Automatic well treatment system

Details Automatic well treatment system Automatic well treatment system

1981-09-04

1983-03-08

Purser, Ernest R.

Wells

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

166 53, 1376242, E21B 4312

Patent

active

043758339

ABSTRACT:
A system for chemical treatment of producing oil wells has automatically actuated valves operated by a control circuit. The control circuit causes the system to automatically switch the well from production to treatment status without shutting down. After a predetermined treatment period, wherein well fluids mixed with treatment chemical are recirculated throughout the well, the control circuit causes the system to change state and switch to production status. One embodiment of a means for pumping the treatment chemical into the well includes a continuous pump actuated by the mechanism of the well pump, and which includes two electrically actuated valves. The control circuit automatically operates the valves to cause treatment chemical to be injected into the well when desired, then changes the position of the valves so that the chemical which is continuously being pumped will return to the storage tank in a continuous stream.

REFERENCES:
patent: 3223167 (1965-12-01), Hampton
patent: 3242990 (1966-03-01), Keaton, Jr.
patent: 3710867 (1971-01-01), Bansbach
patent: 4064936 (1977-12-01), McClure
patent: 4132268 (1979-01-01), Harrison
patent: 4211279 (1980-07-01), Isaacks
patent: 4235849 (1980-11-01), Handeland
patent: 4352376 (1982-10-01), Norwood

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