In-situ stress estimation by back-analysis of measured displacement / convergence in boreholes/wells/drifts.
to estimate the three in-situ stress components in the plane perpendicular to a borehole through back-analysis of radial displacement and/or diametrical convergence of boreholes / wells.
to estimate the complete 3D in-situ stresses (6 components) by the Differential Direction Drilling method through back-analysis of radial displacement and/or diametrical convergence of boreholes / wells.
to estimate the three in-situ stress components in the plane perpendicular to a dri ft through back-analysis of in-plane displacement / convergence between any two points in an opening of any shape.
Underground 3D stresses
ISSE - borehole application
ISSE - well application