Category Archive: Seismicity

An Experimental Investigation of the Risk of Triggering Geological Disasters by Injection under Shear Stress

In this experimental work it was shown that the “risk of triggering geological disaster with injection under shear stress” does indeed exist, must not be denied. Abstract Fluid injection has been applied in many fields, such as hazardous waste deep well injection, forced circulation in geothermal fields, hydraulic fracturing, and CO2 geological storage. However, current …

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Permanent link to this article: http://frack-free.rocks/an-experimental-investigation-of-the-risk-of-triggering-geological-disasters-by-injection-under-shear-stress/

Fault activation by hydraulic fracturing in western Canada

Abstract: Hydraulic fracturing has been inferred to trigger the majority of injection-induced earthquakes in western Canada, in contrast to the midwestern United States where massive saltwater disposal is the dominant triggering mechanism. A template-based earthquake catalog from a seismically active Canadian shale play, combined with comprehensive injection data during a 4-month interval, shows that earthquakes …

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Permanent link to this article: http://frack-free.rocks/fault-activation-by-hydraulic-fracturing-in-western-canada/

A Historical Review of Induced Earthquakes in Texas

This historical overview over earthquakes in different areas of Texas shows empirically that seismic activity has grown in line with the oil and gas production, e. g. with secondary techniques, and accompanying underground waste water disposal. ABSTRACT In Texas, earthquakes have occurred in close association with activities accompanying petroleum production since 1925. Here we develop …

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Permanent link to this article: http://frack-free.rocks/a-historical-review-of-induced-earthquakes-in-texas/

Fracking by the numbers: Experience after 10 years

In a single year, fracking wells across the country released at least 5.3 billion pounds of the potent greenhouse gas methane, as much global warming pollution as 22 coal-fired power plants. This statistic is one of many in a new study by Environment America Research & Policy Center that quantifies the environmental harm caused by …

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Permanent link to this article: http://frack-free.rocks/fracking-by-the-numbers-experience-after-10-years/

Hydraulic Fracturing and Seismicity in the Western Canada Sedimentary Basin

This study shows that the most recent cases of induced earthquakes in Western Canada are strongly correlated in space and time with ongoing hydraulic fracturing activities. These findings, the authors say, have far-reaching implications for assessment of induced-seismicity hazards. Key findings: The development of most unconventional oil and gas resources relies upon subsurface injection of …

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Permanent link to this article: http://frack-free.rocks/hydraulic-fracturing-and-seismicity-in-the-western-canada-sedimentary-basin/

2016 One-Year Seismic Hazard Forecast for the Central and Eastern United States from Induced and Natural Earthquakes

Increased seismic activity, whether defined as induced or natural, produces high hazard. Conversion of ground shaking to seismic intensity indicates that some places in Oklahoma, Kansas, Colorado, New Mexico, Texas, and Arkansas may experience damage if the induced seismicity continues unabated. The chance of having Modified Mercalli Intensity (MMI) VI or greater (damaging earthquake shaking) …

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Permanent link to this article: http://frack-free.rocks/2813-2/

Microseismicity Induced by Deep Wastewater Injection in Southern Trumbull County, Ohio

In this study, multistation waveform template matching as an earthquake fingerprint scanning technique to investigate the potential relationship between the earthquake and the injection operations is used. Bibliography: Robert J. Skoumal, Michael R. Brudzinski, Brian S. Currie Microseismicity Induced by Deep Wastewater Injection in Southern Trumbull County, Ohio Seismological Research Letters DOI: 10.1785/0220150055 Published on …

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Permanent link to this article: http://frack-free.rocks/microseismicity-induced-by-deep-wastewater-injection-in-southern-trumbull-county-ohio/

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