Method of stabilizing a downhole drilling motor and a...

Details Method of stabilizing a downhole drilling motor and a... Method of stabilizing a downhole drilling motor and a...

E - Fixed Constructions

21

B

E21B 17/10 (2006.01) E21B 4/00 (2006.01) E21B 31/03 (2006.01)

Patent

CA 2439331

A method of stabilizing a downhole drilling motor. A first step involves securing a plurality of vanes to an exterior surface of a stator housing of the drilling motor. A second step involves passing a flow of drilling fluids past the exterior surface of the stator housing between the vanes to create an area of pressure differential and using such pressure differential to protect the stator housing from becoming differentially stuck while drilling.

L'invention concerne une méthode de stabilisation de moteur de forage de fond. La première étape consiste à fixer un ensemble d'aubes à une surface externe d'un bâti de stator du moteur de forage. La deuxième étape consiste à faire passer un flux des fluides de forage au-delà de la surface externe du bâti de stator entre les aubes pour créer une zone de différence de pression et à utiliser une telle différence de pression pour empêcher que le bâti de stator soit bloqué de façon différentielle durant le forage.

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