FIELD: oil and gas industry.
SUBSTANCE: container includes a cylindrical housing with perforations, which is provided with an upper cover plate with a hole, a lower cover plate and filled with a powder-like reagent below the level of perforations with formation of a free cavity. Perforations are located in circumferential rows distributed throughout length of the housing. Perforations in all rows except for the closest row to the upper cover plate are covered with soluble plugs.
EFFECT: improving uniform reagent dosing.
3 dwg
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