Top Drive

Top drive drilling equipment allows drilling with triple stands and reduces make-up and break-out time. It stands for the most advanced manufacturing technology of petroleum drilling machinery and special mechanic-electronic-hydraulic petroleum machinery. It is one of the important measures to speed up petroleum and natural gas exploration, increase recovery ratio and reduce drilling cost.

It adopts the advanced and mature AC frequency-variable driving technology and has such advantages as accurate torque and speed control. The driving mode of the electric system is flexible and on the drilling platform the driller can directly select the electromechanical running mode (without the necessity to modify the user program or system parameter). Top Drive

FEATURES

  • It can drill 28m long once. When touching resistance and touching sticking, it may connect the drilling pipe immediately, rotating and circulating. 
  • It can implement back redressing and snubbing redressing.
    The drilling tool can work in a wide range and it is helpful to reduce drill sticking accidents.
  • Since it has remotely-controlled internal blowout control mechanism, the well control is safe.
  • It can work continuously in a locked running mode at rated torque.
  • The single and double-motor running modes can be changed over to each other easily;
  • The technical parameters are set reasonable and its automation degree is high and the programs run reliable. 
  • Both 50Hz and 60Hz are available.

 

 

 

 

Technical Specifications
Model DQ40BCQ DQ50BC DQ70BSE DQ70BSC DQ70BSD DQ90BSC
Drive Mode A/C VFD
Drilling Depth by 4 1/2" DP(mm) 4000 5000 7000 7000 7000 9000
Rated Load (ton) 250 350 500 500 500 750
Main Motor Rated Power (HP) 400 500 400x2 400x2 500x2 500x2
Rotating Speed (rpm) 0~200 0~180 0~200 0~220 0~200 0~200
Max. Break-out Torque (kN·m) 45 60 75 75 90 110
Drill Pipe Sizes Range(inch) 2 7/8 ~ 5 1/2 2 7/8 ~ 6 5/8 2 7/8 ~ 6 5/8 2 7/8 ~ 6 5/8 2 7/8 ~ 6 5/8 2 7/8 ~ 6 5/8
W.P. of Hydraulic System(MPa) 16 16 16 16 16 16

Mud Circulating Diameter(inch)

3 3 3 3 3 3 1/2
Rated W.P. of Central Tube (MPa) 35 35 35 35 52 52

Main Body Working Height(mm)

5300 5900 6100 6100 6400 6500

Main Body Width(mm)

1196 1537 1594 1663 1778 1778
Distance of Guide Rail to Well Center(mm) Vertical: 525
Horizontal: 346
Vertical: 700
Horizontal: 467
930 930 930 960