The Truck Mounted Workover Drilling Rig XJ1350 is a high-power super-heavy-duty self-propelled workover and dual-purpose drilling rig, designed for 7000m-level ultra-deep well overhaul, complex downhole accident treatment and supplementary drilling operations.
The Truck Mounted Workover Drilling Rig XJ1350 is a high-power super-heavy-duty self-propelled workover and dual-purpose drilling rig, designed for 7000m-level ultra-deep well overhaul, complex downhole accident treatment and supplementary drilling operations. Fully compliant with API-4F, API-7K and ISO9001 international industrial standards, the whole equipment adopts an enhanced heavy-load special truck chassis with highly integrated structural layout. It realizes self-driving road transportation without disassembling core components, supporting rapid cross-well-site migration and fast on-site deployment. This dual-function rig integrates professional workover and fine drilling capabilities, perfectly adapting to ultra-deep oil and gas well heavy-load maintenance, old well deepening, sidetracking reconstruction and complex fault well remediation. It is a high-efficiency and multi-functional core equipment for ultra-deep oilfield comprehensive development and well condition renovation projects.
Equipped with customized reinforced heavy-duty off-road truck chassis with upgraded bearing and shock-absorbing structure. Core components including high-load derrick, large-power drawworks and high-torque transmission system are compactly integrated. The whole machine meets road driving standards, realizing independent rapid migration without tractor assistance, greatly improving maneuverability for scattered ultra-deep well blocks.
Adopts thickened high-strength alloy vertical folding derrick with overall fatigue resistance and deformation resistance optimization. The full-automatic hydraulic erecting and folding system eliminates the need for field crane cooperation, drastically shortening well site preparation time and auxiliary construction cycle, and adapting to high-frequency and high-intensity ultra-deep well operation demands.
Matched with upgraded enhanced mechanical transmission and large-flow hydraulic auxiliary power system. It outputs sustained and powerful lifting torque and rotary power, perfectly coping with complex working conditions such as high downhole pressure, hard stratification and stuck pipe in ultra-deep wells. It supports both heavy-load workover operations and precise supplementary drilling construction with dual functional advantages.
Built-in mechanical anti-drop locking device, hydraulic overload automatic protection, emergency braking system and whole-machine operation interlock safety device. It comprehensively prevents operational risks such as pipe string falling, equipment overload and human misoperation, ensuring high safety and stability during ultra-deep well heavy-load construction and drilling operations.
Key load-bearing structural parts adopt anti-corrosion, anti-aging and low-temperature anti-brittle treatment; electrical and hydraulic systems are equipped with dust-proof, heat-insulating and cold-start auxiliary modules. The rig can operate stably all year round in desert high-temperature, plateau cold and windy dusty harsh oilfield environments.
| Nominal Working/Drilling Depth | 7000m (73mm drill pipe) |
|---|---|
| Maximum Static Hook Load | 4000kN |
| Rated Lifting Power | 1350HP |
| 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 |
An aging 7000 m-class producer rarely needs only a tubing pull: once the completion is out, the operator often faces a sidetrack, a hole deepening or a slim-hole re-entry before the well is on again — and that hand-off between repair and light drilling is where most schedules slip. The XJ1350 truck mounted workover drilling rig is engineered to close that gap on one self-propelled carrier. Its 4000 kN static hook and 1350 HP power train handle the heavy work of fishing and pulling, while the same package carries the fine drilling capability needed to deepen or sidetrack the existing bore. The self-raising hydraulic mast goes up without a hired crane, and the whole machine travels itself between ultra-deep pads at up to 70 km/h, so one spread stays on location instead of waiting for a second unit to be trucked in.
Two questions drive an XJ1350 quotation more than any others. First, the split across your campaign: how many days are pure repair and how many are spent deepening or sidetracking — that decides the drawworks line-up and the mud-circulation side of the package. Second, the heaviest completion or sidetrack assembly you expect to run, because the 4000 kN rating has to be read against real string weights rather than the 7000 m nameplate. If the contract also covers deep reservoir stimulation or high-pressure testing, list the treating pressure and we will confirm the standpipe and hose rating.
Every offer is built as a delivered package — the carrier, power plant, circulating system and a first spares set are itemized line by line — so the figure you compare against rival bids is the figure that actually turns up on site.
Optional ultra-low temperature cold-resistant anti-brittle modification and full-system cold-start auxiliary device for alpine regions; desert high-temperature heat insulation and full dust sealing upgrade for arid and windy sandy oilfields.
Customize chassis load parameters, braking system, tire configuration and road lighting assembly to meet highway certification standards of different countries and regions.
Support high-power enhanced diesel power configuration and power output curve optimization to adapt to ultra-deep well super heavy-load dual working conditions of drilling and workover.
Reserved mounting interfaces for digital construction monitoring system, cloud remote data transmission, intelligent fault early warning and automatic pipe handling auxiliary module.
Provide personalized equipment painting, customer brand logo spraying, and project-dedicated complete wear-resistant spare parts package and full-cycle after-sales technical support.
Related guides: mountainous drilling rigs for remote access and after-sales support and spare parts.
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