FIELD: oil production industry, particularly for pulling and running the oil-well tubing.
SUBSTANCE: device comprises docking mechanism made as double-stage coupling sleeve with opened longitudinal mouth for oil-well tubing receiving. Lower coupling sleeve stage may be seated on end of oil-well tubing coupling member and is mated with outer diameter thereof. Upper stage is formed as a funnel with diameter of lesser base defined between coupling sleeve stages corresponding to outer oil-well tubing diameter. Lower stage of docking mechanism is mated with the outer diameter of coupling member along line enclosing more than half of coupling member perimeter.
EFFECT: increased yield, improved safety and increased service life of oil-well tubing threads.
3 dwg
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