Methods and systems for designing and/or selecting drilling...

E - Fixed Constructions – 21 – B

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E21B 10/00 (2006.01) E21B 41/00 (2006.01) E21B 44/00 (2006.01)

Patent

CA 2624106

Methods and systems may be provided for simulating forming a wide variety of directional wellbores including wellbores with variable tilt rates and/or relatively constant tilt rates. The methods and systems may also be used to simulate forming a wellbore in subterranean formations having a combination of soft, medium and hard formation materials, multiple layers of formation materials and relatively hard stringers disposed throughout one or more layers of formation material. Values of bit steerability and controllability calculated from such simulations may be used to design and/or select drilling equipment for use in forming a directional wellbore.

La présente invention concerne des procédés et des systèmes permettant de simuler la formation d'une vaste gamme de puits de forage directionnels comprenant des puits de forage à taux d'inclinaison variables et/ou taux d'inclinaison relativement constants. Les procédés et systèmes de cette invention peuvent également être utilisés pour simuler la formation d'un puits de forage dans des formations souterraines comportant une combinaison de matériaux de formation meubles, moyens et durs, de multiples couches de matériaux de formation et des traînées parallèles relativement dures réparties dans une ou plusieurs couches de matériau de formation. Des valeurs de maniabilité et de contrôlabilité du trépan calculées à partir de telles simulations peuvent servir à concevoir et/ou sélectionner l'équipement de forage à utiliser dans la formation d'un puits de forage directionnel.

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