| ┠ ZJ20/1580T trailer Cryogenic rig ┨ |
Main features:
The power of main equipments , and transmission, control, lifting systems and crown block and mast etc are installed collectively on a special semi-trailer chassis. It is simple for installation and fast for moving. The reliable mechanical transmission is used for rotary table (RT) and drawworks (DW) to ensure the convenience of maintenance.
In accordance with the characteristics of low temperature environment, full optimized design has been made for materials, lubrication and sealing, hydraulic and pneumatic control, electric transmission and control etc. So it meets the requirements of -45 ℃ ～ 40 ℃ operation environment. The load-bearing components such as crown block, mast, substructure, ladders, handrails, drawworks etc and the parts related to human safety are all made of the anti- low temperature materials.
There are automatic temperature-control electric heating devices for speed regulation box and chain box.
Heat reservation shield, steam-heating system are available to heat the racking board and driller's cabin locally, and other heating measures can be used for improving the operation environment.
Main technical parameters :
1 |
Nominal drilling depth |
2000m （ 114mm DP ） |
10 |
Substructure model |
swing up type |
1800 m （ 127mm DP ） |
11 |
Substructure height & clear height under RT beam |
6m ， 4.3m |
2 |
Max. hook load |
1580 kN |
12 |
Mast type and effective height |
Mast type, bi-section matched installation, 36m |
3 |
Wire rope system of traveling system |
4×5 ， parallel |
13 |
Transmission mode |
Hydraulic mechanical speed regulation +chain transmission |
4 |
DW rated power |
400kW （ 536hp ） |
14 |
model and power of auxiliary diesel |
CAT C18/ 522kw |
5 |
Shift qty. of DW |
5 forward +1 reverse |
15 |
Transmission box model |
Allison S6610H |
6 |
Diameter of drilling line |
φ 29mm |
16 |
HP mud manifold |
Φ 103mm （ bore diameter ） ×35MPa |
7 |
RT opening diameter |
520mm （ 20 1/2″ ） |
17 |
Effective mud volume of solid control system |
120m3 |
8 |
RT gear |
5 forward +1 reverse |
18 |
Working pressure of hydraulic system |
16MPa |
9 |
Qty./power of drilling pump |
1×800hp pump |
19 |
Qty./power of backup motor |
1×37kw |
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