ZJ40/2250DBS

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

2500 ~ 4000m （ 114mmDP ）

10

Substructure type

slingshot type

2000 ~ 3200m （ 127mmDP ）

2

Max hook load

2250kN

11

Substructure height and clear height under RT beam

7.5m ， 6.26m

3

Wire rope system of traveling system

5×6 ， parallel

12

Mast type and effective height

K TYPE ， 43m

4

DW rated power

1000kw

13

Transmission mode

AC-VFD-AC, one-on-one mode

5

DW gear

One gear stepless speed regulation

14

Quantity and power of main generator set

3× 1200 kw

15

Quantity and power of auxiliary generator set

1x292kw

6

Diameter of drilling wire rope

φ 32mm

7

RT opening diameter

698.5mm （ 27 1/2″ ）

16

Quantity and power of AC motor

3×1000kW+1×45kw+1x600kw

8

RT gear

One gear stepless speed regulation

17

HP mud manifold

Φ 103mm （ bore diameter ） ×35MPa

9

Quantity and power of drilling pump

2× 1300 hp

18

Effective mud volume of solid control system

260m3