EP 0757758 B1 19981028 - AN INSTALLATION AND A METHOD FOR PUMPING UP FLUID FROM THE EARTH'S CRUST
Title (en)
AN INSTALLATION AND A METHOD FOR PUMPING UP FLUID FROM THE EARTH'S CRUST
Title (de)
VERFAHREN UND VORRICHTUNG ZUR FÖRDERUNG VON FLUIDEN AUS ÖLBOHRLÖCHERN
Title (fr)
INSTALLATION ET PROCEDE D'EXTRACTION PAR POMPAGE D'UN LIQUIDE A PARTIR DE LA CROUTE TERRESTRE
Publication
Application
Priority
- NL 9500157 W 19950428
- NL 9400708 A 19940429
Abstract (en)
[origin: WO9530090A1] Installation for pumping up liquids from the earth's crust, comprising: a screw pump lowered into the earth which is provided with a first screw member and a counter-screw member, drive means arranged on or close to the earth's surface for driving the screw member which in turn drives the counter-screw member; and transmission means for transmitting the drive produced by the drive means, which transmission means extend from the drive means on or close to the earth's surface to the lowered screw pump.
IPC 1-7
IPC 8 full level
F04C 13/00 (2006.01)
CPC (source: EP)
F04C 13/008 (2013.01)
Designated contracting state (EPC)
DE FR IT SE
DOCDB simple family (publication)
WO 9530090 A1 19951109; AU 2319995 A 19951129; DE 69505653 D1 19981203; DE 69505653 T2 19990325; EP 0757758 A1 19970212; EP 0757758 B1 19981028; NL 9400708 A 19951201
DOCDB simple family (application)
NL 9500157 W 19950428; AU 2319995 A 19950428; DE 69505653 T 19950428; EP 95916853 A 19950428; NL 9400708 A 19940429