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SYSTEM FOR ROTARY DRILLING BY ELECTRICAL DISCHARGE

  • US 20190316419A1
  • Filed: 06/28/2019
  • Published: 10/17/2019
  • Est. Priority Date: 02/21/2014
  • Status: Abandoned Application
First Claim
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1. Downhole device for rotary drilling comprising:

  • an electricity generator installed at the end of a string of drill pipes and/or drill collars and converting the hydraulic drilling fluid into electrical energy;

    a pulse generator mechanically and electrically connected to the said electricity generator, and powering a system of electrodes carried by the drilling tool;

    an electric drilling tool, mechanically and electrically connected to the said pulse generator, driven in rotation by the string of drill pipes and/or drill collars and comprising a system of active and passive electrodes; and

    an electrical slide switch system.

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