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Specifications

ZJ70 drilling rig
1),explore oil/gas wells of 7000m
2),with a diesel generator set as the power
3),API ZJ70 drilling rig


ZJ70 drilling rig
 
ZJ70 drilling rig is used to explore oil/gas wells of 7000m and under in depth in domestic and overseas oilfields.

Principle and Features of Rig Structure
ZJ70 drilling rig

1 ), Drill rig models and basic technical parameters conform to Chinese petroleum industry standards. All main components conform to API specifications.
2). The drilling rig is equipped with a diesel generator set as the power source and uses the direct current electric dirve mode ( by means of AC-SRC-DC) and the "one-to-two" control mode. These two modes feature advanced mechnical properties, convenient and reliable control, fully satisfying the needs of modern drilling technology.
3). The self lift (slingshot) type substructure is used. The mast and all equipment on the drill floor are assembled in a low position and then raised integrally.
4). The closed drawworks with stepless variable drive through four gear shifts and the turnover type sinking rotary drive case are used, all connections are made by cardan shafts. The drill floor is smooth and spacious.
5). The advanced solids control system is used, it features reasonable purifying process and novel structure.
 ZJ70 drilling rig
Basic Technical Parameters of Drilling Rig
Nominal drilling depth(114mm drill pipe)
5000~7000m
 
 
 
 
 
 
 
 
 
Substructures height
9m
Nominal drilling depth(127mm drill pipe)
4000~6000m
Floor area & clear height
13×12(m2) 7.62m
Max.hook load
4500kN
Transmission method
AC-SCR-DC
Max.input power of the drawworks
1470kW(2000HP)
Contral method
One to two control
Number of drawworks speed
4 speed stepless change
Numbers & power diesel engine units
4×800kW
Max.lines of Strvutrue
12
Numbers & power of DC units
6×800kW
Nominal dia of wire rope
φ38mm
High pressure manifold
103mm(dia)×35MPa
Numbers of rotarytable speed
2 speed stepless change
Clear volume of solid system
325m3
Mast clear height
45m