Universal downhole tool control apparatus and methods

Details Universal downhole tool control apparatus and methods Universal downhole tool control apparatus and methods

E - Fixed Constructions

21

B

E21B 47/06 (2006.01) E21B 47/01 (2006.01) E21B 47/12 (2006.01)

Patent

CA 2436173

A method and apparatus for internal data conveyance within a well from the surface to a downhole tool or apparatus and for returning downhole tool data to the surface, without necessitating the provision of control cables and other conventional conductors within the well. One embodiment involves sending telemetry elements such as tagged drop balls or a fluid having specific chemical characteristics from surface to a downhole tool as a form of telemetry. The telemetry element or elements are provided with identification and instruction data, which may be in the form of data tags, such as RF tags or a detectable chemical constituent. The downhole tool or apparatus is provided with a detector and microcomputer and is capable of recognizing the telemetry element and communicating with it or carrying out instructions that are provided in the telemetry data thereof.

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