FIELD: oil and gas extracting industry.
SUBSTANCE: device has hollow body with radial channels, compacting member, pusher bushing, slips and electrical drive with screw-nut screw pair connected to pusher bushing by a finger placed in nut groove. Compacting element is made in form of sectors, half of which is in jointed connection to hollow body and an arm with spring-loaded bushing, and second half of sectors is located below the first with means for covering packed space, and is in jointed connection to pusher bushing and to arm with spring-loaded drive nut. Electric drive is located under packing element, and slips are mounted on sectors of compacting elements.
EFFECT: lesser packer dimensions while keeping reliable reusable covering of well shaft by packing elements and also more means are available for using research equipment.
2 cl, 1 dwg
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