Features:
--The rig is applicable to 4000-6000m drilling depth for oil well with 127mm drilling pipe, and 4500-7000m drilling depth with 114mm drilling pipe.
--Step-less speed control to draw works, rotary table and mud pumps
--Rotary table is driven independently or compound
--Grooved draw works drum with air clutch to shift speed
--Substructure type of sling shot allows mast and floor equipment installed at low height level
--Major components of rig conform to API specifications and are allowed to use API monogram
SPECIFICATIONS OF ZJ70D
Item | Technical specification ZJ70/4500D |
Nominal drilling depth | 6000m(127mm/5D.P.) 7000m(114mm/4-1/2 D.P.) |
Max .hook load | 4500KN |
Rated power of draw works | 2000HP |
Main brake | hydraulic disc brake |
Auxiliary brake | DS70 eddy current brake/Eaton 436WCB |
Hoisting wire lines | 6×7 |
Dia, of drilling line | 38mm ( 1-1/2) |
Id. of swivel stem | 75mm (3) |
Model and No. of mud pumps | F-1600/3 sets |
Opening of rotary table | 952.5mm (37-1/2) |
Type of mast and effective height | K type /45 m |
Height of drilling floor | 9m/10.5m |
Clear height | 8.92m |
Transmission of power | AC-SCR-DC/AC-DC-AC |
Diesel engine no. of generators and power | 1330KW×4 |
Type of diesel engine | CAT 3512B (as requirement) |
Speed | 1500r/min |
Frequency/volt of generators | 3/50 HZ/600V |
Compressed air pressure | 1 MPa |
Mud high pressure manifold | 4×35 MPa |
Total capacity of mud circulation system | 400(m³) as requirement |
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rig mounted drilling rig ZJ70
