METHOD OF PULSING WELL OPERATION AND DEVICE FOR IMPLEMENTATION OF METHOD Russian patent published in 2018 - IPC E21B43/00 F04D13/10 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to the oil industry and can be used for extraction from the wells of a liquid with increased gas content by pumping with blade pumps. Method of pulsating operation of a well with a vane pump includes a periodic repetition of the cycles of pumping liquid into the lifting pipe string and accompanied by the turbine rotation of the working wheels of the pump draining liquid from the column through the pump into the well when the pump is disrupted. Turbine rotation of the working wheels of the pump is carried out without changing the direction of rotation of the wheels. As the pump is filled with liquid drained from the column through the pump, pump self-pickup is performed. After this, they proceed to the next cycle of fluid supply by the pump, then the cycles are repeated, alternating the pump with the pump from the well and filling the pump in the process of draining liquid from the column while simultaneously filling the well with liquid with an ongoing inflow from the reservoir. Thus, an autonomous pulsating mode of operation of the "formation-well-pump" system.

EFFECT: inventions are aimed at overcoming the negative effect of reverse turbine rotation of the pump working wheels during the drainage of liquid from the riser pipe through the pump in the well for the stability of the vane pump, including in conditions of increased gas content at the pump intake.

3 cl, 1 dwg