GROUND DEVICE FOR FEEDING LIQUID SYSTEMS, PRIMARILY PARAFFIN DEPOSIT INHIBITOR INTO OIL PRODUCING WELL Russian patent published in 2016 - IPC C02F1/48 

FIELD: oil industry.

SUBSTANCE: invention relates to oil production, in particular to devices for feeding liquid systems into a well. Ground device into oil producing well liquid systems, primarily paraffin deposit inhibitor, includes vessel 1, pipeline 2 for supply of inhibitor into well 9 and magnetic flow-type unit 3. Magnetic unit consists of coaxially arranged on pipeline and close to it ferromagnetic pipe 4, on top of which and with a gap of 100-300 mm from each other there are two permanent ring magnets 5, providing in said gap an axial component of magnetic field intensity with gradient from 1,000 to 2,000 Oe, and at weight ratio thereof of 1:(1.5-2.5) respectively, wherein outer poles of ring magnets are shunted. Pipeline is additionally equipped with ferromagnetic rings 7, installed at each end of magnetic unit tightly to ring magnets and rigidly connected with ferromagnetic screen 8, covering magnetic unit, wherein at least one ferromagnetic ring of pipeline is rigidly connected to vessel. One of ring magnets of ground device is composed of multiple ring magnets, installed tightly to each other. Device comprises at least two magnetic units.

EFFECT: technical result is improvement of properties of pumped paraffin deposit inhibitors of various classes with various physical and chemical properties at different flow speeds thereof via said pipeline, even under conditions of fluctuation of flow speed.

3 cl, 2 dwg, 1 tbl