Wireless electromagnetic telemetry system and method for...

Details Wireless electromagnetic telemetry system and method for... Wireless electromagnetic telemetry system and method for...

E - Fixed Constructions

21

B

E21B 47/12 (2006.01)

Patent

CA 2561054

A wireless electromagnetic telemetry system for broadcasting signals across a bottomhole assembly disposed in a borehole drilled through a subterranean formation includes an insulated gap at a first point in the bottomhole assembly, at least one magnetic field sensor at a second point in the bottomhole assembly which measures a magnetic field, and a circuitry which modulates a voltage across the insulated gap, wherein the voltage creates an axial current along the bottomhole assembly that results in the magnetic field.

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