E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/53
E21B 37/00 (2006.01) E03B 3/15 (2006.01) E21B 33/00 (2006.01) E21B 37/08 (2006.01)
Patent
CA 1088417
ABSTRACT OF THE DISCLOSURE: A device cleaning, widening and reparing of wells comprising a pipe for supplying, through a valve, compressed- air into the well, a water and air discharge pipe coaxially surrounding said air supply pipe and terminating at its upper end with a bell airtightly welded to the periphery of the air supply pipe, said water and air discharge pipe at its upper part having a first port communicating with a water discharge pipe through a valve and a second port communicating with an air discharge pipe through a valve; a head surrounding the upper portion of the water and air discharge pipe, at its upper end airtightly welded to the periphery of said water and air discharge pipe and at its lower end terminating in a flange detachably secured to the upper end of the well-jacket; said head having a third port communicating through a valve with a pipe for discharging and similar purposes; moreover being privided two annular rubber diaphragms for defining in the depth of the well the zone in which the compressed-air has to be blown for widening the well; other means being provided to remove deposits, stones and putrid waters. Another device is provided to remove the pebble gravel of the well-filter and earth bloks clogging the well-filter.
293291
Levoni Carlo F.
Levoni Gian P.
Levoni Carlo F.
Levoni Gian P.
Robic Robic & Associes/associates
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