Pumping device using pressurized gas

Details Pumping device using pressurized gas Pumping device using pressurized gas

1987-09-17

1989-06-27

Croyle, Carlton R.

Pumps

One fluid pumped by contact or entrainment with another

Liquid pumped by supplying or exhausting gaseous motive...

417135, 417136, 417138, F04F 106, F04F 300

Patent

active

048424870

ABSTRACT:
There is provided an improved fluid pumping device including an enclosure to be placed downhole in a well. A first hollow tube is received in the enclosure and extends to the surface of the well for removing fluid from the well. A second hollow tube also extends into the enclosure for forcing a gas into the enclosure. The bottom of the enclosure has an opening for permitting fluid to enter. A mechanical mechanism is provided for forcing the closing of the opening in the enclosure so that the device may be utilized in deep wells where high fluid pressures occur.

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patent: 3791763 (1974-02-01), Faldi
patent: 4321017 (1982-03-01), Gottliebson

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