E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/10 (2006.01) E21B 43/08 (2006.01)
Patent
CA 2461673
The present invention provides an encapsulation for housing instrumentation lines, control lines, or instruments downhole. In one use, the encapsulation (10) resides between an expandable downhole tool (20), such as an expandable sand screen, and the wall (48) of the wellbore. The encapsulation is specially profiled to allow the downhole tool to be expanded into the wall of the wellbore without leaving a channel outside of the tool through which formation fluids might vertically migrate. The encapsulation is useful in both cased hole and open hole completions.
L'invention concerne une encapsulation permettant de loger des lignes d'instrumentation, des lignes de contrôle, ou des instruments de fond. Selon un mode d'utilisation, l'encapsulation (10), réside entre un outil de fond extensible (20), de type tamis à sable extensible, et la paroi (48) d'un puits de forage. Ladite encapsulation est spécialement profilée pour permettre à l'outil de fond de s'étendre dans la paroi du puits de forage sans quitter un canal à l'extérieur de l'outil, au moyen duquel des fluides de formation peuvent migrer dans le sens vertical. Ladite encapsulation est à la fois utile pour des complétions de trous tubés ainsi que pour des complétions de trous ouverts.
Marks & Clerk
Weatherford/lamb Inc.
LandOfFree
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