EP 0704599 B1 19980520 - Installation for oil well equipped with a downhole electrical pump
Title (en)
Installation for oil well equipped with a downhole electrical pump
Title (de)
Einrichtung für mit einer Elektro-Bohrlochpumpe ausgerüsteten Erdölbohrung
Title (fr)
Installation pour puits pétrolier munie d'une électropompe en fond de puits
Publication
Application
Priority
FR 9411750 A 19940930
Abstract (en)
[origin: EP0704599A1] The installation, which extends from the surface (14) to a petroleum bearing layer (16) at the bottom of the well (10), comprises a tube (20) which forms a channel through which hydrocarbons can flow to the surface, with a seal (24) round the lower end of the tube which forms a chamber (26) isolated from the hydrocarbons. The installation includes a pump (30) and an electric motor (34) to actuate it, with the electric motor stator (40) and cable (38) situated in the chamber (26) surrounding the tube. The tube is made from a non-magnetic material, at least for the portion of its length containing the electric motor, which can be linear or rotary. In addition, the upper end of the motor has a coupling head (44) which allows its mobile section and the pump to be raised to the surface.
IPC 1-7
IPC 8 full level
E21B 43/12 (2006.01); F04B 47/06 (2006.01)
CPC (source: EP US)
E21B 43/128 (2013.01 - EP US); F04B 47/06 (2013.01 - EP US)
Citation (examination)
US 4562385 A 19851231 - RABSON THOMAS A [US]
Designated contracting state (EPC)
AT DE FR GB IT NL
DOCDB simple family (publication)
EP 0704599 A1 19960403; EP 0704599 B1 19980520; AT E166425 T1 19980615; CA 2159556 A1 19960331; DE 69502563 D1 19980625; DE 69502563 T2 19990114; FR 2725238 A1 19960405; FR 2725238 B1 19961122; NO 953864 D0 19950929; NO 953864 L 19960401; OA 10232 A 19970919; US 5620048 A 19970415
DOCDB simple family (application)
EP 95402176 A 19950928; AT 95402176 T 19950928; CA 2159556 A 19950929; DE 69502563 T 19950928; FR 9411750 A 19940930; NO 953864 A 19950929; OA 60716 A 19950929; US 53679095 A 19950929