1800kN hook on a 5×6 purchase
The traveling block reeves five by six on Φ32mm wire rope for a 1800kN maximum hook and 1800kN mast static rating, the capacity for integral 8000m casing work and batch fishing.
Workover Rigs
750HP Workover Rig
The XJ750 is the first rig in the fleet to split its power: twin Caterpillar C15 engines, each behind its own Allison M5620AR transmission, feed a single drawworks rated for a 280kN fast-line pull and 450rpm. That twin pack lifts a 1800kN hook reeved 5×6 on Φ32mm wire rope under a 38m mast, with a 6m workover floor, and it holds 8000m of 73mm tubing or 6500m of 88.9mm drill pipe. The two-engine layout is the point here: on an 8000m super-deep string, one pack keeps the job moving if the other needs service, and redundancy is why national key fields choose this carrier over a single-engine flagship. A 14×8 all-terrain chassis moves the complete rig between remote super-deep clusters as one load.
Core advantages
Designed around the operating requirement.
Twin CAT C15 power packs
Two Caterpillar C15 engines, each through its own Allison M5620AR, drive the drawworks as paired power packs; the redundancy keeps an 8000m well on line when one pack is under maintenance.
38m mast, 6m workover floor
A 38m clean-height lattice mast carries the 5×6 hoist over a 6m drilling floor, giving headroom for the long stands and BOP stack that super-deep programs require.
280kN fast-line pull at 450rpm
The drawworks delivers 280kN on the fast line and drums to 450rpm, turning the twin packs combined torque into both hard pull and an acceptable trip speed on 6500m drill-pipe strings.
8000m tubing / 6500m DP envelope
Rated workover reaches 8000m on 73mm tubing and 6500m on 88.9mm drill pipe, the super-deep window between the 550 class and the ten-thousand-meter 850 rig.
14×8 carrier for super-deep clusters
A 14×8 self-propelled all-terrain chassis carries the twin-power rig as one road load, reaching dispersed super-deep clusters over high-altitude, muddy or desert access without a separate heavy-haul spread.
| Product | 750HP Workover Rig |
|---|---|
| Product line | Workover Rigs |
| The depth of workover | 8000m (73mm tubing) 6500m (88.9mm DP) | |
| The max. loading | 1800kN | |
| The type of traveling system | 5×6 | |
| Diameter of rope | Φ32 | |
| Engine | CAT C15/540 bhp, two sets | |
| The model of gear box | Allison M5620AR, two sets | |
| Mast | Clean height | 38m |
| The max. static loading | 1800kN | |
| Draw work | The max. pull of fast line | 280KN |
| Diameter of wire line | 32mm | |
| The max. rotate speed | 450rpm | |
| Drilling floor | Height | 6m |
Application
Where this equipment is used.
- Super-deep workover on 73 mm tubing strings to 8000 m and 88.9 mm drill pipe to 6500 m, where the 1800 kN hook rating carries the full casing string.
- Integral casing and tubing replacement, stuck-pipe fishing and batch plug-milling on 8000 m-class wells, using the 5×6, Φ32 mm hoist and 280 kN fast-line pull.
- Long-cycle heavy overhaul on clusters of deep wells, with the twin CAT C15 packs keeping the drawworks running while one engine is under service.
- Campaign relocation between dispersed super-deep wells: the 14×8 all-terrain chassis moves the rig as one road load, mast lowered and outriggers stowed.
- High-angle and horizontal well intervention where the 38 m mast and 6 m floor give the headroom for long stands and a stacked BOP.
- Plateau, desert and muddy access routes common to deep-block programmes, with chassis and coating provisions configured for the site climate.
Next step
Send the operating requirement.
For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.
Send an InquiryConfiguration
Options for a matched equipment scope.
Available configurations can be matched to the equipment model, operating conditions and project requirements.
- Hook and hoist margin: confirm the hook rating, line arrangement and mast static load against the heaviest casing string in the programme.
- Power redundancy: select the twin-pack layout (two CAT C15 through Allison M5620AR) or confirm the single-engine option if duty cycles are light.
- Well-control fit: specify the BOP stack height, choke manifold and floor layout to match the 38 m mast clearance and 6 m floor.
- Climate provisions: low-temperature start, heat preservation and coating are configured to the operating site and stated in the quotation.
- Monitoring package: real-time drawworks load, line speed and engine status can be added for the reporting requirements of the project.
- Documentation and training: operation and maintenance manuals, factory test report and first-period spare list are included; commissioning and operator training can be arranged.
Buyer questions
Frequently asked about this equipment.
Buyers evaluating the 750HP rig usually ask about the change from the 650HP class in hoisting and drive scope.
What core upgrades does the 750HP XJ750 rig have compared with the 650HP model?
The XJ750 breaks from the single-engine layout: it runs twin Caterpillar C15 packs, each through its own Allison M5620AR, and lifts a 1800kN hook on a 5×6, Φ32mm purchase under a 38m mast with a 6m floor. Rated workover climbs to 8000m on 73mm tubing and 6500m on 88.9mm drill pipe, beyond the XJ650 envelope, while the twin-power redundancy adds uptime on long super-deep campaigns.
Can the XJ750 rig adapt to high-altitude and ultra-complex terrain relocation?
The 14×8 all-terrain carrier moves the whole twin-power rig as one integral load: mast lowered, outriggers stowed, it drives between super-deep cluster wells on high-altitude plateau, desert or muddy access without auxiliary transport. Because the drawworks and 6m floor stay rigged, the next well on the cluster starts immediately after arrival.
What is the standard working depth of the XJ750 workover rig?
The standard XJ750 reaches 8000m in workover on 73mm tubing and 6500m on 88.9mm drill pipe, bounded by the 1800kN hook and 1800kN mast static rating on the 5×6, Φ32mm hoist. Where a field program runs heavier casing or longer strings, the hoisting and floor configuration is set at order time and the verified envelope recorded in the test report.
What are the main advantages of the 750HP XJ750 rig?
Two practical advantages follow from the twin-power layout. First, uptime: with the C15 packs split across two Allison transmissions, a service stop on one engine does not stop the hoist, which matters on long campaigns where a single-power rig would idle. Second, spares and training: both engines follow the same C15/M5620AR catalog, so a fleet already running the 450HP and 550HP units carries the parts and the crew skill for the XJ750. The 1800 kN hook and 38 m mast are sized for 8000 m of 73 mm tubing or 6500 m of 88.9 mm drill pipe, and floor options are fixed at order time and recorded in the factory test report.
What after-sales services are provided for the XJ750 rig?
The XJ750 ships with installation drawings, operation and maintenance manuals, and a first-period spare list covering the Φ32mm line and the twin C15 / M5620AR drivetrain. Remote guidance is free for the life of the rig, and the twin-pack architecture means a standard C15/M5620AR parts catalog supports both engines. On-site commissioning and senior operator training are provided for the start of a key super-deep campaign.
Procurement information
Ordering this equipment.
Commercial terms are confirmed in the quotation for the exact configuration, quantity and destination.
Certification & standards
Manufactured to API 4F and API 7K at the Jingzhou super-heavy line; the 38m mast is proof-loaded to its 1800kN static rating, and the drawworks is verified at 280kN fast-line pull and 450rpm with both CAT C15 / Allison M5620AR packs tested under load before dispatch. Manufactured under ISO 9001:2015 quality management. Certificate scope is listed in the quotation.
Documentation
Operation manuals, spare-parts catalog and factory acceptance test report are supplied in English and Chinese; on-site commissioning and operator training can be arranged at the Jingzhou plant or at the well site.
Lead time
Confirmed in the quotation according to configuration, quantity and destination.
Warranty & after-sales
Manuals, conventional spare parts and remote technical guidance are included; on-site commissioning and operator training can be arranged on request.
Payment & delivery
Payment schedule, Incoterms, port and packaging are agreed in the sales contract.
Spare parts
A recommended spare-parts list for the first operating period is provided with the quotation.
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