E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 44/00 (2006.01)
Patent
CA 2269498
The present invention provides a drilling system (10) that uti- lizes an integrated bottom hole assembly (90). The bottom hole as- sembly contains sensors (59, S1-S6, 64, 76, 74) for determining the health of the bottom hole assembly, borehole condition, formation evaluation characteristics, drilling fluid physical and chemical prop- erties, bed boundary conditions around and in front of the drill bit, seismic maps and the desired drilling parameters that include the weight on bit, drill bit speed and the fluid flow rate. A downhole processor (70) controls the operation of the various devices in the bottom hole assembly to effect changes to the drilling parameters and the drilling direction to optimize the drilling effectiveness.
La présente invention prévoit un dispositif de forage (10) utilisant un ensemble fond de puits intégré (90). L'ensemble fond de puits comprend des capteurs (59, S1-S6, 64, 76, 74) permettant de déterminer l'état dudit ensemble, l'état du trou de forage, les caractéristiques d'évaluation de la formation, les propriétés physiques et chimiques du fluide de forage, les conditions à la limite de la couche autour et devant le trépan, les cartes sismiques et les paramètres de forage voulus, dont le poids sur l'outil, la vitesse du trépan et le débit du fluide. Un processeur de fond (70) commande la marche des différents dispositifs dans l'ensemble fond de puits et modifie ainsi les paramètres et la direction de forage en vue d'optimiser l'efficacité du forage.
Fincher Roger W.
Harrell John W.
Krueger Volker
Macdonald Robert P.
Nasr Hatem N.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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