Apparatus for dispensing chemicals into oil and gas wells

Details Apparatus for dispensing chemicals into oil and gas wells Apparatus for dispensing chemicals into oil and gas wells

1987-06-12

1988-11-22

Novosad, Stephen J.

Wells

Automatic

166 70, 166 751, 137268, 15 35, E21B 2308, E21B 33068, E21B 3706

Patent

active

047858800

ABSTRACT:
An apparatus for automatically dispensing chemicals into the well bore of a hydrocarbon producing well utilizes a double acting cylinder and piston to sequentially operate a plurality of valves associated with the well. The handles of each valve have a spring steel tine secured thereto which engages with a portion of the piston shaft which actuates the operation of each valve.

REFERENCES:
patent: 2713909 (1955-07-01), Baker
patent: 3039531 (1962-06-01), Scott
patent: 3160210 (1964-12-01), Brewer
patent: 3164206 (1965-01-01), Sharp
patent: 3211225 (1965-10-01), Thiessen et al.
patent: 3218659 (1965-11-01), Rowley
patent: 3396789 (1968-08-01), Dean
patent: 3403729 (1968-10-01), Hickey
patent: 4235849 (1980-11-01), Handeland
patent: 4694900 (1987-09-01), Behrens

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