By National Research Council, Division on Earth and Life Studies, Board on Earth Sciences and Resources, Committee on Seismology and Geodynamics, Committee on Geological and Geotechnical Engineering, Committee on Earth Resources, Committee on Induced Seismic
Some time past a number of years, a few power applied sciences that inject or extract fluid from the Earth, corresponding to oil and gasoline improvement and geothermal power improvement, were chanced on or suspected to reason seismic occasions, drawing heightened public consciousness.
Although just a very small fraction of injection and extraction actions one of the thousands of strength improvement websites within the usa have caused seismicity at degrees obvious to the general public, figuring out the opportunity of inducing felt seismic occasions and for restricting their prevalence and affects is fascinating for kingdom and federal corporations, undefined, and the general public at huge. to raised comprehend, restrict, and reply to prompted seismic occasions, paintings is required to construct strong prediction versions, to evaluate strength dangers, and to assist appropriate companies coordinate to handle them.
Induced Seismicity capability in power applied sciences identifies gaps in wisdom and examine had to develop the knowledge of brought about seismicity; establish gaps in prompted seismic danger review methodologies and the study to shut these gaps; and examine concepts for steps towards top practices with reference to strength improvement and prompted seismicity strength.
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Additional info for Induced Seismicity Potential in Energy Technologies
5 When the committee uses the term “shale gas,” it is referring to dry gas, gas, and some liquids. 26 Copyright © National Academy of Sciences. All rights reserved. Induced Seismicity Potential in Energy Technologies Induced Seismicity and Energy Technologies best practices for mitigating induced seismicity risk in Chapter 6. Chapter 7 contains the report’s findings, conclusions, proposed actions, and research recommendations, including identification of information and knowledge gaps and research and monitoring needs.
All rights reserved. identify and assess options for interim steps toward best practices, pending resolution of key outstanding research questions. we, as humans, perceive or feel and the extent of damage to structures and facilities. The intensity of an earthquake depends on factors such as distance from the earthquake source and local geologic conditions, as well as earthquake magnitude. Throughout this work we refer to earthquake magnitudes using the moment-magnitude scale (Hanks and Kanamori, 1979), which is a scale preferred by seismologists because it is theoretically related to the amount of energy released by the Earth’s crust.
2). In contrast to the difficulty of determining the maximum and minimum horizontal stresses and their orientations, the undisturbed initial pressure of the fluid permeating the rock and the fractures or faults can usually be reliably estimated from the depth of the rocks, under normally pressurized conditions. Techniques also exist for direct measurement of the pore pressure from a well. Although the conditions for initiating slip on a preexisting fault are well understood, the difficulty remains to make reliable estimates of the various quantities in the Coulomb 38 Copyright © National Academy of Sciences.