E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/08 (2006.01) E21B 7/06 (2006.01) E21B 23/00 (2006.01) E21B 23/12 (2006.01) E21B 41/00 (2006.01) E21B 43/14 (2006.01) E21B 47/00 (2012.01) G03B 37/00 (2006.01)
Patent
CA 2233227
In a well having at least one deviated wellbore drilled as an extension of a primary wellbore, a method and apparatus are disclosed for selectively re-entering a deviated wellbore. The method comprises running a diverter assembly into the primary wellbore proximate the opening at the junction of the primary wellbore and the deviated wellbore, aligning the diverter assembly having an upper whipstock member with a diverter face to position the diverter face to facilitate diversion of tools for re-entry into the deviated wellbore, and anchoring the diverter assembly in the primary wellbore.
La présente invention concerne un procédé et un appareil qui sont destinés à un forage tubé (10) à partir duquel partent un ou plusieurs drains tubés (22, 24) et cimentés de façon que l'ouverture (44) ou le raccordement de forme elliptique avec le puits primaire (10) soit étanches et coupés au ras de la paroi intérieure du tubage du puits primaire (18), et qui permettent: (a) d'isoler chaque complétion perforée et/ou chaque complétion de drain (22, 24) dans le forage primaire (10), (b) de disposer d'organes de régulation de débit (162, 164) pour chaque complétion de façon à permettre les tests sélectifs, une stimulation, une production ou un abandon, et (c) de faciliter la rentrée sélective dans n'importe quel travail de réparation.
Halliburton Energy Services Inc.
Marks & Clerk
Natural Reserves Group Inc.
LandOfFree
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