E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/12 (2006.01)
Patent
CA 2641404
The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection / gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an internal body (2) moveable within the outer housing (1) with an internal bore(3) which in a first closed position is closed with a metal to metal seal system between the outer housing (1) and the internal body (2), which internal body (2) is operated by pressure differential across the internal body (2), where the internal body (2) is designed with slots (4) forming outlets of the internal bore (3) which in an open position of the device leads to the outside of the outer housing (1).
La présente invention concerne un dispositif conçu pour l'injection de fluides dans un puits de forage, généralement un puits de forage en mer, pour la production de pétrole, ainsi qu'un système d'injection de fluide à des fins d'injection de gaz / d'extraction au gaz. Le dispositif comporte une enveloppe (1) extérieure creuse à l'intérieur de laquelle peut se déplacer un corps (2) interne possédant un alésage (3) interne qui, dans une première position fermée, est fermé par un système d'étanchéité métal sur métal prévu entre l'enveloppe (1) extérieure et du corps (2) interne, ledit corps (2) interne étant actionné par un différentiel de pression à travers le corps (2) interne, le corps (2) interne étant conçu avec des fentes (4) formant des sorties de l'alésage (3) interne qui, lorsque le dispositif est en position ouverte, mène à l'extérieur de l'enveloppe (1) extérieure.
Kleppa Erling
Norland Tom
Stokka Oyvind
Tveiten Magnar
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Petroleum Technology Company As
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