String Reciprocators

String reciprocator is own original «BURINTEKH», Ltd development protected by patent.

String reciprocator RKM is designed for releasing a stuck downhole tool or equipment by up-and-down impacts with static axial load (tension) and torque.

Main advantages are:

  • increase of effectiveness of stuck tool releasing in lateral or horizontal section due to working together with axial or torsional jar of YAGR(B) series;
  • minimum influence on a drilling process;
  • ability of installing in tensile or compressed string section, moreover on inclined or horizontal well interval;
  • smooth, because of design features, passing through milled casing window while lateral well drilling;
  • absence of severe restrictions on depth and temperature.

Tool series

Outside diameter, mm

Drift diameter, mm

Length in fold position/with pulled out spindle, mm

Connection threads GOST 28487-90

Weight, kg

RKM-108

108…110

50.8

1,995/2,097

Z-86

49

RKM-172

172…176

73

2,200/2,420

Z-133

270