AN INSTALLATION AND A METHOD FOR PUMPING UP FLUID FROM THE EARTH'S CRUST

摘要

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.