Wells – With heating – refrigerating or heat insulating means – With eduction pump or plunger in well
Patent
1995-09-29
1997-04-15
Dang, Hoang C.
Wells
With heating, refrigerating or heat insulating means
With eduction pump or plunger in well
166 664, 166106, 417417, 4174233, E21B 4300
Patent
active
056200480
ABSTRACT:
Oil-well installation extending from the surface (14) to an oil-bearing rock stratum (16) comprising a tubing (20), arranged in the well and forming a flow channel to the surface for hydrocarbons originating from the oil-bearing rock stratum, a casing (18) delimiting the wall of the well, and a seal (24) arranged at the well bottom between the tubing (20) and the casing (18) so as to form a chamber (26) isolated from the hydrocarbons, the installation furthermore comprising, in the well, a pump (30, 48) and an electric motor (34, 46) which is intended to actuate the pump. According to the invention, the stator (40, 52) of the electric motor (34, 46) is arranged outside the tubing (20) and isolated thereby from the hydrocarbons flowing inside the tubing.
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Dang Hoang C.
Elf Aquitaine Production
LandOfFree
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