1 AC variable frequency electric drive drilling rig , the application of uniaxial winch gear box drive and spin -up base for 114mm drill pipe, drilling depth :3000-7000 m deep oil, gas wells. (2) using diesel generator sets as the active force , AC VFD electric drive system via the diesel generator into alternating current output frequency is adjustable , and then were driven by AC variable frequency motor winches , rotary pumps and drilling work . 3 winch with small size, light weight, reliable performance, stable , easy maintenance and so on. AC frequency control and dynamic braking . Use the parking brake disc , positioning and emergency stop . The main functions are to achieve full digital control via computer and electronic control systems. AC variable gear motor reducer gearbox driven by the drum , as the automatic drilling and emergency braking. 4 derrick is K -type structure , low installation, since the whole place , easy accessibility , good stability and high security. 5 There are boxes stacked rig substructure , slingshot style , spin -up . All equipment used in all low countertops installation , use winch tension rose from bit . 6 Dial by AC inverter motor gear box through a chain -driven, variable speed, torque and speed to achieve full digital control . 7 . Drilling pump AC variable frequency motor drive , power, high pressure pump , can be between 0 to rated speed stepless . 8 The use of advanced digital vector control inverter system with remote monitoring and automatic fault diagnosis function to ensure flexible and reliable control system , safe and efficient. 9 drilling parameters with real-time display , capture, storage, printing , and set up the system to create the necessary conditions for the realization of intelligent drilling engineering , information technology