FIELD: oil and gas industry.
SUBSTANCE: invention refers to oil industry and can be implemented at operation of oil wells, where depth electric centrifugal pumps are used as cable inlet of high pressure. To achieve the said, the cable inlet is equipped with two sealing packages. One of the packages consists of a complex back-up plate, of a solid cone seal and of a complex packing washer. The second sealing package consists of a complex back-up plate, of a solid cylinder seal and of a complex packing washer. The cable entry with double sealing package is equipped with two bearings installed on each sealing package. A case is equipped with two channels for pressurisation of the cable inlet with double sealing package; the channels are located between sealing packages and are equipped with two plugs installed in these channels.
EFFECT: facilitating control over pressure tightness of cable inlet during operation, simplified installation of cable inlet, also possibility to use cable inlet for existing well stock.
5 dwg
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