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Land-based drilling rigs
DC-powered drilling rig ZJ70D

Slingshot type substructure, K type mast, with step type skidding device

Technical parameters

1. nominal range of drilling depth (4 1/2"DP): 4500-7000m;

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

3. rated input power of DW: 1470kW(2000HP);

4. gears of DW: 4+4R stepless speed regulating;

5. max. lines of hoisting system (along the line): 12 lines;

6. diameter of drilling wireline: ?38mm;

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

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

9. gears of RT: 2+2R stepless speed regulating;

10. effective height of mast: 45.72m;

11. height of drill floor: 10.5m;

12. area of drill floor (L×W): 13m×12m;

13. clear height of beam: 8.92m ;

14. number×power of main generator set: 4×1020kW ;

15. number×power of auxiliary generator set: 1×292kW;

16. effective capacity of mud tank: 625m3(585m3);

17. mud high pressure manifold of dual standpipe: 4"×35MPa (3");

18. total capacity of air tank: 2×3 m3+1×2.5m3

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