The Truck Mounted Workover Rig XJ550 is a high-efficiency self-propelled oilfield workover rig developed for 3500-4500m medium-deep well overhaul and maintenance operations.
The Truck Mounted Workover Rig XJ550 is a high-efficiency self-propelled oilfield workover rig developed for 3500-4500m medium-deep well overhaul and maintenance operations. Manufactured in strict accordance with API-4F, API-7K and ISO9001 international quality standards, the whole equipment is fully integrated on a heavy-duty off-road truck chassis. It features integrated structure design without repeated disassembly during well-site transfer, realizing rapid self-driving relocation. This rig is mainly used for conventional oil and gas well workover, paraffin removal, plugging removal, well repairing and reservoir stimulation operations. It is highly adaptable to scattered well points, mountainous oil areas and frequent migration operation scenarios, serving as mainstream core equipment for daily oilfield maintenance and reconstruction projects.
Derrick, drawworks, power transmission system and operating mechanism are highly integrated on the professional heavy-duty truck chassis. The whole rig can travel on public roads independently without tractor cooperation, realizing fast cross-well-position transfer and greatly improving field operation mobility.
Equipped with high-reliability hydraulic telescopic and lifting system. The derrick can be erected and folded automatically on site without large-tonnage cranes, which simplifies well-site deployment procedures, saves auxiliary construction costs and shortens operation preparation cycle.
Adopts optimized mechanical transmission matching hydraulic auxiliary power, realizing stable output of lifting torque and flexible speed regulation. It meets the frequent start-stop and variable-load working characteristics of workover operations, with high transmission efficiency and low energy consumption.
The overall structural layout is optimized with a low center of gravity, ensuring driving stability and on-site operation safety. Equipped with multiple mechanical limit protection and hydraulic safety interlock devices to prevent overload and misoperation risks during workover construction.
Key components adopt anti-corrosion and anti-aging treatment, adapting to desert, Gobi and field harsh working environments. Standardized general wearing parts simplify daily maintenance and global after-sales spare parts replacement.
| Nominal Working Depth | 4500m (73mm drill pipe) |
|---|---|
| Maximum Static Hook Load | 1580kN |
| Rated Lifting Power | 550HP |
| Derrick Type | Vertical Folding Hydraulic Lifting Derrick |
| Traveling Speed | <=80km/h |
| Working Ambient Temperature | -35C ~ +55C |
| Executive Standard | API-4F, API-7K, ISO9001 |
Routine workover is a loop that repeats dozens of times a year on a mature field — pull the string, treat the well, run it back, rig down and drive to the next location — and on 3500 to 4500 m medium-deep wells, rigging a heavier unit than the loop actually needs burns money on every cycle. The XJ550 truck mounted workover rig is sized squarely for that band: a 4500 m nominal working depth on 73 mm pipe, a 1580 kN static hook load and 550 HP of lifting power, built for conventional overhaul, paraffin removal, plugging removal and wellbore cleaning rather than for ultra-deep fishing. The vertical folding hydraulic mast erects itself without a crane, and the whole integrated unit drives between scattered well points — including mountainous and hilly lease roads — at up to 80 km/h, which is what keeps a scattered well group serviced with one crew.
Tell us, on an XJ550 inquiry, the depth spread of your well group, the heaviest downhole string you expect to pull, and how many times a year the spread relocates. The 1580 kN rating is the practical ceiling for this class — if your programme includes sidetrack deepening or heavy completion pulls above that, the XJ650 or the super-heavy XJ1000 will be the correct step-up, and we will flag it rather than over-size the unit. Because this rig is tuned for frequent migration, also note the worst road condition between pads and whether the site needs the optional wellhead protection or pipe-handling interfaces.
Commissioning support is arranged at your site, and our engineers keep remote diagnostics available after the crew takes over the daily loop.
Optional low-temperature resistant configuration including hydraulic heating system and cold-start auxiliary device for frigid northern regions; dust-proof and heat-insulation upgrade for desert high-temperature working conditions.
Customize chassis axle load, braking system and road lighting components to meet road traffic certification standards of different countries and regions.
Support diesel power upgrade and hybrid power configuration to adapt to oilfield sites without stable grid power supply.
Reserved installation interfaces for auxiliary workover tools, automatic pipe arrangement device and wellhead protection system to enhance operational efficiency.
Provide customized equipment painting color, customer brand logo spraying and exclusive complete spare parts package for turnkey projects.
Related guides: mountainous drilling rigs for remote access and after-sales support and spare parts.
Tell us your target depth, hook load and drive type; our engineers reply within 24 working hours.
Use the official contact information for model selection, specification discussion, and project inquiry.
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