E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/04 (2006.01)
Patent
CA 2540648
A method and system is disclosed for automatically correcting for depth errors in measurements taken from a drillstring during the drilling phase of the construction of a hydrocarbon wellbore. The correction is based on a stress profile which in turn is based on the states of the drilling rig, drill string description length spec, borehole description trajectory, friction factor and weight on bit.
La présente invention concerne un procédé et un système pour corriger automatiquement des erreurs de profondeur sur des mesures effectuées sur un train de forage au cours de la phase de forage de la construction d'un puits de forage d'hydrocarbures. La correction se base sur un profil de contrainte qui se base lui-même sur les états de l'appareil de forage, la spécification de longueur décrite par le train de forage, la trajectoire décrite par le trou de forage, le coefficient de frottement et le poids exercé sur le trépan.
Aldred Walter
Ringer Maurice
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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