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Land-based drilling rigs
Custom drilling rig ZJ90DBS

Box-on-box type substructure, K type mast

Technical parameters

1. Maximum static hook load (14 lines): 6750 KN,

2. Rated input power of DW: 3200 HP,

3. Gear of DW: stepless speed regulating,

4. Maximum wirerope number (along the line) of hoisting system: 14 lines (7×8 lines),

5. Diameter of drilling line: Φ42mm(1 5/8"),

6. Outside diameter of sheave for hoisting system: 7×Φ1524mm,

7. Load of components and parts for traveling system (crown block, traveling block): 6750KN,

8. Quantity×power of mud pumps: 32200 HP,

9. Opening diameter of RT: Φ1257.3mm (49 1/2"),

10. Gear of RT drive device: stepless speed regulating,

11. Type and effective height of mast: K type/52m,

12. Effective height of substructure: 13m,

13. Area (length×width) of drill floor: 24.35m×16m,

14. Quantity and power of main generators: 5×1604KW,

15. Voltage and frequency of generator: 600V/60Hz,

16. Quantity and frequency of auxiliary generator: 1×1101kW,

17. Voltage and frequency and auxiliary generator: 480V/60Hz,

18. Nominal diameter and working pressure of high-pressure manifold and standpipe: 4"×7500PSI,

19. Volume of air tanks: 2×3m3 +2.5m3 +1.5m3,

20. Total volume of solids control system: 636m3

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