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AC Variable-frequency electric drive Drilling Rig
AC Variable-frequency electric drive Drilling Rig

AC Variable-frequency electric drive Drilling Rig AC Variable-frequency electric drive Drilling Rig   Technical characteristics *Intelligent driller control as well as storage, printing and remote transmission of data are all realized by PLC. *Broadband high-power remote drive enables stepless speed regulation of drawwork, rotary table and mud pump in the whole course; *The combination of hydraulic disc brake and regenerating brake provides reliable performance;*Automatic bit feeding system monitors trip and drilling conditions in real time;*Intelligent traveling block prevent "Up impact and down smashing" *Requirement for position transfer among wells in cluster well drilling can be met; *Protection and monitoring on MCC system;  Technical parameters 

Drilling rig modelZJ15/900 DBZJ30/1700 DBZJ40/2250 DBZJ50/3150 DBZJ70/4500DB
Nominal drilling depth, m114mm(4½")drill pipe800-15001500-25002500-40003500-50004500-7000
127mm(5") drill pipe700-14001600-30002000-32002800-45004000-6000
Max. hook load, kN(t)9001700225031504500
Line strung of hoisting system810101212
Drill line diameter, mm2629323538
Max. pull of fast line, kN130210280350485
Power rating kW(HP)30040073511001470
SpeedGear  I or II stepless speed regulation
Brake modeHydraulic disc brake +dynamic brakingHydraulic disc brake + electromagnetic current brakeHydraulic disc brake+ Regenerating brake
Crown blockTC90TC170TC225TC315TC450
Traveling blockYG135YC170YC225YC315YC450
Sheave OD of hoisting system, mm (in)6601005112012701524
HookYG135YC170/YG170DG225 /DG250DG315DG450
Stem dia., mm6464757575
Rotary tableTable opening, mm(in)444.5520.7698.5952.5952.5
SpeedI or II ,smooth changeI ,smooth change
Drive modeCombined or independent driveIndependent drive
MastTypeK or telescopingK or AK
Height, m31 or 3933 or 41444545
Max. load, kN9001700225031504500
Sub-structureTypeBox or telescopingDual liftDual lift or swing lift
Floor height, m3.84.5567.5910.5
Clear height, m2.
Mud pumpModel×numberF-800×1F-1300×1F-1300×2F-1600×2F-1600×3
Drive modeElectric drive or diesel engine driveElectric drive
Electric control modeAC-DC-AC

AC Variable-frequency electric drive Drilling Rig

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