Method for construction and completion of injection wells

Details Method for construction and completion of injection wells Method for construction and completion of injection wells

E - Fixed Constructions

21

B

E21B 43/10 (2006.01) E21B 17/10 (2006.01) E21B 43/08 (2006.01) E21B 43/11 (2006.01) E21B 43/16 (2006.01)

Patent

CA 2493901

A method for well construction and completion is disclosed. Generally the method comprises the steps of 1) drilling through an injection zone, 2) positioning an extendable permeable element on the casing capable of stopping formation material from entering the well bore, 3) positioning the casing such that the extendable elements are aligned with the injection zone, 4) extending the member such that they come into direct contact with the injection zone formation, 5) running tubing/completion equipment, and 6) begin injecting the desired fluids into the well. Thus eliminating the need to perforate and gravel pack the well while improving reliability of the injection well completion.

L'invention concerne un procédé pour la construction et la complétion de puits. En général, ledit procédé comprend les étapes suivantes: 1) forage à travers une zone d'injection, 2) positionnement d'un élément perméable extensible sur le cuvelage, pouvant empêcher le matériau de la formation d'entrer dans le trou de forage, 3) positionnement du cuvelage de sorte que les éléments extensibles soient alignés par rapport à la zone d'injection, 4) extension desdits éléments de sorte qu'ils viennent en contact direct avec la formation de la zone d'injection, 5) mis en oeuvre de l'équipement de tubage/complétion et 6) début de l'injection de fluide désiré dans le puits. L'invention supprime la nécessité de perforer le puits et de faire appel à un massif de gravier, et améliore la fiabilité de la complétion du puits d'injection.

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