DOSED CHEMICAL REAGENT SUPPLY DEVICE Russian patent published in 2013 - IPC E21B37/06 

FIELD: oil and gas industry.

SUBSTANCE: device includes a chemical reagent tank with a hollow drain reagent line equipped with a connection pipe with a calibrated opening, for supply of chemical reagent to the cavity of the product line and the gas accumulation chamber for its being supplied with a gas line from the cavity of the product line to the chemical reagent tank. The gas line is equipped with a gate valve and directly connects the gas accumulation chamber to the product line equipped from the inside with an injector, and from the outside with a cylindrical casing that is interconnected through the holes in the product line with the ejector low pressure chamber; at that, cylindrical casing is interconnected at their inlet openings with the reagent line connected from below to the tank and equipped with the gate valve, into which a connection pipe is inserted.

EFFECT: increasing mixing efficiency and dosing accuracy.

1 dwg