Layered linear inversion techniques for locating microseismic activity
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United States of America Patent
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Apr 10, 2018
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Jan 9, 2015
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Jan 9, 2015
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Abstract
A method for locating a microseismic event in a subsurface formation, in some embodiments, comprises: receiving a microseismic signal at a detector; obtaining a velocity model representative of the subsurface formation, the velocity model comprising multiple velocity layers; estimating, for each of the multiple velocity layers in the subsurface formation, a microseismic event location and a microseismic event origin time; and selecting one of the estimated locations and times using a parameter of the microseismic signal received at the detector.
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