Method and apparatus for multilateral well entry

Details Method and apparatus for multilateral well entry Method and apparatus for multilateral well entry

E - Fixed Constructions

21

B

E21B 43/30 (2006.01) E21B 23/03 (2006.01) E21B 23/04 (2006.01) E21B 41/00 (2006.01) E21B 47/09 (2006.01)

Patent

CA 2385757

In one embodiment, the invention relates to a method for location, or location and entry, of a lateral wellbore from a main wellbore of a multilateral hydrocarbon well, the method being characterized by unique operation of a controllably bent sub. The invention further relates to a system for location, or location and entry of a lateral wellbore, including a specialized controllably bent sub, and most preferably, to a controllably bent sub designed for efficient lateral wellbore location and/or entry.

Dans un mode de réalisation, l'invention concerne un procédé de localisation, ou de localisation et de rentrée, d'un puits de forage latéral (3) à partir d'un puits de forage principal (2) du puits d'hydrocarbure multilatéral (1), le procédé étant caractérisé par le fonctionnement unique d'un raccord coudé de façon régulable (5). L'invention concerne également un système de localisation, ou de localisation et de rentrée d'un puits de forage latéral, comprenant un raccord coudé de façon régulable spécialisé (5), et idéalement, un raccord coudé de façon régulable (5), conçu pour permettre une localisation et/ou une rentrée efficace de puits de forage latéral.

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