Orienting downhole tools

Details Orienting downhole tools Orienting downhole tools

E - Fixed Constructions

21

B

E21B 43/119 (2006.01) E21B 47/024 (2006.01)

Patent

CA 2328454

A method and apparatus of orienting a tool in a wellbore includes running an orientation string into the wellbore, the orienting string including a positioning device, a measurement device (e.g., a gyroscope), and the tool. The orientation string is positioned in a predetermined interval in the wellbore. The azimuthal orientation of the orientation string is measured with the measurement device. The orientation string is removed from the wellbore, and a tool string is run into the wellbore, the tool string including substantially similar components as the orientation string such that the tool string follows substantially the same path as the orientation string.

L'invention porte sur un procédé et un appareil d'orientation d'un outil à l'intérieur d'un puits consistant à y introduire un train de tiges orienteur comportant un dispositif de positionnement, un dispositif de mesure (par exemple un gyroscope) et l'outil. Le train de tiges orienteur est positionné à une profondeur donnée dans le puits et son orientation en azimut est mesurée à l'aide du dispositif de mesure, puis il est retiré du puits et remplacé par un train de tige de travail dont les composants sont sensiblement similaires et qui suit sensiblement la même trajectoire.

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