Patent ID: 9376907
Filing Date: 2016-06-28
CPC Classification: E21B,G01N

Claim Text:
1. An apparatus for a subterranean formation with a plurality of spaced apart injector/producer well pairs therein, each injector/producer well pair comprising a laterally extending producer well and a laterally extending injector well spaced thereabove, and an intermediate well adjacent a given injector/producer well pair, the apparatus comprising: a radio frequency (RF) sensor; a positioning actuator coupled to said RF sensor and configured to position said RF sensor within the intermediate well; and an RF analyzer coupled to said RF sensor and configured to determine at least one failure location associated with the given injector/producer well pair by at least analyzing impedance data of the adjacent subterranean formation based upon diverging electric fields from said RF sensor to establish a resistivity based profile of hydraulic communication between the given injector/producer well pair along a length thereof, the diverging electric fields penetrating deeper within the subterranean formation than any magnetic fields associated with said RF sensor.