FIELD: oil and gas industry.
SUBSTANCE: assembly consists of an electrical centrifugal pump mounted on a faceplate located on a flange of a production casing, lower and upper packers mounted above lower and upper beds, two well bores in the upper packer one inside the other to form two independent channels, and a valve assembly above the upper packer provided with a control element. The valve assembly comprises two control discs on a rod, a mixing chamber in between, and a disc rotation mechanism containing springs, a slide valve and a rod. The control disks comprise circumferential throttle holes of various diameters. The control element represents a hydraulic tube connecting the valve assembly with a pump discharge head.
EFFECT: more effective operation of the assembly ensured by optimising the modes of liquid sampling and using the same control element.
2 dwg
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