DEVICE FOR FIXATION OF CABLE TO FLOW STRING Russian patent published in 2010 - IPC E21B17/00 

FIELD: mining.

SUBSTANCE: invention may be used to fix power supply cable of submersible electric pumps on lifting pipes (LP) in process of pump oil production and protection of specified cable from mechanical actions in process of flow string lifting and lowering into well. Device for fixation of cable to flow string comprises body with longitudinal slot for cable installation. Body has groove for installation onto coupling of lifting pipe (LP) and is equipped at least in upper part with clamp bracket fixed by one side via hinged joint to body. Clamp bracket may rotate in hinged joint relative to body. Other side of clamp bracket is hingedly connected to traction rod, with the possibility of traction rod rotation in hinged joint relative to bracket. Body has recess for location of traction rod in device position assembled on flow string, besides recess is arranged with formation of at least one ledge on body for recess bottom. Device comprises wedge, at the same time traction rod in side remote from connection by hinged joint with bracket and body in point near recess for traction rod location have at least one support each for interaction with wedge surface. Wedge may move longitudinally relative to body and traction rod supports as wedge surface interacts with traction rod and body supports, causing forced rotation of clamp bracket in hinged joint relative to body, as device is pressed to flow string.

EFFECT: increased service life of cable fixation device with increased repetition of its application, increased reliability of device operation, simplified assembly and disassembly of device onto flow string.

16 cl, 13 dwg