Geothermal well head clean out and shut off assembly

Details Geothermal well head clean out and shut off assembly Geothermal well head clean out and shut off assembly

1982-09-03

1984-05-15

Purser, Ernest R.

Wells

Above ground apparatus

Releasable seal or cleaner disengaged by projection on inner...

166311, 166379, 1510416, 137244, 1372455, E21B 33068

Patent

active

044482477

ABSTRACT:
An assembly for cleaning deposited minerals from the interior passages of first and second axially aligned tubular laterals that extend outwardly in opposite directions from a geothermal well head and removably support first and second gate valves from the free ends thereof. The cleaning of the passages in the tubular laterals as well as passages in the first and second gate valves may be conducted with the assembly without killing the well. The assembly also permits a third vertically disposed gate valve on the well head to be removed for repair and maintenance purposes without killing the well, and this is also possible with the first and second gate valves.

REFERENCES:
patent: 2261440 (1941-11-01), Layne
patent: 3830304 (1974-08-01), Cummins
patent: 4184504 (1980-01-01), Carmichael et al.
patent: 4190113 (1980-02-01), Harrison

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