ZJ90 / 6750DB Rig

Rig adopts double motors drive single shaft ishift Ac frequency conversion Drawworks, realize double stages stepless speed regulation
Equipped with 3 sets of high pump pressure triplex mud pump F - 1600 , 1 set 495 rotary table, and integration of driller control room
electric drive control system adopts Siemens PLC and Ac freguency conversion technology, has faut self-diagnosis function and drling
remote diagnosis and control software interface.

1.The vector frequency conversion control of electric drive control system realizes the fuly digital control operation, reserved interface for
remote fault diagnosis expert system can realize the collection of control parameters and driling parameters (signal, display, storage.
printing,remote monitoring and management.
2.Drawworks adopts with double motor drive, and can drive control separately, power reserve factor is large, the equipment efficiency and
safety are high
3.Give full lav to the advantage of advanced digital AC frequency conversion electric transmission, and uses the machine, electricity, iquid
gas, digital control integration design, improve the control accuracy, simplifies the structure of drilling rig.
4.Operation control system using dual PLC redundancy design, improve the reliability of the system.
5.Mud purification circulation system design is scientifc, F - 1600 high pressure mud pump can improve driling speed, ensures the bit
reliable high-speed rotation, pro-long the service life of the drill bit and improve driling efficiency.