Apparatus for directing and steering the foremost part of a...

E - Fixed Constructions – 21 – B

Patent

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E21B 7/06 (2006.01) E21B 17/046 (2006.01) E21B 23/00 (2006.01)

Patent

CA 2278804

Apparatus for directing and steering of the foremost part of a drillstring by earth drillings, formed by a connecting part formed by a lower housing part and an upper housing part, provided with a central opening for the passing of the drilling fluid and a drive shaft of the motor of the bit, or motor rotor, while one housing part is provided with an inserting part that is intended to be inserted in the other housing part, and of which the outer circumference is smaller than the inner circumference of the other housing part that is intended to receive the inserting part, while the housing parts are provided with means by which they can be detachably connected to each other.

Cette invention se rapporte à un dispositif conçu pour diriger et piloter la partie la plus à l'avant d'une tige de sonde sur des sites de forage. Ledit dispositif comporte d'une part, une pièce de connexion constituée d'un logement inférieur et d'un logement supérieur et munie d'une ouverture centrale pour le passage du fluide de forage et, d'autre part, d'un arbre menant de moteur, ou rotor de moteur, une des parties du logement étant équipée d'une pièce d'insertion qui est conçue pour être introduite dans l'autre partie du logement, et dont le pourtour externe est inférieur au pourtour interne de l'autre partie de logement conçue pour recevoir ladite pièce d'insertion, lesdites parties du logement étant pourvues d'organes qui permettent de les relier l'une à l'autre, de manière libérable.

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