Mathematically formulating and implementing a semianalytical-layered geomechanical model by simplifying assumptions about field configuration and properties allows fast numerical estimation of production-induced displacements and stress changes in a reservoir. The developed fast semianalytical model was applied to a parametric study of hydraulic fracture reorientation in a water-flooded field in western Siberia. Results of the study indicate that for the typical conditions in the field, the perturbation of pressure induced by the injection pattern is sufficient to initiate considerable rotations of hydraulic fracture planes. The angle of rotation is very sensitive to anisotropy of initial stress; thicker pay zones result in larger swing angles. This software tool is fast, both in terms of calculation time and time required to set up a numerical task, and is very convenient for preliminary quick-look studies before constructing a detailed 3D reservoir model. The speed of the software tool makes it applicable for parametric, optimization, or sensitivity studies, which require multiple trial simulations in a reasonable amount of time.

You can access this article if you purchase or spend a download.