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Downhole power generation

  • US 6,253,847 B1
  • Filed: 08/05/1999
  • Issued: 07/03/2001
  • Est. Priority Date: 08/13/1998
  • Status: Expired due to Term
First Claim
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1. A downhole electrical power generation apparatus comprising:

  • a first electrode comprising at least part of a borehole casing within a borehole;

    a second electrode; and

    a cement used to hold the first electrode in place, the cement comprising an electrolyte in electrical communication with the first and second electrodes.

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