E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/12 (2006.01)
Patent
CA 2407347
An apparatus for use in drilling or producing from a well bore, the apparatus comprising a downhole member such as a drilling device or a production device which is capable of being attached to a tubular such as a drill string, production string or the like, means for rotating a tubular, control means for controlling the rotation of said tubular in order to transmit information along said tubular and means for monitoring the rotation of said tubular and for decoding said information transmitted along said tubular such that a magnitude of a parameter can be determined by the drilling member from the rotation of said tubular. The invention also relates to a method for communicating with a downhole tool using the apparatus.
L'invention concerne un dispositif de forage et de production dans un puits. Ce dispositif comprend un élément de fond tel qu'un dispositif de forage ou un dispositif de production, lequel peut être relié à un élément tubulaire tel qu'une colonne de tiges, une colonne de production etc., des moyens permettant d'entraîner cet élément tubulaire en rotation, des moyens de commande permettant de régler la rotation de cet élément tubulaire afin de transmettre une information le long de l'élément tubulaire et des moyens permettant de surveiller la rotation de ce matériau tubulaire et de décoder l'information transmise le long de cet élément, de manière qu'une grandeur d'un paramètre peut être déterminée par l'élément de forage à partir de la rotation dudit élément tubulaire. L'invention concerne également un procédé permettant de communiquer avec un outil de fond au moyen de ce dispositif.
Halliburton Energy Services Inc.
Marks & Clerk
Mcloughlin Stephen John
LandOfFree
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