| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: protector for shielding power cable in well consists of seat and slot for installation of power cable, of reflectors interacting with internal channel of production string and of channel enveloping tubing string. Also in the channel of the protector for tubing string enveloping there are made circular grooves and there are installed flexible split tooth rings with differently directed pointed vertexes on external and internal surfaces. Radial threaded orifices are cut between the grooves; there are installed lock screws interacting with surface of tubing when they are screwed to fix the protector. Notably, hardness of pointed vertexes of the split rings exceeds or is equal to hardness of surface of tubing. ^ EFFECT: raised reliability of protector fixation with power cable on external surface of tubing. ^ 2 cl, 5 dwg |
