Tubes of TVM
Tubes of TVM
Internal mechanical freeing pipe catchers - TVM, TVM1 are intended for gripping by the inner surface and subsequent extraction of tubular elements of drill, casing and tubing strings during fishing operations in oil, gas and exploration wells.

Spearheads of TVN (TV), TVM, TVO, TNZ types are intended for capture and subsequent extraction from wells, during fishing operations, tubing, drill pipes and casing pipes. By the nature of the capture of pipes, the spears are divided into two groups: internal (for gripping by the inner surface) and external (for gripping by the outer
pipe or coupling surface). Internal spears are subdivided into non-releasing and non-releasing.

The capture is carried out by wedging the retractable dies between the inner or outer surface of the captured pipe and the rod or body of the spear.

With the help of spearheads, the pipe strings can be removed as a whole or in parts, having previously unscrewed.

Technical characteristics
Type Сonnecting thread (GOST 28487) Outer diameter Length
TVM-60 3-76 95 900
TVM-73 3-76 95 1190
TVM-89 3-76 110 1300
TVM-114 3-88 140 1430
TVM-127 3-88 150 1580
TVM-146 3-88 175 1600
TVM1-146 3-101 145 1637
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