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compound drilling rig
compound drilling rig

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 modelZJ30/1700 LDBZJ40/2250 LDBZJ50/3150 LDBZJ70/4500LDB
Nominal drilling depth, m114mm(4½") drill pipe1500-25002500-40003500-50004500-7000
127mm(5") drill pipe1600-30002000-32002800-45004000-6000
Max. hook load, kN(in)1700225031504500
Hook speed, m/s0.22-1.630.21-1.350.21-1.390.21-1.36/0.25-1.91
Line strung of hoisting system10101212
Drill line diameter, mm29323538
Max. pull of fast line, kN210280350485
Power rating, kW(HP)40073511001470
Main brakeHydraulic disc brake
Auxiliary brakeHydraulic disc brake
Crown blockTC170TC225TC315TC450
Traveling blockYC170/YG170YC225YC315YC450
Sheave OK of hoisting system, mm(in)1005112012701524
Stem diameter, mm64757575
Rotary tableTable opening, mm(in)520.7698.5698.5952.5
SpeedI, smooth changeI or II, smooth change
Drive modeVFD motorVFD/ DC motor
Height, m42434545
Max. load, kN1700225031504500
SubstructureTypeBoxFront level, swing lift; rear level, box
Floor height, mFront 6, rear 0.8Front 9, rear 0.8Front 9, rear 0.8Front 10.5, rear 0.8
 Clear height, m2. or 8.9
Mud pumpModel×numberF-1000×1F-1300×2F-1300×2F-1600×2
Drive modeCompound drive
Electric drive mode of rotary table, kWAC-DC-AC or AC –SCR-DC, one for one control

compound drilling rig

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