ZJ50/3150DBS

Major features:
It adopts integrated design of mechanical, electrical, hydraulic, pneumatic and digital control, utilizes fully the advantages of advanced digital control AC VF electric transmission, and simplifies its mechanical structure.
As adopting of slingshot type substructure, drill floor equipments and driller cabin etc realize low-position installation and integer lifting.
Electric transmission adopts vector VF drive system to realize all digital operation and control, and also processes elementary functions of automation, intelligence and information to realize collection (signal), display, restoration, printing, remote monitoring and management of control and drilling parameters.
By the use of VF technology, DW realizes max torque output when its speed is zero to ensure the suspension function of rig lifting system, which change traditional driller operation mode completely.
 This rig is equipped with an integral driller's cabin, in which a driller can finish major operations.

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

slingshot type

2

Max hook load

3150 kN

11

Substructure height and clear height under RT beam

9m / 7.6m

3

Wire rope system of traveling system

6 × 7 ， parallel

12

Mast type and effective height

K TYPE ， 45m

4

DW rated power

1100 kW （ 1500 hp ）

13

Transmission mode

AC-DC-AC ， one-on-one control

5

DW gear

One gear stepless speed regulation

14

Quantity/power of main diesel engine

3 × 1087 kW

15

Quantity/power of auxiliary generator set

1×300kW

6

Diameter of drilling wire rope

φ 35mm

7

RT opening diameter

952.5mm （ 37 1/2 ″ ）

16

Quantity and power of VF motor

3×600kW+1x45 kW+2× 1200 kW

698.5mm （ 27 1/2 ″ ）

17

HP mud manifold

φ 102mm （ bore diameter ） ×35MPa

8

RT gear

One gear stepless speed regulation

18

Effective mud volume of solid control system

320m3