Monitoring downhole conditions with drill string distributed...

E - Fixed Constructions – 21 – B

Patent

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E21B 47/12 (2006.01) E21B 47/16 (2006.01)

Patent

CA 2717593

A method of monitoring downhole conditions in a borehole includes receiving sensor data through a network of nodes provided at selected positions on a drill string disposed in the borehole. An inference is made about the downhole condition from the sensor data. A determination is made whether the downhole condition matches a target downhole condition within a set tolerance. At least one parameter affecting the downhole condition is selectively adjusted if the downhole condition does not match the target downhole condition within the set tolerance.

La présente invention concerne un procédé de monitorage de conditions de fond dans un trou de forage, comprenant la réception de données de détection par lintermédiaire dun réseau de nuds disposé dans des positions sélectionnées sur un train de forage disposé dans un trou de forage. Une hypothèse concernant la condition de fond est émise à partir des données détection. On détermine si la condition de fond concorde avec une condition de fond cible dans les limites dune tolérance fixée. Au moins un paramètre affectant la condition de fond est ajusté sélectivement si la condition de fond ne concorde pas avec la condition de fond cible dans les limites de la tolérance fixée.

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