7000 meters electric drilling rig

MODEL

ZJ70/4500D

ZJ70/4500DB

Nominal drilling depth

1480023000ft 45007000m(4 1/2"DP)1310019700ft 40006000m(5"DP)

1480023000ft 45007000m(4 1/2"DP)1310019700ft 40006000m(5"DP)

Max. hook load

992000lps  4500kN

992000lps  4500kN

Max. drill stem load

485000lps  2200kN

485000lps  2200kN

Drawworks speed steps

2000HP 1470kw

2000HP 1470kw

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

1-1/2"   38mm

1-1/2"   38mm

Crown sheaves number and travelling sheaves number

7×6

7×6

Open diameter of rotary table

37-1/2"  952.5mm

37-1/2"  952.5mm

Rotary table drive type

Independent electric drive

Independent electric drive

Mast type

"K"

"K"

Clear height of mast

152ft   46.5m

152ft   46.5m

Substructure height

20.5ft(7.5m),29.5ft(9m),34.5ft(10.5m)

20.5ft(7.5m),29.5ft(9m),34.5ft(10.5m)

Clear height of substructure

20ft(6.12m),25ft(7.62m),30ft(9.12m)

20ft(6.12m),25ft(7.62m),30ft(9.12m)

Power of single mud pump

1600HP   1180kw

1600HP   1180kw

Mud pump sets

3

3

Type of driving

AC-SCR-DC

AC-VFD-AC

Power of main diesel

1630HP  1200kw

1630HP  1200kw

Main diesel sets

4

4

Total volume of mud tank

2500BBL  380 m3

2500BBL  380 m3