TEST BENCH FOR FILTERS OF DOWNHOLE PUMPING UNITS Russian patent published in 2019 - IPC E21B43/08 G01M99/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry and can be used for testing filters of well pumping units operated in conditions complicated by high content of abrasive particles in formation products. Test bench comprises a vertical casing string, inside which there is a test filter with a safety valve, pipelines with gates, pump, pressure gauge installed on pump discharge pipeline, mechanical impurities dispenser and sludge collector. Filter is directly connected to the suction pipeline of the pump equipped with a volumetric flow meter. Casing string is filled with a modeling fluid and is connected to a supercharger designed to create excess pressure. Forklift is equipped with a pressure gauge, a check valve and a safety valve with adjustable tightening of the spring. Sludge container is connected to casing via pipeline with gate.

EFFECT: enlarging functional capabilities, simulation of well operating conditions of filters, higher reliability of determination of hydraulic characteristics.

1 cl, 2 dwg