E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/068 (2006.01) E21B 34/02 (2006.01)
Patent
CA 2620849
An improvement in a chemical delivery system for a plunger lift for enhancing oil and gas recovery in a well having a well head and which employs a plunger includes a chamber communicably connected to a top of the well head and operably disposed thereon and including a ball check valve device which controls communication between a first section which receives chemicals therein for delivery into the well and a second section which communicates chemicals from the first section to a plunger in the well, and means for retaining the ball valve in one of an open position and a closed position as a function of the well being shut in.
Cette invention porte sur l'amélioration d'un système de distribution de produits chimiques d'un appareil de pompage pneumatique et vise à accroître la récupération du pétrole et du gaz dans un puits doté d'une tête de puits; cette dernière, qui comporte un piston, comprend une chambre de communication avec la partie supérieure de la tête du puits où se trouve un clapet à bille qui commande la distribution entre la première section, qui reçoit les produits chimiques pour distribution dans le puits, et la seconde section, qui transmet les produits chimiques aux pistons du puits; ces éléments conservent le clapet à bille en position ouverte ou en position fermée selon que le puits est fermé ou non.
Farris Sam
Smiths Ip
LandOfFree
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