A method and apparatus for creating a cemented lateral...

Details A method and apparatus for creating a cemented lateral... A method and apparatus for creating a cemented lateral...

E - Fixed Constructions

21

B

E21B 41/00 (2006.01) E21B 33/14 (2006.01) E21B 29/06 (2006.01)

Patent

CA 2504247

An apparatus for creating a cemented lateral junction including a sleeve (10) with a premachined opening (12) and a cover (14) disposed at the sleeve. A release material (16) is disposed at the cover. Further disclosed is a method for constructing a wellbore which includes preparing a sleeve (10) with a premachined window (12) and a cover (14) positioned to occlude the window and a release material (16) at least a portion of the cover exposed to environment through the window for running in the wellbore. The method may further include installing the sleeve in a wellbore and applying a hardenable agent to an annulus of the wellbore around the sleeve.

La présente invention concerne un appareil pour créer une jonction latérale collée, comprenant un manchon (10) qui présente une ouverture pré-usinée (12) et un revêtement (14) situé sur le manchon. Un matériau antiadhésif (16) est placé sur le revêtement. La présente invention concerne également un procédé pour construire un puits de forage, qui consiste à préparer un manchon (10) présentant une ouverture pré-usinée (12) et un revêtement (14) placé de manière à occulter l'ouverture et un matériau antiadhésif (16) sur au moins une partie du revêtement exposée à l'environnement à travers l'ouverture, afin de le faire passer dans le puits de forage. Le procédé peut également consister à installer le manchon dans un puits de forage et à appliquer un agent durcissable sur un espace annulaire du puits de forage, autour du manchon.

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