METHOD OF SEALED CABLE ENTRY AND FIXATION AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2025 - IPC E21B33/03 

FIELD: mining.

SUBSTANCE: invention relates to wellhead equipment for operation of wells using electric submersible pumps. In particular, disclosed is a method for tight entry and fixation of a cable at the wellhead, in which a load-carrying cable is pulled through an intra-axial channel of a sealed cable entry and fixation device, comprising a housing with two sets of collars arranged between pairs of supports connected by a pair of locks, which symmetrically to the contact line of the cuffs from below and from above are supported by means of supports on the pistons of the spring-return mechanisms, connected by their cups to the body by means of a thread, lowering of submersible equipment to the well on the load-carrying cable to the place of the pump installation, attachment of the device for tight entry and fixation of the cable on the wellhead fittings with the help of a mounting flange connected from above by a thread to the piston of the lower spring-return mechanism, mechanical crimping of the load-carrying cable by screwing the upper cap of the device, squeezing the collar resting on the receiving cone of the shank connected to the piston of the upper spring-return mechanism, hydraulic crimping of load-carrying cable by means of connection of hydraulic pump to holes for crimping made in sleeves of spring-return mechanisms and shank of the device.

EFFECT: simultaneous sealing and attachment of load-carrying cable at the wellhead.

5 cl, 4 dwg