LOAD BEARING SLEEVE FOR SUBMERSIBLE RIG Russian patent published in 2017 - IPC E21B47/01 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil producing equipment comprising electric-centrifugal pumps lowered into the well on a carrying cable, and can be used for geophysical studies in wells and logging operations. The device comprises a body with an axial hole for passing a cable, separated into shared conductors, a housing-threaded head with an axial inlet, radial hole and cylindrical bore where the armored cable is fixed, and the current lead block connected to the conductors. The cylindrical bore of the head contains a set of chevron seals, compressed between the thrust ring and the pressure ring, separated from the housing end with the upper set of washers. along the housing periphery the longitudinal small diameter holes are made, and in its lower part a large cone bushing is located, which is inserted with small mating taper bushing. The small taper bushing is pressed by the ring and by the second set of washers installed against the shoulder of the hollow base screwed to the lower part of the housing. Between the cone sleeve the cable-separated outer sheath passes the end of which is tightly fixed between the end face of the housing and the upper set of washers, while the separated ends of the inner sheath are pressed between the ring and the second set of washers.

EFFECT: due to the invention the reliability of performance of the load-carrying sleeve of submersible rig is improved due to protection of current-carrying conductor insulation.

3 cl, 2 dwg