The SOKOL Drilling motors and tools Hydraulic Double Acting Jar is hydraulically controlled and works in both directions, with impact force controlled by the operator. The jar does not incorporate a mechanical section. Up jarring force is controlled by the amount of the drill string tension during the hydraulic delay, and down jarring force — by the slack of weight during the hydraulic delay.
The SOKOL Hydraulic Double Acting Jar is operated by a simple up and down motion and is unaffected by right- or left-hand torque. Standard seals are suitable for use up to 120°C. Optional high temperature seal kits are available suitable for service up to 200°C. External sealing surfaces are tungsten carbide-coated to enhance wear and corrosion resistance.
|Size||86mm (3 3/8”)||108mm (4 ¼”)||121mm (4 ¾”)||172mm (6 ¾”)||203mm (8")|
|Max OD, mm||86||110||124||176||207|
|Length, mm||5 400||6 400||5 800||5 900||6 400|
|Pump open area, cm2||38||57||76||153||198|
|Min thru bore, mm||38||50||57||70||70|
|Max pull during delay, kgf||22 600||31 700||38 500||86 100||108 800|
|Tensile yield, kgf||63 900||81 900||100 900||325 300||352 100|
|Torsional limit, kgf*m||600||1 000||1 400||3 900||6 200|
|Tool joint (may be customized)||NC 26||NC 31||NC 38||NC 50||6 5/8 Reg|