Specifications
API 7-1 ZJQ Type Drilling AcceleratorAPI Connection
Size 4 3/4" ~ 9 1/2"
API 7-1 ZJQ Type Drilling Accelerator
The drilling accelerator type ZJQ is run in conjunction with a hydraulic drilling jar of the same size, and is manufactured from high strength alloy steel. The tool can not only strengthen the jarring force, but also can absorb much of the jarring shock from the rebounding string to protect tools and strings from damage.
Specification Series and Performance Parameters
Type | O.D. mm (in) | Hole Diameter (in) | Connection API | Max. Working Stroke mm (in) | Seal Pressure Mpa | Max. Working Load KN | Max. Working Torque KN.M | Overall Length mm (in) |
ZJQ 46 | 121 (4 3/4) | 50 (2) | NC38 | 350 (13.78) | 30 | 350 (78750) | 8 (5900) | 7430 (292.5) |
ZJQ 62 | 159 (6 1/4) | 57 (2 1/4) | NC50 | 350 (13.78) | 30 | 700 (157500) | 13 (9600) | 7780 (306.3) |
ZJQ 64 | 165 (6 1/2) | 57 (2 1/4) | NC50 | 350 (13.78) | 30 | 750 (168750) | 14 (10400) | 7780 (306.3) |
ZJQ 76 | 197 (7 3/4) | 61.9 (2 2/5) | 6 5/8REG | 350 (13.78) | 30 | 1000 (225000) | 18 (13300) | 7630 (300.4) |
ZJQ 80 | 203 (8) | 76.2 (3) | 6 5/8REG | 350 (13.78) | 30 | 1000 (225000) | 18 (13300) | 7752 (305.2) |
ZJQ 95 | 241 (9 1/2) | 76 (3) | 7 5/8REG | 350 (13.78) | 30 | 1200 (270000) | 22 (16300) | 6752 (265.8) |
