ZJ50/3150D

DW, RT and mud pump realize independent DC stepless speed regulation which provide guarantee for drilling technology optimization.
Mast, substructure and drill floor equipments can be installed at lower position, and then be lifted integrally upon DW power.
Auto-bit-feeding adopts all-digital auto control technique, 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

5000m （ 114mmDP ）

10

Substructure type

slingshot type

Swing up type

4500m （ 127mmDP ）

2

Max hook load

3150kN

11

Substructure height and clear height under RT beam

9m / 7.62m

9m /7.75m

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 （1500hp ）

13

Transmission mode

AC-SCR-DC

5

DW gear

4 forward+ 4 reverse ， stepless speed regulation

14

Quantity and power of main generator set

3 × 1200 kW

6

Diameter of drilling wire rope

φ 38mm

15

Quantity and power of auxiliary generator set

1×292kW

7

RT opening diameter

952.5mm （ 27 1/2″ ）

16

Quantity and power of DC motor

7 × 800kw （DC） + 1 × 45kw（VF）

8

RT gear

2 forward

2 reverse

17

HP mud manifold

Φ 103mm （ bore diameter ） ×35MPa

9

Quantity and power of drilling pump

2 × 1600 hp pump

18

Effective mud volume of solid control system

320m3