Electrically conductive proppant and methods for detecting, locating and characterizing the electrically conductive proppant
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United States of America Patent
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Jan 13, 2015
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app pub date -
Jan 3, 2014
filing date -
Jan 4, 2013
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Abstract
Electrically conductive proppants and methods for detecting, locating, and characterizing same are provided. The electrically conductive proppant can include a substantially uniform coating of an electrically conductive material having a thickness of at least 500 nm. The method can include injecting a hydraulic fluid into a wellbore extending into a subterranean formation at a rate and pressure sufficient to open a fracture therein, injecting into the fracture a fluid containing the electrically conductive proppant, electrically energizing the earth at or near the fracture, and measuring three dimensional (x, y, and z) components of electric and magnetic field responses at a surface of the earth or in an adjacent wellbore.
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