CPG

Abstract: Induced seismicity is a central issue in the development of subsurface energy technologies in the United States and around the world. Understanding the physical mechanisms behind induced seismicity is essential to successful management of the seismic risk. In my talk, I explain the common observation that abrupt increases in injection rate increase the seismic risk and quantity the energy released and potential for damage to man-made structures through a zero-dimensional spring-poroslider model of frictional slip. I also investigate the influence of fluid injection on fault stability in the laboratory through two-dimensional models. And lastly, I characterize the effect of heterogeneity on the dynamics of frictional faults through fundamental friction laws. This work, as a whole, enhances our understanding of the mechanics of fluid-injection-induced earthquakes and suggests strategies that mitigate or minimize the seismic risk associated with subsurface operations from hydraulic fracturing and wastewater injection to geothermal energy extraction and geologic carbon sequestration.Induced seismicity is a central issue in the development of subsurface energy technologies in the United States and around the world. Understanding the physical mechanisms behind induced seismicity is essential to successful management of the seismic risk. In my talk, I explain the common observation that abrupt increases in injection rate increase the seismic risk and quantity the energy released and potential for damage to man-made structures through a zero-dimensional spring-poroslider model of frictional slip. I also investigate the influence of fluid injection on fault stability in the laboratory through two-dimensional models. And lastly, I characterize the effect of heterogeneity on the dynamics of frictional faults through fundamental friction laws. This work, as a whole, enhances our understanding of the mechanics of fluid-injection-induced earthquakes and suggests strategies that mitigate or minimize the seismic risk associated with subsurface operations from hydraulic fracturing and wastewater injection to geothermal energy extraction and geologic carbon sequestration.

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https://kfupm.zoom.us/j/98359017976?pwd=Qlk2dFNJeVZFaVRENkVGc3BNaXRmUT09

Meeting ID: 983 5901 7976
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