Beijing Ocean Renda Petroleum Equipment Co., Ltd.
Beijing Ocean Renda Petroleum Equipment Co., Ltd.
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ZJ70/4500LDB , High Efficiency Electrical Onshore Oil Drilling Rig
Description:
• The main rig power system are diesel engine driven AC generators with enough power for operating the rig.
• The power drive system available in SCR (AC-SCR-DC) or VFD (Variable Frequency Drive, AC-DC-AC) System.
• The drawworks electrically driven by heavy duty DC or AC motors, with working speed continuously adjustable. Disc brake introduced as the main drum brake equipped with the drawworks unit.
• The mud pumps equipped with the rig are single action, triplex slurry pumps, electrically driven by AC or DC motors.
• Rotary table independently driven by a drive system consisting of truck motor.
• Air system equipped with the rig, consisting of two each screw rod type air compressor, air tanks and valves.
Specifications :
Main technical parameters |
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1 | Nominal drilling depth | 7000m ( 114mmDP ) | 9 | Quantity and power of drilling pump | ||
6000m ( 127mmDP ) | 10 | Substructure type | ||||
2 | Max hook load | 4500kN | 11 | Substructure height and clear height under RT beam | ||
3 | Wire rope system of traveling system | 6 × 7 , parallel | 12 | Mast type and effective height | ||
4 | DW rated power | 1470 kW ( 2000hp ) | 13 | Transmission mode | ||
5 | DW gear | 4 gears | 6 gears | 14 | Quantity/power of main diesel engine | |
4 forward+ 2 reverse | 6 forward+ 2 reverse | 15 | Quantity/power of auxiliary generator set | |||
6 | Diameter of drilling wire rope | φ 38mm | 16 | Quantity and power of VF motor | ||
7 | RT opening diameter | 950mm ( 37 1/2″ ) | 17 | HP mud manifold | ||
