250HP Workover Rig

250HP workover well service rig is a kind of truck-mounted type workover equipment. The 250HP workover rigs adopt home-made 6×6 special chassis and high speed diesel engine. With the adoption of hydraulic mechanical transmission mode, it has big starting torque and high transmission efficiency. The well service rig mainly consists of single drum drawworks, two-section telescopic mast, integrated box type crown, 3×4 traveling structure, hydraulic and pneumatic system etc. It is mainly used for middle and small workover job in oil and water well within 3200~3600m and the suitable tubing is 73mm (2.7/8″).


1. The chassis of well service rig adopts 6×6 special truck chassis. It has the feature of comfortable to operate and sit, and it works well on rugged road. 2. The service rigs adopt high speed diesel engine with hydraulic transmission box, the transmission is steady and flexible and its operation is simple and easy. 3. The 21m two-section mast or 23.5m two-section mast is optional, and simple drilling platform is optional. 4. Drawworks system of well service rig can adopt single drum or double drum type. The main drum is integral LEUBS groove with arranged rope. It is equipped with Pneumatic crash-proof device.


Parameters of 250HP Workover Rig

Workover depth (2 7/8″ upset tubing) m 3200
Nominal hook load kN 400
Max. hook load kN 675
Mast height m 21, 23.5
Diameter of rope mm/Effective number of rope n φ22/6
Max. hoisting speed of hook m/s 1.5
Outside dimension when moving (including mast) mm 13910×2705×4320
Curb weight kg 31490