Combined Driven Drilling rig
Description:
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 or 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;
combined power 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.
Description:
|
Drilling rig model |
ZJ30LDB |
ZJ40LDB |
ZJ50LDB |
ZJ70LDB |
|
|
Nominal |
4-1/2ʺ DP |
1500-2500 |
2500-4000 |
3500-5000 |
4500-7000 |
|
5ʺ DP |
1600-3000 |
2000-3200 |
2800-4500 |
4000-6000 |
|
|
Max.Static Hook Load,kN(t) |
1700（170） |
2250(225) |
3150(315) |
4500(450) |
|
|
Hook Speed,m/s |
0.22-1.63 |
0.21-1.35 |
0.21-1.39 |
0.21-1.36 0.25-1.91 |
|
|
Line strung of hoisting system |
10 |
10 |
12 |
12 |
|
|
Drilling Line diameter,mm |
29 |
32 |
35 |
38 |
|
|
Max.pull of fast line,kN |
210 |
280 |
350 |
485 |
|
|
Drawworks |
Model |
JC30B |
JC40B |
JC50B |
JC70B |
|
Power Rating kW(HP) |
400(600) |
735(1000) |
1100(1500) |
1470(2000) |
|
|
Speed |
4F |
6F+1R |
4F+2R |
6F(4F)+2R |
|
|
Auxiliary brake |
Eddy brake |
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|
Main Brake |
Hydraulic Disc Brake |
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|
Crown Block |
TC170 |
TC225 |
TC315 |
TC450 |
|
|
Traveling Block |
YC170/YG170 |
YC225 |
YC315 |
YC450 |
|
|
Sheave OD of hoisting system,mm |
1005 |
1120 |
1270 |
1524 |
|
|
Hook |
DG225/YG170 |
DG225 |
DG315 |
DG450 |
|
|
Swivel |
Model |
SL170 |
SL225 |
SL450 |
SL450 |
|
Stem Dia,mm |
64 |
75 |
75 |
75 |
|
|
Rotary Table |
Table opening,mm |
520.7 |
698.5 |
698.5 |
952.5 |
|
Speed |
smooth change |
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|
Drive Mode |
VFD |
VFD/DC |
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|
Mast |
Height,m |
42 |
43 |
45 |
45 |
|
Type |
K |
K |
K |
K |
|
|
Max.Static Load,kN |
1700 |
2250 |
3150 |
4500 |
|
|
Substructure |
Type |
Box |
Front level,swing lift;rear level,box |
||
|
Floor Height m |
Front 4.5, Rear 0.8 |
Front 4.5, Rear 0.8 |
Front 4.5, Rear 0.8 |
Front 4.5, Rear 0.8 |
|
|
Clear Height m |
2.9 |
4.8 |
7.4 |
7.4/8.9 |
|
|
Mud Pumps |
Model×Number |
F1000×1 |
F1300×2 |
F1300×2 |
F1600×2 |
|
Drive Mode |
Combined Driven |
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|
Electric dive mode of rotary table |
AC-DC-AC or AC-SCR-DC,one for one control |
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