Apparatus and methods for orientation of a tubular string in...

Details Apparatus and methods for orientation of a tubular string in... Apparatus and methods for orientation of a tubular string in...

E - Fixed Constructions

21

B

E21B 29/06 (2006.01) E21B 17/10 (2006.01) E21B 23/00 (2006.01) E21B 47/024 (2006.01)

Patent

CA 2415488

An apparatus and method for orienting tubular strings in wellbores. In one aspect, the invention utilizes the inherent eccentricity of a non-vertical wellbore (160) to provide a means of orienting a portion of casing (100) that contains a pre-milled window (110). The orienting member (140) can be an orientating sleeve (140) disposed around the tubular (100) and substantially covering the window (110).

L'invention concerne un appareil et un procédé permettant l'orientation de colonnes de tubage dans des trous de forage. Selon un aspect, l'invention utilise l'excentricité inhérente d'un trou de forage non vertical (160), fournissant ainsi des moyens permettant d'orienter une partie du tubage (100) qui renferme une fenêtre préalablement fraisée (110). L'organe d'orientation (140) peut être un manchon d'orientation (140) disposé autour du tubage (100) et recouvrant sensiblement la fenêtre (110).

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