Assessing Earthquake Risks From Hydraulic Fracturing for Geothermal Power, Natural Gas and CO2 Storage Mark McClure, PhD in Energy Resources Engineering, Stanford University; Assistant Professor (winter 2013), University of Texas Scientists have been aware of human induced seismicity for decades. But attention to the issue has increased in recent years, as concerns have been raised for wastewater disposal, hydraulic fracturing, and CO2 sequestration. The importance of credible induced seismicity hazard assessment has never been higher. In this talk, Mark McClure will summarize the fundamental physical processes of induced seismicity, provide an overview of the history of the field, and review some of the dominant ideas in induced seismicity hazard analysis. Then he will summarize two papers he recently wrote on the topic of induced seismicity during hydraulic stimulation in geothermal energy. The first demonstrates how a single variable, the degree of brittle fault development, can explain the huge variation in induced seismicity across a range of historical enhanced geothermal projects. The second uses coupled fluid flow and seismicity modeling to explain a variety of observations of induced seismicity from enhanced geothermal projects and demonstrates how modeling could be used for hazard analysis or even optimization. Last, Mark will explain the broader implications of his work for induced seismicity hazard analysis. https://vimeo/53408974
Posted on: Thu, 12 Sep 2013 08:40:12 +0000
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