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Reverse circulation system parameters | ||||||||||||
Technical parameters | Unit | SL400 | SL500 | SL600 | SL800 | SL1200 | ||||||
Max drilling depth | M | 300 | 400 | 500 | 600 | 1000 | ||||||
Drilling diameter | mm | 105-305 | 105-400 | 105-450 | 105-550 | 105-800 | ||||||
Air pressure | Mpa | 1.2-3.5 | 1.6-6 | 1.6-6 | 1.6-8 | 1.6-8 | ||||||
Air consumption | m³/min | 16-55 | 16-55 | 16-75 | 16-96 | 16-96 | ||||||
Drill pipe length | m | 3 | 3 | 3 | 6 | 6 | ||||||
Drill pipe diameter | mm | 89/102 | 102/114 | 102/114 | 114/127 | 127/146 | ||||||
Air circulation double layer drill pipe diameter | Mm | 89/102 | 102/114 | 102/114 | 114/127 | 127/146 | ||||||
Axial pressure | T | 6 | 7 | 7 | 11 | 13 | ||||||
Lifting force | T | 22 | 25 | 29 | 47 | 57 | ||||||
Fast lifting speed | m/min | 20 | 23 | 29 | 29 | 30 | ||||||
Fast feeding speed | m/min | 32 | 33 | 28 | 42 | 44 | ||||||
Max rotary torque | Nm | 8000/4000 | 10000/5000 | 12000/6000 | 18000/9000 | 24000/12000 | ||||||
Max rotary speed | r/min | 75/150 | 75/150 | 75/150 | 70/140 | 86/172 | ||||||
Small secondary winch lifting force | T | 1.5 | 1.5 | 2.5 | 2.5 | 2.5 | ||||||
Jacks stroke | m | 1.6 | 1.6 | 1.7 | 1.7 | 1.7 | ||||||
Drilling efficiency | m/h | 10-35 | 10-35 | 10-35 | 10-35 | 10-35 | ||||||
Moving speed | Km/h | 2.5 | 2.5 | 3.5 | 5 | 6.4 | ||||||
Uphill angle | slope | 21° | 21° | 21° | 21° | 21° | ||||||
Weight of the rig | T | 11 | 12 | 12.5 | 17 | 23 | ||||||
Dimension | m | 6.2*1.85*2.8 | 7*2.1*2.8 | 7*2.1*2.8 | 10.5.*2.25*3.3 | 11.5*2.25*3.4 | ||||||
Working condition | Unconsolidated formation and stone head | |||||||||||
Drilling method | Top drive hydraulic rotary and pushing hammer or mud drilling | |||||||||||
Matched DTH hammer | Medium and high air pressure series | |||||||||||
Optional accessories | Mud pump,Centrifugal pump,Generator,foam pump |