E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/12 (2006.01) E21B 43/00 (2006.01) E21B 43/38 (2006.01)
Patent
CA 2251611
The invention concerns a pumping installation designed for being mounted in an oil well (10) extending from the surface to a layer of oil-bearing rock, comprising a pipe column (18) at the lower end of which is mounted a pump (20), a joint (28; 42), mounted in the well around the pipe column (18) and delimiting a chamber (31) at the lower end of the well, in which is arranged a pump. The invention is characterised in that the installation further comprises a hydroejector (32), in the pipe column (18), including a low pressure zone (34) opening into the upper end of the chamber (31).
Installation de pompage destinée à être montée dans un puits pétrolier (10) s'étendant de la surface jusqu'à une couche de roche pétrolifère, comprenant un tubage (18) à l'extrémité inférieure duquel est montée une pompe (20), un joint (28; 42), monté dans le puits autour du tubage (18) et délimitant une chambre (31) à l'extrémité inférieure du puits, dans laquelle est disposée la pompe. Selon l'invention l'installation comprend, de plus, un hydro-éjecteur (32), dans le tubage (18), comprenant une zone de dépression (34) s'ouvrant dans l'extrémité supérieure de la chambre (31).
Elf Exploration Production
Robic
LandOfFree
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