DC-powered drilling rig

nominal range of drilling depth (4 1/2″DP): 4500-7000m;  max. load of hook (12 lines): 4500kN;  rated input power of DW: 1470kW(2000HP);  gears of DW: 4+4R stepless speed regulating;  max. lines of hoisting system (along the line): 12 lines;  diameter of drilling wireline: ø38mm;  number×power of mud pump: 3*1600HP;  nominal diameter of RT opening: ø952.5mm;  gears […]

nominal range of drilling depth (127mm): 5000m;  max. load of hook: 3150kN;  max.weight of drill string: 1800kN;  4.sheave system of lifting system: 6×7 along the line;  5.diameter of drilling wireline: ø35mm;  6.rated input power of DW: 1600kW;  gears of DW: 4 forward+4 reverse; 8.number×power of mud pump: 3×1600HP;  9.nominal diameter of RT opening: ø952.5mm;  10.gears […]