Product Features：
1.Adopting advanced AC-SCR-DC technology, smooth shift changes are available for drawworks, rotary table and mud pumps for optimum drilling performance.
2. Both swing lift and sling-shot parallel-integrated substructures with 9mand10.5 mfloor height are optional. All parts on rig floor and mast are installed on ground and raised with drawworks power.
3. Main brake of drawworks can be hydraulic disc brake or band brake. Auxiliary brake of drawworks is air-cooled or water-cooled electric magnetic eddy brake, or pneumatic disc brake.
4. Rotary table is driven by drawworks power through compound drive or by an independent motor. In addition, emergency device is provided to drive rotary table via drawworks once in emergency for reliable drilling operations.
5. 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.
6. Integrated skid rail may be provided to meet requirements for cluster well drilling.
7. Top drive drilling system can be equipped.
Product types and specifications：
|
Drilling rig model |
ZJ40/2250D |
ZJ50/3150D |
ZJ70/4500D |
||
|
Nominal drilling |
127mm(5") drill pipe |
2000-3200 |
2800-4500 |
4000-6000 |
|
|
114mm(4 1/2" ) drill pipe |
2500-4000 |
3500-5000 |
5000-7000 |
||
|
Max. hook load，kN (t) |
2250（225） |
3150（315） |
4500（450） |
||
|
Hook speed , m/s |
0-1.4 |
0-1.49 |
0-1.51 |
||
|
Line strung of hoisting system |
10 |
12 |
12 |
||
|
Drill line diameter，mm |
32 |
35 |
38 |
||
|
Max. pull of fast line，kN |
280 |
350 |
487 |
||
|
Drawworks |
Model |
JC-40D |
JC-50D |
JC-70D |
|
|
Power rating，kW (HP) |
735（1000） |
1100(1500) |
1470(2000) |
||
|
Speed |
4 |
4 |
4 |
||
|
Main brake |
Hydraulic disc brake |
||||
|
Auxiliary brake |
Eddy or pneumatic disk brake |
||||
|
Crown block |
TC-225 |
TC-315 |
TC-450 |
||
|
Traveling block |
YC-225 |
YC-315 |
YC-450 |
||
|
Sheave OD of hoisting system, mm (in) |
1270(50) |
1270(50) |
1540(60.6) |
||
|
Hook |
DG-225 |
DG-315 |
DG-450 |
||
|
Swivel |
Model |
SL-450 |
SL-450 |
SL-450 |
|
|
Stem dia. , mm |
75 |
75 |
75 |
||
|
Rotary table |
Table opening，mm (in) |
698.5(27 1/2) |
952.5(37 1/2) |
952.5(37 1/2) |
|
|
Speed |
I or II, smooth change |
I or II, smooth change |
I or II, smooth change |
||
|
Drive mode |
Independent electric drive |
Independent electric drive or compound drive |
Independent electric drive or compound drive |
||
|
Mast |
Type |
K |
K |
K |
|
|
Height, m |
44 |
45 |
45 |
||
|
Max. load, kN(lbs) |
2250(500000) |
3150(700000) |
4500(1000000) |
||
|
Racking board height,m |
24.5, 25.5, 26.5 |
||||
|
Substructure |
Type |
sling-shot |
Swing lift or sling-shot |
||
|
Floor height,m |
7.5 |
9 |
9 (10.5) |
||
|
Clear height,m |
6 |
7.6 |
7.6 (9) |
||
|
Mud pump |
Model×number |
F-1000×2 |
F-1600×2 |
F-1600×3 |
|
|
Drive mode |
DC elecetric |
||||
|
High pressure manifold |
Ф103( bore dia. ) ×35MPa |
||||
|
Electric drive mode |
AC-SCR-DC，one for one or one for two control |
||||
|
The number and capacity of the main generator sets |
2×1910KVA |
3×1500KVA |
4×1500KVA |
||
|
|
|
|
|
|
|