ZJ50/3150LDB

On the basis of common mechanical rig, driving of RT a is separated from mud pump and DW, and RT is driven by an independent AC VF motor. RT rev, torque and mud pump stroke can be adjusted separately as per drilling technology.
RT rev adjusting and DW auto-bit-feeding both adopt all-digital auto control technique, which make the performance of the rig under drilling condition get close to digital-control electric VF rig; driller operates the touch screen to fulfill drilling operation through optimized drilling parameters, which will reduce labor intensity significantly and improve work efficiency. Display, restoration, regulation and control, remote management of major drilling parameters can be realized

Main technical parameters

1

Nominal drilling depth

3500 ~ 5000m （ 114mmDP ）

9

Quantity and power of drilling pump

2× 1600 hp

2800 ~ 4500m （ 127mmDP ）

10

Substructure type

Block package type

2

Max hook load

3150 kN

11

Substructure height and clear height under RT beam

9m / 7.62m

3

Wire rope system of traveling system

6x7 ， parallel

12

Mast type and effective height

K TYPE ， 44.5m

4

DW rated power

1100 kW （ 1500 hp ）

13

Transmission mode

hydraulic transmission and chain paralleling +AC-VFD-AC

5

DW gear

4 gears

6 gears

14

Quantity/power of main diesel engine

3x810 kW

15

Quantity/power of auxiliary generator set

3×400kW

6

Diameter of drilling wire rope

φ 35mm

7

RT opening diameter

952.5mm （ 37 1/2 ″ ）

16

Quantity and power of VF motor

1×600kW+1x45 kW

698.5mm （ 27 1/2 ″ ）

17

HP mud manifold

φ 102mm （ bore diameter ） ×35MPa

8

RT gear

1 gear

2 gears

18

Effective mud volume of solid control system

320m3