Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1987-09-11
1988-12-20
Dang, Hoang C.
Wells
With below and above ground modification
Eduction pump or plunger in well
166106, 166310, 166902, E21B 4300
Patent
active
047919850
ABSTRACT:
The present invention relates to an improved system and method for recovering oil. The system includes a subsoil pump for pumping oil to the surface having an opening in its casing through which an assisting, treatment, or maintenance fluid may be added in a desired quantity. The opening is located substantially at the level of the pump's oil inlet and communicates with a supply of fluid via a passageway having a check valve for admitting only precise quantities of fluid to the opening.
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Dang Hoang C.
Lagoven S.A.
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