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Antenna coupling component measurement tool having a rotating antenna configuration

  • US 9,157,315 B2
  • Filed: 08/17/2012
  • Issued: 10/13/2015
  • Est. Priority Date: 12/15/2006
  • Status: Active Grant
First Claim
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1. An electromagnetic resistivity logging tool that comprises:

  • a rotational position sensor;

    at least one receiver antenna;

    a first transmitter antenna having a first transmitter antenna orientation; and

    a second transmitter antenna having a second, different transmitter antenna orientation; and

    a processor to receive at least one of a phase and amplitude measurement in response to each of the transmitter antennas at each of a plurality of azimuthal angles to calculate at least one component of a coupling matrix using only transmitter antennas having the first and second transmitter antenna orientations.

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