FIELD: mining.
SUBSTANCE: device comprises a tight body suspended on a geophysical cable, where a motor is installed, as well as an electromechanical packer connected to it by means of a screw gear and a controlled valve device. At the same time the device is additionally equipped with a switching unit, installed above the electric motor, an anchor installed above the electromechanical packer, two pressure compensators, one of which is installed above the anchor, and the second one is installed below a balancing valve, a tip of a cable head installed in the lower part of the device, and a remote well tool fixed to the tip of the cable head. Besides, the switching unit and the electric motor are arranged in a tight body.
EFFECT: higher reliability of tight closure of tubing string cavity and provision for possibility to efficiently monitor pressure change when operating in wells in a depression mode.
2 dwg
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