F - Mech Eng,Light,Heat,Weapons – 04 – F
Patent
F - Mech Eng,Light,Heat,Weapons
04
F
F04F 1/20 (2006.01) E21B 43/12 (2006.01) F16K 15/02 (2006.01)
Patent
CA 2435580
The present invention relates to a gas lift valve (34) for use in an oil well producing by means of gas lift, said gas lift valve (34) making use of a central body venturi (40) for both controlling the flow of the injection gas from the annulus (6) between the tubing (3) and the casing (2) of the oil well, and precluding a reverse flow of fluids from said oil well towards said annulus(6).
La présente invention porte sur une soupape de gaz lift destinée à être utilisée dans un puits de pétrole de production par allègement au gaz, cette soupape servant de tube venturi à corps central pour réguler l'écoulement de gaz d'injection depuis l'espace annulaire se trouvant entre le tubage et le cuvelage du puits de pétrole, et empêcher la formation d'un écoulement inverse de fluides du puits vers l'espace annulaire. DRAWING FIG. 4 2 ... CUVELAGE 3 ... TUBAGE 6 ... ESPACE ANNULAIRE 12 ... MANDRIN TRADITIONNEL DE GAZ LIFT 13 ... CORPS 15 ... SUPPORT Latéral 16 ... SUPPORTS AUXILIAIRES 20 ... CHAMBRE INTERNE (SOUPAPE DE GAZ LIFT) 24 ... CHAMBRE INTERNE (SUPPORT LATERAL) 25 ... ORIFICE D'EVACUATION DU GAZ 34 ... SOUPAPE DE GAZ LIFT 40 ... VENTURI CORPS CENTRAL 41 ... PALE PRIMAIRE 42 ... SIEGE 43 ... LIMITEUR DE DEPLACEMENT 47 ... PORT D'ADMISSION DU GAZ 49 ... CORPS 53 ... EXTREMITE CREUSE 56 ... PORT D'EVACUATION DU GAZ
Gowling Lafleur Henderson Llp
Petroleo Brasileiro S.a. - Petrobras
LandOfFree
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