Adopting advanced full numerical AC VFD technology, intellectual drilling control is accomplished through PLC, touch screen and integrated design of air, electric, hydraulic parts and drilling instrumentation.
Large power and wide frequency motors are used for complete range speed setting of drawworks, rotary table and mud pumps.
Single shaft, gear drive and one or two shift smooth speed change drawworks is simple in structure and reliable in operation. Compound hydraulic disc brake and dynamic braking are used for braking system.
Automatic drilling is obtained by drawworks main motor or an independent motor real time supervision and control for tripping in, tripping out and drilling operation are obtained.
Protective functions to air or hydraulic loss, electric control system or motor trouble, limit for rotary torque and pump pressure is available.
A separate driller cabin is fitted. Operations for air, electric and hydraulic, drilling data and parameters are all in the cabin. Logic control, supervision and maintenance during complete drilling operations are available by PLC processes. The drilling data can be stored, printed and remote transmitted. All operations by driller can be completed in the cabin for better working conditions and less working strength.
Top drive drilling system can be equipped.
Integrated skid rail may be provided to meet requirements for cluster well drilling.
Intellectual soft starting device, ET200 or ASI module is used for protection and supervision to MCC system.
Intellectual position control for traveling block to prevent top and low collision is provided. |
Product types and specifications：
Drilling rig model |
ZJ15/900DB |
ZJ30/1700DB |
ZJ40/2250DB |
ZJ50/3150DB |
|
Nominal
drilling depth,
m |
127mm(5")
drill pipe |
700-1400 |
1500-2500 |
2000-3200 |
2800-4500 |
|
114mm(4 1/2")
drill pipe |
800-1500 |
1600-3000 |
2500-4000 |
3500-5000 |
|
Max. hook load, kN |
900 |
1700 |
2250 |
3150 |
|
Line strung of
hoisting system |
8 |
10 |
10 |
12 |
|
Drill line diameter，mm |
26 |
29 |
32 |
35 |
|
Max. pull of fast line，kN |
130 |
210 |
280 |
350 |
|
Draw-
works |
Model |
JC-15DB |
JC-30DB |
JC-40DB |
JC-50DB |
|
Power rating
kW (HP) |
300(410) |
600(815) |
800(1090) |
1100(1500) |
|
Speed |
I or II, smooth change |
I or IV, smooth change |
I or II, smooth change |
|
Brake mode |
Hydraulic disc brake + Regenerating brake |
Hydraulic disc brake + Regenerating brake（Pneumatic disc brake） |
|
Crown block |
TC90 |
TC170 |
TC225 |
TC315 |
|
Traveling block |
YG135 |
YG170 |
YC225 |
YC315 |
|
Sheave OD of hoisting system, mm |
660 |
1005 |
1120 |
1270 |
|
Hook |
YG135 |
YG170 |
DG225 or DG250 |
DG315 |
|
Swivel |
Model |
SL-135 |
SL-170 |
SL-225 |
SL-450 |
|
Stem dia.,mm |
64 |
64 |
75 |
75 |
|
Rotary
table |
Stem dia，
mm(in) |
444.5(17 1/2) |
520(20 1/2) |
698.5(27 1/2) |
952.5(37 1/2) |
|
Speed |
I or II, smooth change |
|
Drive mode |
combined or independent drive |
Independent drive |
|
Mast |
Type |
K or telescoping |
K or A |
K |
|
Height, m |
31 or 39 |
33 or 41 |
44 |
45 |
|
Max. load, kN |
900 |
1700 |
2250 |
3150 |
|
Substr-ucture |
Type |
Box or telescoping |
Dual lift |
|
|
Floor height, m |
3.8 |
4.5 |
5 |
6 |
7.5 |
9 |
|
Clear height, m |
2.6 |
3.3 |
3.8 |
4.8 |
6 |
7.6 |
|
Mud
pump |
Model×number |
F-800×1 |
F-1300×1 |
F-1300×2 |
F-1600×2 |
|
Drive mode |
Electric drive or diesel engine drive |
Electric drive |
|
Electric control mode |
AC-DC-AC |
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