1470kN hook rating
Maximum load is 1470kN on a 4×5 traveling system strung with Φ29mm (1 1/8″) drill line over eight lines, the rated margin for integral ultra-deep casing work and batch stuck-pipe salvage.
Workover Rigs
650HP Workover Rig
The XJ650 (XJ1600) is the fleet's flagship heavy rig, rated at a 1470kN maximum load on a 4×5 traveling gear reeved with Φ29mm, 1 1/8″ drill line over eight lines. It is powered by a Caterpillar C18 through an Allison M6620AR under a 35m hydraulic telescopic lattice mast that raises at 1.4 m/s, and it carries a 210kN fast-line pull on the drawworks. The depth envelope runs to 7000m on 2-7/8″ drill pipe, 5500m on 3-1/2″ pipe and up to 8500m on tubing, and uniquely in this class it also drills to 2000m on 4 1/2″ drill pipe, so it can open and then work over a well from the same carrier. A 12×8 all-terrain chassis moves the whole spread between super-deep clusters as one unit.
Core advantages
Designed around the operating requirement.
35m telescopic mast, 1.4 m/s raise
A 35m double-section hydraulic telescopic mast sets itself at 1.4 m/s on location, cutting rig-up time versus a pinned lattice while holding the 1470kN class load.
CAT C18 with Allison M6620AR
The Caterpillar C18 drives through an Allison M6620AR automatic, the same heavy-duty drivetrain architecture used across the ultra-deep fleet for predictable full-load pulling.
2000m drill capability on 4 1/2″ DP
Beyond workover, the rig drills to 2000m on 4 1/2″ drill pipe, letting one carrier spud a shallow-to-medium hole and then service it without bringing a separate rig.
210kN fast-line pull, eight-line purchase
The drawworks pulls 210kN on the fast line through an eight-line reeving, turning that winch pull into the 1470kN hook rating needed for 7000m strings.
12×8 chassis for super-deep moves
A 12×8 self-propelled all-terrain chassis carries the telescopic mast and drawworks as one road load, reaching dispersed super-deep clusters over mountain, mud and desert access without auxiliary hoisting.
| Product | 650HP Workover Rig |
|---|---|
| Product line | Workover Rigs |
| Drill depth (4 1/2” DP) m | 2000 |
|---|---|
| Max fast-line pull kN | 210 |
| Max load kN | 1470 |
| Drill line Diameter mm (in)/effective number n | Φ29 (1 1/8") /8 |
| Mast hoisting speed m/s | 1.4 |
| Traveling system type | 4×5 |
| Engine | CAT C18 |
| Transmission | ALLISION M6620AR |
| Clearance height of mast m | 35m |
Application
Where this equipment is used.
- Deep workover duty: 7000 m on 2-7/8 in drill pipe, 5500 m on 3-1/2 in pipe and up to 8500 m on tubing, with a 1470 kN maximum load.
- Drilling and workover on the same carrier: the rig also drills to 2000 m on 4-1/2 in drill pipe, opening a well and then servicing it without a second spread.
- Heavy casing work and rotary-assisted pulls where the 4×5, Φ29 mm hoist and 210 kN fast-line pull set the working envelope.
- Super-deep cluster programmes where the 12×8 all-terrain chassis relocates the rig between wells as one road load.
- Long-cycle overhaul on mature deep blocks where the CAT C18 / Allison M6620AR drivetrain sustains repeated hoisting cycles.
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: set the 1470 kN rating, 4×5 line arrangement and 35 m mast static load against the heaviest planned string.
- Drilling option: confirm the 2000 m drilling rating and circulating scope if the carrier will open wells before servicing them.
- Rotary and floor: ZP175-type table and floor height matched to the casing programme and BOP stack.
- Well-control interface: mast clearance and floor layout checked against the BOP and handling equipment for the region.
- Winter and heat provisions on 650HP Workover Rig: low-temperature start, heat preservation and coating matched to the region.
- Documentation for 650HP Workover Rig: manuals, factory test report and first-period spares included; commissioning and operator training arranged.
Buyer questions
Frequently asked about this equipment.
Questions about the 650HP rig cover the step from the 550HP class in hook load, mast and dual-power options.
What core upgrades does the 650HP XJ650 rig have compared with the 550HP model?
The step from the XJ550 to the XJ650 is hook and mast margin rather than a new power class: the maximum load rises to 1470 kN on the same 4×5, φ29 mm eight-line arrangement, the mast goes to 35 m and raises at 1.4 m/s, and the C18/M6620AR drivetrain is retained from the 550HP fleet so the service pattern is shared. Depth runs to 7000 m on 2-7/8″ drill pipe, 5500 m on 3-1/2″ drill pipe and 8500 m on standard tubing, with a separate 2000 m drilling rating on 4 1/2″ pipe. For programs that need the deeper tubing rating or a faster mast, the XJ650 adds those without a new engine platform.
Can the XJ650 rig adapt to ultra-complex terrain and long-distance cross-region relocation?
Yes. The 12×8 all-terrain chassis carries the rig as one integral road load: with the 35 m mast lowered and outriggers stowed, it moves between super-deep clusters over muddy, gravel or hilly access without auxiliary transport. Because the drawworks and 4×5 traveling gear stay rigged, the unit can resume work at the next well without a re-rigging spread, which is the practical benefit for operators moving between dispersed wells.
What is the standard working depth of the XJ650 workover rig?
Workover depth is string-dependent: 7000m on 2-7/8″ drill pipe, 5500m on 3-1/2″ drill pipe, and up to 8500m on standard tubing, bounded by the 1470kN maximum load on the 4×5, Φ29mm eight-line hoist. The rig separately drills to 2000m on 4 1/2″ pipe. Power and hoisting can be re-matched to site conditions at order time, with the verified envelope in the test certificate.
What makes the 650HP XJ650 rig different at this hook class?
The XJ650's distinctive feature at this hook class is the mast: the 35 m hydraulic telescopic lattice mast raises at 1.4 m/s, which shortens rig-up between wells on a cluster compared with a fixed lattice unit. The C18/M6620AR drivetrain and telescopic-mast hydraulics are shared across the ultra-deep fleet, so the spare catalog covers the unit without a dedicated service pool. The 1470 kN rating on 7000 m of 2-7/8″ drill pipe covers deep casing pulls and fishing that sit beyond the 550HP envelope.
What after-sales services are provided for the XJ650 rig?
Each unit ships with installation drawings, operation and maintenance manuals, and a first-period spare list covering the φ29 mm (1 1/8″) line, C18 and M6620AR service parts. Remote guidance is free for the life of the unit; because the C18/M6620AR drivetrain and telescopic-mast hydraulics are shared across the ultra-deep fleet, spares follow a common catalog. On-site commissioning and operator training can be scheduled for the first field deployment.
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 shop; the 35m telescopic mast is cycled and proof-loaded to the 1470kN class, and the 210kN fast-line pull and eight-line Φ29mm reeving are checked on the running drawworks 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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