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The trailer mounted drilling rig is designed and developed for the high temperature, heavy sand storm and special transportation conditon of desert and Gobi area. The rig is moved with special draging vehicle and wheels. Highly modularized design is adopted where all the drilling equipments are fixed onto transportation module. For shor distance, the rig can be moved without lowering the mast and substructure or with the mast upright and the substruture at low position. For long distance, the substructure and mast shall be lowered and moved separately. The power module, mud pump module, mud tanks and other accessories can be moved quickly with trailers. Most of trailer mounted rigs are equipped with AC VFD drive system and the main models are of RT50DBT and RT70DBT. |