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- 2Shear wave splitting
- 1Anisotropic Poroelasticity Model
- 1Anomalous Induced Seismicity
- 1Decision Tree Analysis
- 1Double-difference tomography
This thesis explores the effect of fluid substitution, pore-pressure diffusion and stresses due to hydraulic fracturing on the elastic velocities and microcrack orientations in the surrounding rock. I develop a workflow incorporating three main components to model the velocity field around the...
Microseismic events are often recorded during hydraulic fracturing stimulations of unconventional hydrocarbon reservoirs like tight sands and shales, Enhanced Geothermal Systems, mine development and carbon dioxide sequestration. Most applications involve locating and tracking these events over...
Anomalous induced seismicity (AIS) is defined as the induced seismic events larger than moment magnitude (Mw) 0. Moderate-sized seismicity (that is, around Mw 4) has the potential to be felt by humans and damage infrastructure. Industrial operations such as hydraulic fracturing, have the...
Theory indicates that, to fully describe the ground motions of a particle, translational motions, strain and rigid rotational motions are all needed, where the first includes particle displacement, velocity and/or acceleration and the second includes normal and shear strain. Traditional...