Carbon capture and storage, geomechanics and induced seismic
April 8, 2021, 6:00:00 a.m.
The paper examines the causes of injection-induced seismicity (IIS), and how it should be monitored and modelled, and thereby mitigated. Many IIS case studies are found where fluids are injected into layers that are in close proximity to crystalline basement rocks. It investigates this issue further by comparing injection and seismicity in two areas where oilfield wastewater is injected in significant volumes: Oklahoma, where fluids are injected into a basal layer, and Saskatchewan, where fluids are injected into a much shallower layer.