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Land-based drilling rigs
Digitally-controled variable-frequency AC drive drilling rig ZJ70DBS

Swing up type substructure, K type mast, with step type skidding device

Technical parameters

1. nominal range of drill depth: 7000m;

2. max. static load of hook (12 lines): 4500kN;

3. max. input power of DW: 2000KW;

4. gears of DW: 2 gears, stepless speed regulating;

5. max. lines of hoisting system: 6×7;

6. diameter of drilling wireline: ?38 mm;

7. outer diameter of sheave of hoisting system: 6×?1524mm+?1778mm;

8. max. load of hoisting parts (crown block and traveling block): 4500kN;

9. max. load of swivel: 4500kN;

10. diameter of swivel stem: ?75mm;

11. number×power of mud pump: 3×1600HP;

12. nominal diameter of RT opening: ?952.5mm;

13. gears of RT: 1 gear, stepless speed regulating;

14. effective height of mast: 45m;

15. height of drill floor: 10.5m;

16. area of drill floor (L×W): 13.25m×12.19m;

17. clear height of RT beam: 9.1m;

18. number and power of main generator set: 4×1200KW;

19. number and power of auxiliary generator set: 1*292kW;

20. mud high pressure manifold of dual standpipe: 4"×52Mpa;

21. total capacity of air tank: 2.5m3 +2×3m3.

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