ZJ90DBS

  1. nominal drill depth: (1)114mm DP :6000-9000m,(2)127mm DP: 5000-8000m; 
  2. max. load of hook: 7600kN; 
  3. max. weight of drill string: 3200kN; 
  4. line system: 7*8 along the line; 
  5. diameter of drilling wireline: φ45mm; 
  6. rated input power of DW: 3200kW; 
  7. gears of DW: two gears, stepless speed regulating (2+2R); 
  8. diameter of RT opening: ø1257.3mm(49 1/2″); 
  9. rated power/number of drilling pump: 1193kW(1600hp)/3; 
  10. effective height of mast: 48m; 
  11. height of drill floor: 12m; 
  12. area of drill floor (L×W): 13.78m×11m; 
  13. clear height of RT beam: 10m; 
  14. capacity of air tank: 2*2m3 +2m3(buffer tank on drill floor); 
  15. power/number of main generator set: 1020kW/5; 
  16. power/number of auxiliary generator set: 292kW/1; 
  17. total capacity of mud tank: 508m3; 
  18. diameter/rated pressure of drilling fluid manifold: 4″/35Mpa.