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United States of America Patent
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Issued Date -
Oct 6, 2016
app pub date -
Nov 25, 2014
filing date -
Nov 27, 2013
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Abstract
Various implementations described herein are directed to a method of performing an electromagnetic survey operation. The method may include measuring an electric field of a subsurface area using sensors in a well disposed within the subsurface area. The method may include computing a first current density by multiplying the electric field with a measured electric resistivity in the well. The method may include creating a resistivity model of the subsurface area. The method may include running a simulation on the resistivity model to create a second current density. The method may include calculating a misfit by comparing the first current density to the second current density. The method may also include adjusting the resistivity model based on the misfit.
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