ZJ20 electric drilling rig

MODEL

ZJ40/2250D

ZJ40/2250DB

Nominal drilling depth

8200∼13200ft 2500∼4000m (4 1/2"DP)6600∼10500ft 2000∼3200m5"DP

8200∼13200ft 2500∼4000m (4 1/2"DP)6600∼10500ft 2000∼3200m5"DP

Max. hook load

496000lps    2250kN

496000lps    2250kN

Max. drill stem load

265000lps    1200kN

265000lps    1200kN

Drawworks speed steps

1000HP  735kw

1000HP  735kw

Drawworks speed steps

4/stepless

stepless

Main brake model

Hydraulic disk brake/band brake

Hydraulic disk brake/band brake

Auxiliary brake model

Eddy current brake/ETN brake

Eddy current brake/ETN brake

Wirelind diameter

1-1/4"  32mm

1-1/4"  32mm

Crown sheaves number and travelling sheaves number

6×5

6×5

Open diameter of rotary table

27-1/2"    698.5mm

27-1/2"    698.5mm

Rotary table drive type

Independent electric drive

Independent electric drive

Mast type

"K"

"K"

Clear height of mast

142ft  43m

142ft  43m

Substructure height

16.4ft(5m)19.7ft(6m)24.6ft(7.5m)

16.4ft(5m)19.7ft(6m)24.6ft(7.5m)

Clear height of substructure

12.4ft(3.76m)15.6ft(4.76m)20.5ft (6.26m)

12.4ft(3.76m)15.6ft(4.76m)20.5ft (6.26m)

Power of single mud pump

1300HP  956kw

1300HP  956kw

Mud pump sets

2

2

Type of driving

AC-SCR-DC

AC-VFD-AC

Power of main diesel

1632HP  1200kw

1632HP  1200kw

Main diesel sets

3

3

Total volume of mud tank

1700BBL  270 m3

1700BBL  270 m3