The Truck Mounted Workover Rig XJ1200 is an ultra-heavy-duty self-propelled workover rig designed for 7000-8000m ultra-deep well professional overhaul and complex downhole treatment operations.
The Truck Mounted Workover Rig XJ1200 is an ultra-heavy-duty self-propelled workover rig designed for 7000-8000m ultra-deep well professional overhaul and complex downhole treatment operations. Fully compliant with API-4F, API-7K and ISO9001 international quality and safety standards, the whole machine adopts a customized super-heavy-load special truck chassis, realizing highly integrated structural layout. It supports self-driving road transportation without disassembly of core components, achieving rapid mobilization and deployment for ultra-deep well blocks. As a top-tier flagship workover equipment, it is mainly used for ultra-deep oil/gas well major overhaul, complex downhole accident handling, super-heavy load pipe string tripping, and large-scale reservoir stimulation reconstruction. It is the core high-end supporting equipment for ultra-deep oilfield development and high-difficulty well repair projects at home and abroad.
Adopts customized ultra-heavy-duty off-road truck chassis with enhanced bearing structure. Core components including oversized derrick, high-power heavy-load drawworks and high-torque transmission system are highly integrated. The whole machine meets international road transportation standards and can be self-propelled across well sites, eliminating the need for large towing equipment and greatly improving construction mobility.
Equipped with thickened high-strength alloy vertical folding derrick, verified by full-working-condition finite element fatigue analysis. It features strong deformation resistance and structural stability under long-term ultra-high hook load. Full hydraulic automatic erecting and folding process realizes crane-free rapid setup, effectively shortening ultra-deep well operation preparation cycle.
Matched with upgraded enhanced mechanical transmission and large-flow hydraulic assist power system. It outputs stable and powerful lifting torque, adapts to extreme working conditions such as high downhole pressure, complex stratification and frequent variable loads, and maintains high-efficiency and low-failure continuous heavy-load operation.
Equipped with mechanical anti-drop locking device, hydraulic overload automatic protection, emergency braking system and whole-machine interlock safety mechanism. It comprehensively prevents operational risks such as pipe string falling, equipment overload and human misoperation, ensuring high safety of ultra-deep well heavy-duty construction.
Key structural parts adopt anti-corrosion, anti-aging and low-temperature anti-brittle materials; electrical and hydraulic systems are equipped with dust-proof, heat-insulating and cold-start auxiliary devices. The whole machine can operate stably all year round in desert high-temperature, plateau cold and windy dusty extreme oilfield environments.
| Nominal Working Depth | 8000m (73mm drill pipe) |
|---|---|
| Maximum Static Hook Load | 3600kN |
| Rated Lifting Power | 1200HP |
| Derrick Type | Ultra-heavy Vertical Folding Hydraulic Lifting Derrick |
| Maximum Traveling Speed | <=70km/h |
| Working Ambient Temperature | -40C ~ +55C |
| Executive Standard | API 4F, API 7K, ISO9001 |
The XJ1200 truck mounted workover rig is built for the heaviest repair jobs in the field: overhauling and remediating ultra-deep wells to 8000 m on 73 mm drill pipe, with a 3600 kN static hook load and a 1200 HP rated lifting power. This is not a drilling rig in the conventional sense — it is a specialist that trips ultra-deep completion strings, fishing tools and testing assemblies, and works stuck pipe, collapsed sections and sanded-up intervals where the downhole forces are brutal. The ultra-heavy vertical folding hydraulic derrick folds and unfolds without a crane, and the machine road-transports itself at up to 70 km/h, which lets a single unit service a whole block of deep wells.
When you request an XJ1200 workover rig quotation, the key inputs are the depth and condition of the wells to be serviced, the heaviest string you expect to pull, and whether the work is scheduled overhaul or emergency response — the 3600 kN hook load and 1200 HP rating need to be sized against the actual completion strings in your field, not the nominal well depth. For stuck-pipe and collapse-remediation contracts, state the expected pulling cycles so we can confirm the wireline and braking system duty.
XJ1200 pricing is quoted per configuration with the tooling package; a benchmark figure is returned within two working days of your well list and downhole data.
Optional ultra-low temperature cold-resistant and anti-brittle modification package, desert high-temperature heat insulation and full dust sealing system, and coastal salt spray heavy-duty anti-corrosion coating to adapt to global harsh oilfield conditions.
Customize chassis bearing capacity, braking system, tire matching and road lighting assembly to meet road certification specifications of different countries and regions.
Support customized high-power diesel power unit and power output curve optimization to meet super-heavy load operation demands of 8000m ultra-deep wells.
Optional digital construction monitoring system, cloud remote data transmission, big data fault early warning and intelligent pipe handling auxiliary module.
Provide personalized equipment painting, customer brand logo spraying, and project-dedicated complete spare parts package and after-sales supporting services.
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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