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Spring 2020

Bestmann, Ibinabo

Seismic events or earthquakes occur due to stress perturbations in the sub-surface and are related to the generation of new faults or reactivation of pre-existing faults. Completeness of an earthquake catalogue is critical for gaining a better understanding of sub-surface processes and this can...

2016

Khazaei, Cyrus

Using Particle Flow Code (PFC3D), a discrete element model is presented in this paper that allows direct modeling of stick-slip behavior in pre-existing weak planes such as joints, beddings and faults. The model is used to simulate a biaxial sliding experiment from literature on a saw-cut...

Spring 2018

Barthwal, Himanshu

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...

Fall 2021

Feroz, Amna

Thermal heavy oil extraction techniques are high temperature and pressure procedures to produce heavy oil. Elevated temperature and pressures alter the subsurface stresses, causing shear failure of rock within and surrounding the steam front. The steam also introduces volumetric changes at the...

Fall 2013

Castellanos, Fernando r

Microseismic event location provides a plethora of information about underground processes such as hydraulic fracturing, steam injection or mining and volcano activities. Nevertheless, accuracy is limited by acquisition geometry and errors in the velocity model and time picks. Although...

Fall 2016

Khazaei, Cyrus

Two major applications of microseismic (MS) monitoring in petroleum engineering are hydraulic fracturing operations and caprock integrity assurance. With respect to caprock integrity, this research has investigated the observation of the absence of detectable magnitudes of microseismic events as...