Self-operating chemical feeder for an oil well

Details Self-operating chemical feeder for an oil well Self-operating chemical feeder for an oil well

1976-10-18

1977-11-22

Purser, Ernest R.

Wells

With time or distance measuring, temperature responsive or...

13762413, E21B 4300

Patent

active

040591492

ABSTRACT:
A self-operating chemical feeder for an oil well is disclosed comprising a new combination of valves, Timers, a pump, an injection line, a flush line, and a tank of chemical wherein a first valve is responsive to a first timer for repeatedly ejecting spaced apart consecutive precise slugs of a chemical to the injection line for delivery to the oil well and for spacing each of the slugs from the next consecutive slug by a predetermined precise period of time. A second valve is responsive to a second timer for ejecting spaced apart slugs of flush liquid to the injection line, one flush liquid slug for each chemical slug, and for spacing each of the flush liquid slugs by a predetermined precise period of time for insuring oil well treatment on a regular basis as scheduled and for eliminating personnel time required for manually flushing each precise slug of said chemical throughout the well for an extended period of time.

REFERENCES:
patent: 3156537 (1964-11-01), McLeod
patent: 3228472 (1966-01-01), Rhoads
patent: 3707160 (1972-12-01), Query
patent: 3901313 (1975-08-01), Doniguian et al.

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