Seismic sliding of the single fault under fluid injection

Seismicity associated with fluid injection into the subsurface is one of the most important issues worldwide. Fluid injection near a fault could lead to seismic sliding of the fault and as a consequence to significant seismic events. In the presented research, we study the single fault behavior under the action of a single well injection near the fault. Various cases of fluid injection and friction properties of the fault are considered. To describe the friction on the fault we use two-parameter rate-and-state law. The fault has zones characterized by velocity-weakening and velocity-strengthening friction behavior. We analyze how injection rate and volume and parameters of the friction law influence the fault sliding dynamics and seismicity level. As the result, we get conditions that are favorable for the occurrence of noticeable seismicity and dependence of seismicity parameters on injection parameters.