System and method for rig state detection

E - Fixed Constructions – 21 – B

Patent

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E21B 44/00 (2006.01)

Patent

CA 2511203

A method and system is disclosed for automatically detecting the state of a drilling rig during the drilling process of a wellbore. Two or more, but preferably four independent input data channels are received, each input data channel representing a series of measurements made over time during the drilling process. Based on the input channels the most likely state of the drilling rig is detected from at least three possible rig states. The detection method is preferably probabilistic and even more preferably based on particle filtering techniques. The preferred systems and methods disclosed are also capable of detecting events and displaying or notifying drilling personnel of the detected events and suggesting corrective action.

L'invention concerne un procédé et un système permettant de détecter automatiquement l'état d'un appareil de forage pendant un processus de forage de puits. Ledit procédé consiste à recevoir au moins deux, et de préférence, quatre canaux indépendants de données d'entrée, chaque canal de données d'entrée représentant une série de mesures effectuées pendant la durée du processus de forage; et à détecter, en fonction des canaux d'entrée, l'état le plus probable de l'appareil de forage à partir d'au moins trois états d'appareil de forage possibles. Le procédé de détection est, de préférence, probabiliste et idéalement basé sur des techniques de filtrage de particules. Les systèmes et les procédés préférés décrits peuvent également détecter des événements et afficher ou notifier à un personnel de forage les événements détectés et l'action corrective suggérée.

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