PROPORTIONING DEVICE Russian patent published in 2005 - IPC

FIELD: oil and gas production, particularly devices for dosing and supplying viscous chemical agents into oil- or gas pipeline or into well.

SUBSTANCE: device has vessel with chemical agent pipeline connected with oil pipeline, hydraulic resistance assembly made as connection pipe with porous medium installed in chemical agent pipeline. Porous medium is arranged in chamber defined by inner connection pipe surface and by discs having orifices put on hollow tube inside the connection pipe and forming inner and outer cavities in the connection pipe. Chemical reagent pipeline communicates with inlet cavity of the connection pipe. Hollow pipe communicates with outlet cavity by opened end thereof. One disc is installed on hollow tube so that disc may be displaced and fixed on the tube. Hollow tube is connected with oil pipeline.

EFFECT: improved operational conditions, increased ability of controllable chemical reagent supplying and reduced supplying time.

6 cl, 2 dwg