Electrical driven drilling rig
Mechanical driven drilling rig
SCR DC driving system
VFD system
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MODEL:U.S Met
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ZJ70/4500D
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ZJ70/4500DB
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Nominal drilling depth:
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14800∼23000ft 4500∼7000m(4 1/2"DP)
13100∼19700ft 4000∼6000m(5"DP) |
14800∼23000ft 4500∼7000m(4 1/2"DP)
13100∼19700ft 4000∼6000m(5"DP) |
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Max.hook load:
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992000lps 4500kN
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992000lps 4500kN
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Max.drill stem load:
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485000lps 2200kN
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485000lps 2200kN
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Drawworks max.input power :
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2000HP 1470kw
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2000HP 1470kw
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Drawworks speed steps
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4/stepless
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stepless
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Main brake model
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Hydraulic disk brake/band brake
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Hydraulic disk brake/band brake
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Auxiliary brake model
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energy consumption brake /eddy current brake /E.T.N brake
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energy consumption brake/eddy current brake /E.T.N brake
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Wireline diameter:
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1-1/2" 38mm
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1-1/2" 38mm
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Crown sheaves number and travelling sheaves number
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7×6
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7×6
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Open diameter of rotary table:
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37-1/2" 952.5mm
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37-1/2" 952.5mm
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Rotary table drive type
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Independent electric drive
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Independent electric drive
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Mast type
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"K"
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"K"
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Clear height of mast:
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152ft 46.5m
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152ft 46.5m
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Substructure height:
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20.5ft(7.5m),29.5ft(9m),34.5ft(10.5m)
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20.5ft(7.5m),29.5ft(9m),34.5ft(10.5m)
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Clear height of substructure:
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20ft(6.12m),25ft(7.62m),30ft(9.12m)
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20ft(6.12m),25ft(7.62m),30ft(9.12m)
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Power of single mud pump:
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1600HP 1180kw
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1600HP 1180kw
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Mud pump sets
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3
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3
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Type of driving
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AC-SCR-DC
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AC-VFD-AC
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Power of main diesel:
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1630HP 1200kw
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1630HP 1200kw
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Main diesel sets
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4
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4
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Total volume of mud tank:
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2500BBL 380 m3
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2500BBL 380 m3
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