Rig Model | ZJ20DBS | ZJ40DBS | ZJ50DBS | ZJ70DBS | ||
Nominal drilling depth, 127mm(5)DP, m | 2000 | 3000 | 4000 | 5000 | 7000 | |
Max. hook load, kN(t) | 1350(135) | 1700(170) | 2250(225) | 3150(315) | 4500(450) | |
Drill line number | 8 | 10 | 10 | 12 | 12 | |
Dia. of wireline, mm | 29 | 29 | 32 | 35 | 38 | |
Max. pull of fastline, kN | 200 | 200 | 275 | 350 | 487 | |
Drawworks | Model | JC-20DB | JC-30DB | JC-40DB | JC-50DB | JC-70DB |
Rated power, kW(hP) | 400(500) | 450(600) | 900(1200) | 1200(1600) | 1940(2600) | |
Gears | one gear, stepless speed regulating | |||||
Brake | hydraulic disk brake + dynamic brake | |||||
EATON brake + dynamic brake | ||||||
Crown block | TC135 | TC170 | TC225 | TC315 | TC450 | |
Traveling block | YG135 | YC170 | YC225 | YC315 | YC450 | |
OD of sheaves of hoisting system, mm | 1005 | 1120 | 1270 | 1524 | ||
Hook | YG135 | YG170 | DG225 or DG250 | DG315 | DG450 | |
Swivel | Model | SL-135 | SL-170 | SL-225 | SL-450 | SL-450 |
Dia. of stem bore | 75 | 75 | 75 | 75 | 75 | |
Rotary table | Opening dia. mm(in) | 444.5(17 1/2) | 520(20 1/2) | 698.5(27 1/2) | 952.5(37 1/2) | 952.5(37 1/2) |
Gears | one gear, stepless speed regulating | |||||
Drive mode | independent motor drive | |||||
(mast) | Type | K or telescoping | K or A | K | K | K |
Height, m | 31 or 39 | 41 | 43 | 45 | 45 | |
Max. load, kN(lbs) | 900 | 1700 | 2250 | 3150 | 4500 | |
Substructure | Type | box on box, or telescoping | dual-lifting | dual-lifting or swing up | ||
Drillfloor height | 3.8 or 4.5 | 5 or 5.5 | 7.5 | 9 | 10.5 | |
Clearance height under rotary beam, m | 2.6 or 3.3 | 3.8 or 4.3 | 6 | 7.6 | 9 | |
Mud pump | Model×number | F800×1 | F1000×2 | F1300×2 | F-1600×2 | F-1600×3 |
Drive mode | electric drive | electric drive | ||||
Electric control mode | AC-DC-ACone to one |