Patent ID: 6378627
Filing Date: 2002-04-30
Classification: E21B

Abstract:
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.