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Downhole electrical energy conversion and generation

  • US 9,187,983 B2
  • Filed: 11/07/2011
  • Issued: 11/17/2015
  • Est. Priority Date: 11/07/2011
  • Status: Active Grant
First Claim
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1. A system for converting electrochemical energy to electrical energy downhole comprising:

  • an acidic fluid delivered downhole as part of a downhole wellbore treatment;

    a first electrode;

    a second electrode, the first and second electrodes being adapted and arranged to be deployed downhole and to form an anode and a cathode respectively upon exposure to the acidic fluid in a downhole environment, thereby generating electrical energy;

    a downhole device adapted and arranged to be energized by the generated electrical energy while in the downhole environment; and

    wherein the downhole device is arranged such that it is located between the first and second electrodes and is untethered with the surface such that electrical power from the surface is unavailable to the downhole device.

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