Apparatus and method for transmitting a signal in a wellbore

E - Fixed Constructions – 21 – B

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E21B 17/00 (2006.01) E21B 17/02 (2006.01) E21B 47/12 (2006.01)

Patent

CA 2499331

An apparatus for transmitting a signal from deep in a wellbore through a string of tubulars, preferably drill pipe, the apparatus comprising an signal conductor and a tubular characterised in that said signal conductor is located adjacent an interior surface of the tubular, preferably drill pipe section. A transmission apparatus for transmitting a signal from deep in a wellbore through a string of tubulars, preferably drill pipe, the apparatus comprising an electrical conductor arranged in a tubular, preferably drill pipe section characterised in that the apparatus further comprises an amplifier-repeater.

L'invention concerne un appareil permettant de transmettre un signal d'une partie profonde d'un puits de forage à travers un train de tubulaires, de préférence une tige de forage. Ledit appareil comprend un conducteur de signal et un tubulaire, et est caractérisé en ce que ledit conducteur de signal est positionné de manière adjacente à une surface intérieure du tubulaire, de préférence une partie de la tige de forage. L'invention concerne également un appareil de transmission permettant de transmettre un signal d'une partie profonde d'un puits de forage à travers un train de tubulaires, de préférence une tige de forage. Cet appareil comprend un conducteur électrique monté dans un tubulaire, de préférence une partie de la tige de forage, et est caractérisé en ce qu'il comprend un amplificateur-répéteur.

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