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Land-based drilling rigs
DC-powered drilling rig ZJ50D

A-frame structure, K type mast, swing up substructure, with step type skidding device

Technical parameters

1. nominal range of drilling depth (127mm): 5000m;

2. max. load of hook: 3150kN;

3. max.weight of drill string: 1800kN;

4.sheave system of lifting system: 6×7 along the line;

5.diameter of drilling wireline: ?35mm;

6.rated input power of DW: 1600kW;

7. gears of DW: 4 forward+4 reverse;

8.number×power of mud pump: 3×1600HP;

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

10.gears of RT: 2 gears;

11.effective height of mast: 45m;

12.height of drill floor: 9m;

13. area of drill floor (L×W): 13.4m×11.65m;

14.clear height of RT beam: 7.75m;

15. frequency and voltage of main generator set: 50Hz/600V;

16.frequency and voltage of MCC system: 50Hz/400V;

17. total capacity of mud tank: 433m3;

18.mud high pressure manifold of dual standpipe: 4"×35Mpa;

19. working pressure of air supply purification device: 1Mpa;

20. capacity of air tank: 2.5m3 (2*2m3 (drill floor)+2.5m3 (air supply house) horizontal type);

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