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Autonomous downhole oilfield tool

  • US 6,378,627 B1
  • Filed: 09/23/1997
  • Issued: 04/30/2002
  • Est. Priority Date: 09/23/1996
  • Status: Expired due to Term
First Claim
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1. An autonomous downhole oilfield tool comprising:

  • a) a body adapted to be delivered into a wellbore from the surface and be resident in the wellbore;

    b) a source of electrical power operatively associated with the body;

    c) at least one sensor associated with the body monitoring at least one operating parameter of the tool relative to its environment;

    d) a microprocessor associated with the body receiving data from the sensor;

    e) memory associated with the microprocessor providing information for operating instructions to the body;

    f) transport mechanism controlled by the microprocessor and moving the body within the wellbore; and

    g) an end work device associated with the body performing a desired function downhole h) other equipment operatively associated with the well bore having communications capability; and

    i) communications equipment associated with said body for communicating with said other equipment.

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