7000m Digital Control Variable-frequency Arctic Train-type Skidding Drilling Rig

The ZJ70DBS arctic train-type skidding drilling rig is designed and manufactured according to SY/T 5609-1999 “Type and Primary Parameters of Petroleum Drilling Rig” and API standards, with the performance satisfying the operation requirements of well drilling for exploring and developing the oil and gas resources in intermediate and deep land well under the condition of environmental temperature over -40℃; the skidding system is seated on the rail.

The train-type skidding rig applies for well-drilling operation on the soft ground; the whole set of drilling rig system is installed on the skidding device, which realizes the overall movement of whole drilling rig through the cylinder and satisfies the requirement of the cluster well-drilling; the whole rig system has features of compact structure, easy operation, steady operation and accurate skidding.. 
The mast is of K-type structure to accommodate top drive; the substructure is the swing-up type. By reeving though mast and substructure, the mast and substructure can be raised up together at one time the main equipment and the control room on the drilling floor are all installed at the lower position. 
The rotary table is driven independently through universal shaft by an AC variable-frequency motor, with the inertia brake; the control system can realize real time monitoring and over torque protection function. 
The electric drive adopts the vector frequency conversion drive system; the main electric equipment is housed inside the VFD/MCC room.
Integrated driller cabin room: the driller completes the main operation of rig inside the drill cabin room, and realize the real-time display, storage, printing and management of parameters (signal). 

The drilling rig is equipped with the heat insulation system, with the central heating solution. The length of the steam pipe is reduced as much as possible, and the air pipe is designed near to the steam pipe to minimize the waterlogging or icing arising from temperature change; in the extreme low temperature, the drilling rig can ensure the equipment on and beneath the drill floor, mud pump, solids control system and other important equipment to work normally.