Downhold injection of well-treating chemical during production b

Details Downhold injection of well-treating chemical during production b Downhold injection of well-treating chemical during production b

1981-05-28

1982-09-07

Leppink, James A.

Wells

Processes

Entraining or incorporating treating material in flowing...

166244C, 166371, 166372, 417 54, E21B 4300

Patent

active

043478999

ABSTRACT:
A liquid well-treating chemical composition is injected into the production tubing during gas lift operations by providing a differential pressure operated valve downhole from the lowermost gas lift flow valve and maintaining sufficient liquid head of the chemical composition in the annulus to open the valve and cause the liquid chemical composition to pass into the interior of the production tubing.

REFERENCES:
patent: 1602190 (1926-10-01), Eddy et al.
patent: 2380639 (1945-07-01), Eris
patent: 2654436 (1953-10-01), Carlisle et al.
patent: 3090316 (1963-05-01), Montgomery
patent: 3215087 (1965-11-01), McLeod, Jr.
patent: 3566970 (1971-03-01), Crow et al.
patent: 4031955 (1977-06-01), Ledet

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