... is the smallest self-propelled rig, Workover Rigs,drilling rig,mobile rigs XJ150 workover rig is the smallest self-propelled rig, and mainly used ... for shallow well workover , oil testing, fishing ... .3×2.5×3.87)Weight lb(kg)48898(22180)Workover Rigs,drilling rig,mobile rigs ..... Workover Rigs,drilling rig,mobile ...