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Borepath analyzer

  • US 9,971,013 B2
  • Filed: 08/22/2016
  • Issued: 05/15/2018
  • Est. Priority Date: 11/29/2012
  • Status: Active Grant
First Claim
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1. A method for configuring a beacon for use in horizontal directional drilling operations, the method comprising:

  • using a tracker to measure a magnetic field interference on multiple frequencies at a first above-ground location;

    moving the tracker to a second above-ground location;

    using the tracker to measure the magnetic field interference on multiple frequencies at the second above-ground location;

    selecting a first transmission frequency in response to the magnetic field interference measured at the first above-ground location;

    selecting a second transmission frequency in response to the magnetic field interference measured at the second above-ground location; and

    configuring the beacon adapted for incorporation into a drill string to transmit on both the first and the second transmission frequency prior to lowering the beacon underground, wherein the beacon transmits at the first transmission frequency proximate the first above-ground location and transmits at the second transmission frequency proximate the second above-ground location during a horizontal boring operation.

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