Type JSZ Integral Mechanical Drilling Jar
Description
Model “JSZ” Drilling Jar can be actuated by mechanical fully. The inner chamber cannot produce 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 API | Max. Upward Jarring Force kN(lb) | Max. Downward Jarring Force kN(lb) | Max. Working Load kN(lb) | Tensie Yield Strength kN(lb) | Max. Working Torque kN.m (ft.lbs) | Torsional Yield Torque kN.m (ft.lbs) | Length mm(in) |
JSZ46 | 124 (4-7/8) | 50.8 (2) | NC38 | 400 (90000) | 250 (56000) | 1100 (247000) | 1950 (430000) | 15 (11000) | 27 (20000) | 3646 (143.54) |
JSZ62 | 62 (6-3/8) | 57 (2 1/4) | NC46 | 600 (135000) | 360 (80000) | 1600 (360000) | 2700 (600000) | 25 (18000) | 65 (48000) | 4150 (163.4) |
JSZ70 | 178 (7) | 57 (2 1/4) | NC50 | 700 (160000) | 400 (90000) | 2400 (540000) | 4560 (10000000) | 35 (25000) | 80 (59000) | 4150 (163.38) |
JSZ80 | 203 (8) | 76.2 (3) | 6 5/8REG | 820 (185000) | 460 (100000) | 2800 (630000) | 6650 (1500000) | 45 (33000) | 145 (100000) | 4200 (165.35) |