HYDRAULIC CONTROL PENETRATOR Russian patent published in 2020 - IPC E21B33/38 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to underwater production and can be used for connection of hydraulic and electric lines between underwater horizontal type X-mas tree and suspension of tubing string. Disclosed is a hydraulic control penetrator for connection of hydraulic and electric lines between a unit of underwater X-mas tree and a suspension of a tubing string, containing housing accommodating piston arranged to displace in axial direction inside housing between piston disconnected position and connected piston position. At that, the piston contains the first section of the piston, including electric and hydraulic connectors arranged at one of its ends, made so that when the piston is in the connected position to provide connection of hydraulic and electric lines, piston second section and third piston section, balls arranged in cavities made between first and second piston sections and second and third piston sections. In each of the first and third sections of the piston there are two diametrically opposite support lugs, and in second section of piston there are four support lugs, two on each side. At that, holes are made inside the balls, through which pins are held in the bearing lugs of the piston sections. Besides, penetrator is equipped with emergency detachment mechanism, and the piston is configured to move hydraulically by means of a hydraulic drive arranged around the piston end section in the hydraulic drive housing.

EFFECT: invention allows to level angular deviations of the piston of the device, as well as emergency disconnection in case of failure in operation of standard mechanism of piston movement.

3 cl, 2 dwg