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Oilfield Drilling Equipment

VFD Drilling Rigs

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  • 2022-01-11 16:29:07
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Adopting advanced full numerical AC VFD technology, intellectual drilling control is accomplished through PLC, touch screen and integrated design of air, electric, hydraulic parts and drilling instrumentation.
Large power and wide frequency motors are used for complete range speed setting of drawworks, rotary table and mud pumps.
Single shaft, gear drive and one or two shift smooth speed change drawworks is simple in structure and reliable in operation. Compound hydraulic disc brake and dynamic braking are used for braking system.
Automatic drilling is obtained by drawworks main motor or an independent motor real time supervision and control for tripping in, tripping out and drilling operation are obtained.
Protective functions to air or hydraulic loss, electric control system or motor trouble, limit for rotary torque and pump pressure is available.
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. All operations by driller can be completed in the cabin for better working conditions and less working strength.
Top drive drilling system can be equipped.
Integrated skid rail may be provided to meet requirements for cluster well drilling.
Intellectual soft starting device, ET200 or ASI module is used for protection and supervision to MCC system.
Intellectual position control for traveling block to prevent top and low collision is provided.

         Product types and specifications


Drilling rig model

ZJ15/900DB

ZJ30/1700DB

ZJ40/2250DB

ZJ50/3150DB

Nominal
drilling depth,
m

127mm(5")
drill pipe

700-1400

1500-2500

2000-3200

2800-4500

114mm(4 1/2")
drill pipe

800-1500

1600-3000

2500-4000

3500-5000

Max. hook load, kN

900

1700

2250

3150

Line strung of
hoisting system

8

10

10

12

Drill line diameter,mm

26

29

32

35

Max. pull of fast line,kN

130

210

280

350

Draw-
works

Model

JC-15DB

JC-30DB

JC-40DB

JC-50DB

Power rating
kW (HP)

300(410)

600(815)

800(1090)

1100(1500)

Speed

I or II, smooth change

I or IV, smooth change

I or II, smooth change

Brake mode

Hydraulic disc brake + Regenerating brake

Hydraulic disc brake + Regenerating brake(Pneumatic disc brake)

Crown block

TC90

TC170

TC225

TC315

Traveling block

YG135

YG170

YC225

YC315

Sheave OD of hoisting system, mm

660

1005

1120

1270

Hook

YG135

YG170

DG225 or DG250

DG315

Swivel

Model

SL-135

SL-170

SL-225

SL-450

Stem dia.,mm

64

64

75

75

Rotary
table

Stem dia,
mm(in)

444.5(17 1/2)

520(20 1/2)

698.5(27 1/2)

952.5(37 1/2)

Speed

I or II, smooth change

Drive mode

combined or independent drive

Independent drive

Mast

Type

K or telescoping

K or A

K

Height, m

31 or 39

33 or 41

44

45

Max. load, kN

900

1700

2250

3150

Substr-ucture

Type

Box or telescoping

Dual lift

Floor height, m

3.8

4.5

5

6

7.5

9

Clear height, m

2.6

3.3

3.8

4.8

6

7.6

Mud
pump

Model×number

F-800×1

F-1300×1

F-1300×2

F-1600×2

Drive mode

Electric drive or diesel engine drive

Electric drive

Electric control mode

AC-DC-AC