Wells – Processes – Assembling well part
Patent
1993-03-15
1994-11-15
Bui, Thuy M.
Wells
Processes
Assembling well part
166 68, E21B 4300
Patent
active
053639227
ABSTRACT:
The invention relates to a device and method for installing a submerged water pump in an artesian well at a desired depth or lifting the pump to do necessary maintenance in an easy manner. The device has two portions, an upper portion and a lower portion. The upper portion is, in general, simple slinging and lifting mechanical devices whereas the lower portion has the configuration of an iron core of a car wheel surrounded by a rubber tire which is supplied with compressed air from an air supply source outside the well. The pump is fitted to the lower side or base of the lower portion and lowered into the well to the desired depth by the upper portion of the device before the tire is supplied with the compressed air. The tire is then supplied with the compressed air and, as a result, inflates to extend against the inside wall of the casing of the well. This fits or installs the pump against movement at the desired depth until the compressed air is released, the tire deflates and the pump is lifted from the well by the upper portion of the device.
REFERENCES:
patent: 4475872 (1984-10-01), Foughty
patent: 4751969 (1988-06-01), Klaeger
patent: 4830113 (1989-05-01), Geyer
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