Integral Mechanical Drilling Jar Type JSZ
Model “JSZ” Drilling Jar can be actuated by mechanical fully. The inner chamber cannot roduce high-pressure. The change of oiliness cannot impact jarring effect.The short overall length can reduce the harm of bending alternating stress, facilitating the conveyance. It has the low sealing property and reliable using property.It should be used for offshore drilling and directional drilling.
Specifications
| Model | O.D. mm
(in) |
I.D. mm
(in) |
Connection | Max. Upward Jarring Force
kN(lbf) |
Max. Downward Jarring Force kN(lbf) | Max. working Load kN(lbf) | Yield PullkN(lbf) | Max.Working Torque kN.m(lbf.ft) | Yield TorquekN.m(lbf.ft) | Length mm
(in) |
| JSZ46 | 124(4-7/8) | 50.8 (2) | NC38 | 400(90000) | 250(56000) | 1100(247000) | 1600(360000) | 15(11000) | 27(20000) | 3646(143-1/2) |
| JSZ62 | 162(6-3/8) | 57.2(2-1/4) | NC46 | 600(135000) | 360(80000) | 1600(360000) | 2700(600000) | 25(18000) | 65(48000) | 4150(163-3/8) |
| JSZ70 | 178(7) | 57.2(2-1/4) | NC50 | 700(160000) | 400(90000) | 2400(540000) | 3400(760000) | 30(22000) | 80(59000) | 4150(163-3/8) |
| JSZ80 | 203(8) | 76.2(3) | 6 5/8REG | 820(185000) | 460(100000) | 2800(630000) | 5200(1170000) | 35(25800) | 145(100000) | 4200(165-3/8) |