The self-propelled rig is a self-propelled rig that installs the power system, winch, derrick, traveling carriage system and transmission system on a self-propelled chassis. The whole machine has the characteristics of compact structure, high integration, small footprint, fast transportation and high relocation efficiency.

The electric drive well repair rig is based on the conventional diesel engine driven well repair rig, but the winch and turntable are changed from diesel engine driven to electric drive or oil-electric dual drive. It combines the compact structure and fast movement of the conventional well repair rig with the high efficiency, energy saving and environmental protection of the electric drive well service rig.