OIL WELL DEEP PUMP EQUIPMENT OPERATION METHOD Russian patent published in 2018 - IPC E21B43/00 E21B43/38 

FIELD: oil and gas industry.

SUBSTANCE: invention is intended for use in the oil industry in the operation of wells with watered formations. Method involves the use of an electric packer. Due to it, the oil and water supply to the electric centrifugal pump intake is ensured. Using the electric packer, the passage in the casing for the formation fluid is opened and closed. With the closed electric packer, the intake of the pump is provided by the receipt of low-watered oil from the tubing-casing annulus. At the same time, the sub-packer liquid separation into oil and water is provided. During opening the electric packer to receive the pump and into the tubing-casing annulus, providing oil and then water supply. Additional equipment includes a moisture meter and a level gauge. Using them, the electric packer and the pump operation is optimized. Moisture meter is installed below the electric packer, and the level gauge is placed at the wellhead in the tubing-casing annulus. When the emulsion formation fluid enters the moisture meter zone, the electric packer is closed. Oil flow from the tubing-casing annulus is provided to the pump intake. Based on the level gauge readings, the dynamic level of the liquid is determined in the set values by opening and closing the electric packer.

EFFECT: technical result is an increase in the wells operation efficiency by ensuring the possibility of a constant operating mode of their operating at the highest possible productivity.

1 cl, 1 dwg