Compound Drive Drilling Rig Compound Drive Drilling Rig Achieving sound operation performance by economical power configuration, the compound drive drilling rig meets the requirement of modern drilling technology by overcoming high cost of electric drive, long route of mechanical drive and high-floor rotary table climbing drive during mechanical drive, thereby being highly competitive in the market.The main models are as follows: ZJ30LDB, ZJ40LDB, ZJ50LDB and ZJ70LDB drilling rig etc. Technical characteristics.The drawworks and mud pumps are driven by "diesel engine+ torque converter or coupling transmission +chain compound" while rotary table is driven by AC VFD motor or DC motor to obtain smooth speed change and torque limit for better drilling performance;.Rig floor is in two levels. Power and transmission system are installed on the rear low level.Drawworks is inner speed change. Speed shift adjustment and change is easily available by remote pneumatic control;.Main brake is hydraulic disk and auxiliary brake is electric magnetic eddy brake;.Box of front level with swing lift and rear level with box type substructure is available;.Ample space on rig floor is available for convenient operation.Module design is provided for reasonable arrangement, power compensation and high use ratio;.Compound can be used to drive the energy saving generator and automatic air compressor;.Top drive drilling system can be equipped;.Integrated skid rail may be provided to meet requirements for cluster well drilling.Technical parameters
| Drilling rig model | ZJ30/1700 LDB | ZJ40/2250 LDB | ZJ50/3150 LDB | ZJ70/4500LDB | |
| Nominal drilling depth, m | 114mm(4½") drill pipe | 1500-2500 | 2500-4000 | 3500-5000 | 4500-7000 |
| 127mm(5") drill pipe | 1600-3000 | 2000-3200 | 2800-4500 | 4000-6000 | |
| Max. hook load, kN(in) | 1700 | 2250 | 3150 | 4500 | |
| Hook speed, m/s | 0.22-1.63 | 0.21-1.35 | 0.21-1.39 | 0.21-1.36/0.25-1.91 | |
| Line strung of hoisting system | 10 | 10 | 12 | 12 | |
| Drill line diameter, mm | 29 | 32 | 35 | 38 | |
| Max. pull of fast line, kN | 210 | 280 | 350 | 485 | |
| Drawworks | Model | JC30B | JC40B | JC50B | JC70B |
| Power rating, kW(HP) | 400 | 735 | 1100 | 1470 | |
| Speed | 4F | 6F+1R | 4F+2R | 6F(4F)+2R | |
| Main brake | Hydraulic disc brake | ||||
| Auxiliary brake | Hydraulic disc brake | ||||
| Crown block | TC170 | TC225 | TC315 | TC450 | |
| Traveling block | YC170/YG170 | YC225 | YC315 | YC450 | |
| Sheave OK of hoisting system, mm(in) | 1005 | 1120 | 1270 | 1524 | |
| Hook | DG225/YG170 | DG225 | DG315 | DG450 | |
| Swivel | Model | SL170 | SL225 | SL450 | SL450 |
| Stem diameter, mm | 64 | 75 | 75 | 75 | |
| Rotary table | Table opening, mm(in) | 520.7 | 698.5 | 698.5 | 952.5 |
| Speed | I, smooth change | I or II, smooth change | |||
| Drive mode | VFD motor | VFD/ DC motor | |||
| Mast | Type | K | |||
| Height, m | 42 | 43 | 45 | 45 | |
| Max. load, kN | 1700 | 2250 | 3150 | 4500 | |
| Substructure | Type | Box | Front level, swing lift; rear level, box | ||
| Floor height, m | Front 6, rear 0.8 | Front 9, rear 0.8 | Front 9, rear 0.8 | Front 10.5, rear 0.8 | |
| Clear height, m | 2.9 | 4.8 | 7.4 | 7.4 or 8.9 | |
| Mud pump | Model×number | F-1000×1 | F-1300×2 | F-1300×2 | F-1600×2 |
| Drive mode | Compound drive | ||||
| Electric drive mode of rotary table, kW | AC-DC-AC or AC –SCR-DC, one for one control | ||||
compound drilling rig
