ZJ90DB 9000m VFD Drilling Rig
ZJ90DB rig123.net' target='_blank'>Drilling rig123.net' target='_blank'>Rig
Features:
n The drawworks is driven by two AC motors with 1+1R/2+2R step-less speed, and reversal will be realized by AC motor reversal
n The mud pump is driven by AC motors, which are mounted on the rear skid of mud pump, with V-belt transmission and simple structure
n The independent driven rotary table runs with 1+1R/2+2R step-less speed and reversal will be realized by AC motor reversal
n Using AC-DC-AC drive technology, rotary table and drawworks are four quadrant running and full digital vector control.
n Single drum, gear driven and one/two shifts smooth speed change drawworks is simple in structure and reliable in operation.
n Feed back/Dynamic brake is adopted to replace eddy current brake as auxiliary brake.
n Automatic drilling is obtained by drawworks main motor or an independent motor. Intellectual position control for traveling block prevent crown block and rotary table from collision.
n Real time communication and network is available by using PROFIBUS technology
n K type mast is suitable for install top drive system
n Sling shot or swing up substructure and mast are used so that all the equipment can be installed at lower position
Specification:
Model |
Unit |
ZJ90/6750 DB |
Nominal drilling depth(4-1/4” DP) |
m |
9000 |
ft |
30000 |
|
Max. hook load |
kn |
6750 |
lbs |
1500000 |
|
Traveling system |
|
7x8 |
Wire line dia. |
mm |
45 |
In |
1-3/4 |
|
Rated power of drawworks |
kw |
2200 |
hp |
3000 |
|
Drawworks speed |
|
I or II, smooth change |
Braking type |
|
Hyd. Disc brake + regeneration brake |
Crown block |
type |
TC675 |
Traveling block |
type |
YC675 |
OD of block sheaves |
mm |
1524 |
Swlive |
type |
SL675 |
Rotary table opening |
mm |
950 |
in |
37.5 |
|
Mast type and height (K type) |
m |
48 |
ft |
157 |
|
Substructure type and height (Swing lift) |
m |
12 |
ft |
40 |
|
Clear height under rotary beam |
m |
10 |
ft |
33 |
|
Mud pump number and power |
kw |
2 x 1176 |
hp |
2 x 1600 |
|
Max. pump pressure |
mpa |
35~52 |
psi |
5000~7500 |
|
Power drive mode |
|
AC-DC-AC |
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