METHOD OF LIFTING INHOMOGENEOUS MULTI-PHASE PRODUCTS FROM WELLS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC E21B43/00 F04F5/54 F04D15/00 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions relates to the field of oil and gas industry and can be used in the extraction of hydrocarbons from wells with an intensive inflow of water with sand into the well. Method of lifting heterogeneous multi-phase products from the well using the device includes pumping products from the reservoir, partial separation of the free gas from the liquid with the subsequent flow of the gas-liquid mixture with the residual gas content into the pump and its injection into the nozzle of the jet apparatus, pumping out the production of the well by the jet apparatus from the annulus and from the bottom to the tubing and lifting the product to the surface. At that pumping is periodically interrupted and the product stream is transferred to the bottom-hole direction by means of a bypass pipeline, its the lower end is located below the reservoir. Device for lifting a heterogeneous multi-phase product contains an electric pump, a gas separator, a mixing chamber of the jet apparatus and strainers. In this case, at the outlet of the mixing chamber, a check valve is installed, that serves to communicate the bypass pipeline with the mixing chamber. At that at the outlet of the well set the flow sensor, that serves to monitor changes in the magnitude of the flow rate of the well at the mouth. Flow sensor is connected to the control unit, the output of which is connected to the frequency control current of the electric drive, that serves to regulate the pump flow value.

EFFECT: improving the efficiency of lifting heterogeneous multi-phase products from the well with an intensive flow of water with sand to the bottom of the production well.

2 cl, 1 dwg