Determination of borehole geometry inside cased wells with...

Details Determination of borehole geometry inside cased wells with... Determination of borehole geometry inside cased wells with...

E - Fixed Constructions

21

B

E21B 47/09 (2006.01) E21B 47/022 (2006.01) G01V 3/26 (2006.01) G01V 3/28 (2006.01)

Patent

CA 2468193

A method is disclosed for locating a receiver in a borehole having a conductive liner by inducing an electromagnetic field from a transmitter in a first borehole, detecting at a first location by at least one receiver located in a second borehole having a conductive liner, a first electromagnetic field induced by the transmitter, detecting at a second location by the at least one receiver, a second electromagnetic field induced by the transmitter and calculating a set of geometry coordinates for the first location based on the first electromagnetic field and the second electromagnetic field.

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