservoir) under present-day in-situ stress and pore pressure conditions or those changed through human activity/intervention (e.g., production, injection, stimulation) during life of well.