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Drilling equipment

Spiral grooved drill collar balanced (УБТС-С)

Труба бурильная утяжеленная сбалансированная со спиральными канавками

is used in drilling deep wells to decrease a possibility of seizing the tool in view of reducing the area of contact of the drill collar string with the well walls.

Drill collars are manufactured from alloy steels heat-treated over the full length according to ТУ 3663-033-48416997-2005 г

Length, mm 6000…9450

Technical descriptions
Designation of drill collar	Tool-joint thread	Outer diameter	Bore diameter
УБТС-С-108	З — 86	108	46, 50, 56
УБТС-С-121	З — 102	121	50, 56
УБТС-С-146	З — 121 З — 122	146	56, 70
УБТС-С-165	З — 121 З — 122 З — 133	165	56, 70
УБТС-С-178	З — 133 З — 147	178	70, 80, 90
УБТС-С-203	З — 147 З — 171	203	80, 90, 100
УБТС-С-229	З — 171 З — 163	229	90, 100

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