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Crustal and disturbance field survey correction

  • US 10,408,055 B2
  • Filed: 06/22/2016
  • Issued: 09/10/2019
  • Est. Priority Date: 06/22/2015
  • Status: Active Grant
First Claim
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1. A system to continuously control drilling in an area based on a real-time on-site magnetic survey of the area, the system comprising:

  • an autonomous vehicle operable to traverse over a predetermined area;

    a magnetometer coupled to the autonomous vehicle and operable to obtain magnetic measurements at a controlled rate, the magnetometer obtaining a uniform sampling of the magnetic measurements over the predetermined area;

    a processor configured to obtain the magnetic survey from the magnetic measurements and determine the azimuth of a borehole formed within a subterranean formation; and

    a controller operably coupled with a drill string, the controller operable to continuously adjust a drill bit disposed on the drill string based on the azimuth of the borehole as determined by the magnetic survey, wherein the controller operably adjusts the drill bit to a predetermined well path.

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