Skid-Mounted Drilling Rigs
Description:
One-to-one control is designed for the VFD system and one-to-two control is designed for the SCR system., The intellectual control of the driller over the drilling rigs can be realized by the PLC system and the integrated design of touch screen parameters of gas, electricity, fluid, and drilling instrumentation.
The K-type mast and the swing-up/sling-shot substructure have good stability and provide a large working space. The mast and the equipment on the drill floor can be assembled on the ground and raised integrally.
The skid module structure can make the whole unit very compact and quick for movement, which can meet the requirements of the whole-unit-trucked transportation and cluster-type-well drillings.
The draw works will be driven by a single-shaft gear with a non-step speed adjustment. The transmission is simple and reliable.
The draw works is equipped with a hydraulic disc brake and motor-energy-consumption braking, and the braking torques can be controlled via the computer.
An auto bit feeder is equipped individually to realize real-time monitoring of the dropping process and drilling process of the DP.
Safety and inspection measures are strengthened under the guidance of the design concept of “Humanism Above All” to meet the requirements of HSE.
Model and parameters of Drilling
| Drilling rig model | ZJ30DB | ZJ40L/J | ZJ50L/J/LDB | ZJ70LDB/L/D | |
| m Nominal drilling depth | 114mm（4 1/2"） DP | 1600-3000 | 2500-4000 | 3500-5000 | 4500-7000 |
| 127mm（4 1/2"） DP | 1500-2500 | 2000-3200 | 2800-4500 | 4000-6000 | |
| Max. hook load, KN(t) | 1700 | 2250(225) | 3150（315） | 4500（450） | |
| 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 | |
| brake | Mode | JC30DB | JC40B/J | JC50B | JC70B/DB |
| Power rating KW(HP) | 400(600) | 735(1000) | 1100（1500） | 1470(2000) | |
| Speed | 4F | 6F+1R | 4F+2R | 6F(4F)+2R | |
| Main brake | Hydraulic disc brake | ||||
| Auxiliary brack | Eddy brake | ||||
| Crown block | TC170 | TC225 | TC315 | TC450 | |
| Traveling block | YC170 | YC225 | YC315 | YC450 | |
| Sheave OD of hoisting system, mm(in) | 1005（40） | 1120（44） | 1270（50） | 1524（60） | |
| HOOK | YG170 | DG225 | DG315 | DG450 | |
| Swivel | Mode | SL170 | SL225 | SL450 | SL450 |
| mm | 64 | 75 | 75 | 75 | |
| Stem diameter | 520.7(20 1/2) | 698.5(27 1/2) | 698.5(27 1/2) | 952.5(37 1/2) | |
| Rotary table | Table opening speed | ||||
| L | |||||
| Drive mode | VFD motor | ||||
| mast | Type | K | K | K | K |
| Height,m | 42 | 43 | 45 | 45 | |
| Max.load,KN | 1700 | 2250 | 3150 | 4500 | |
| Substructure | Type | Box | Box | Front level,swing lift;rear level,box | |
| Floor height, m | 4.5 | 6 | 7.5/9 | 10.5 | |
| Clear height, m | 2.9 | 4.8 | 5.72/7.4 | 8.9 | |
| Mud pump | Model x number | F-1300x1 | F-1300x2 | F-1300x2 | F-1600x2 |
| Drive mode | Compound drive | ||||
| Electric drive mode of rotarytabel,kw | AC-DC-AC or AC-SCR-DC,one for one control | ||||
