1. It adopts 12×8 self-propelled chassis.
2. The main brake of winch adopts hydraulic disc brake system and its auxiliary brake adopts Eaton pneumatic water-cooled disc auxiliary brake.
3. Finite element analysis and design pf mobile oil drilling rigs is adopted on Mast, Frame and drawworks to reduce the weight of the rig.
4. It adopts 5+5R anti-reverse rotary table transmission device.
5. Parallelogram substructure of mobile drilling rigs has stable structure and is easy to install.
Applications
The 650HP truck-mounted drilling rig is a heavy-duty mobile drilling unit built for the deepest, most complex well operations. It's one of the largest self-propelled drilling rigs available — engineered for major oil fields where maximum power in a mobile package is required.
- Primary use: deep well drilling, heavy workover operations, well testing, salvage, and pump inspection on major deep oil fields.
- Built for large drilling contractors operating on the deepest onshore oil fields across the Middle East, Russia, and Central Asia.
- The rig you deploy when even the 550HP model doesn't have enough capacity, but you still want the mobility of a truck-mounted unit.
Maximum Power in a Mobile Package
There's a point where you need more power than what a standard truck rig can offer — deeper wells, heavier casing, more demanding fishing operations. The 650HP rig delivers that extra power, while still retaining the mobility that makes truck-mounted rigs so cost-effective.
With 1,470 kN of hook load and a 12×8 chassis, this rig is pushing the limits of what a truck-mounted drilling rig can achieve. The finite element optimized design and multiple patented technologies make it possible to pack this much power into a mobile package — saving weight without sacrificing strength.
This is the rig you choose when you need drilling-rig-level performance on deep, complex wells, but you can't justify the weeks of rig-up time and high mobilization costs that come with a skid drilling rig.
Choosing the Right Truck-Mounted Rig
For very deep wells (6,000m+) or operations involving extremely heavy drilling and workover work, the 650HP unit delivers near-skid-rig-level power in a mobile package.
If your wells are shallower and operations are less demanding, the 550HP Truck-Mounted Rig offers a more cost-effective solution. For even deeper drilling work, you'll need to move up to our skid-mounted drilling rigs.
FAQs
Q: What's the difference between this and the 550HP model?
A: The 650HP model has a larger 12×8 chassis (vs 10×8 on the 550HP) and a higher 1,470 kN hook load (vs 1,350 kN) — for even heavier duty on deeper wells.
Q: What's the maximum hook load?
A: The maximum static hook load is 1,470 kN — one of the highest ratings for any self-propelled drilling rig in China.
Q: What chassis is used?
A: This rig is built on a 12×8 self-propelled workover rig chassis — the largest chassis we use for truck-mounted drilling rigs.
Q: When should I choose this rig over a skid-mounted rig?
A: Choose this rig when you need maximum mobile drilling power on deep wells, but you still need the mobility and fast rig-up times that a truck-mounted unit provides.
- Road transport at normal highway speeds without special escort permits in most regions
- The integrated truck chassis means no separate rig move logistics are required
- Faster rig-up means more drilling time per month, which directly improves project economics.
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Fast Mobilization for Multi-Well Pads
A hp truck-mounted rig is built for fields with scattered wells, where non-productive time between wells cuts heavily into operation margins. The integrated truck chassis means the rig can drive directly between well sites without needing disassembly or separate heavy haul trucks.
When moving between pads on the same field, a standard rig-up takes about , including extending the outriggers, raising the mast, and pressure-testing the circulation system. For most onshore fields, transport dimensions are , which means crews can plan daily moves without waiting for road permits or closing public roads.
The rig is rated for drilling depths up to meters, which covers the majority of shallow to medium-depth development wells in most onshore oil fields. This makes it a cost-effective choice for workover campaigns and infill drilling where the rig needs to move to a new location every few days.
FAQs
Q: What is the pulling capacity of the hoisting system?
A: This mid-size truck rig is rated for hook loads up to 135 tons, which covers most medium-depth well servicing and drilling work.
Q: Can the derrick be operated in high wind conditions?
A: The derrick has a rated wind speed for drilling operations and a survival wind speed when in the parked position, as detailed in the operation manual.
Q: Do you supply the complete rig ready to drive on the highway?
A: Yes, we supply the complete rig as a road-legal truck unit, with all lighting, mirrors, and safety equipment required for on-road transport.
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Drill line Diameter mm (in)/effective
number n
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Φ29 (1 1/8")
/8
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Mast hoisting speed m/s
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1.4
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Traveling system type
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4×5
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Engine
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CAT C18
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Transmission
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ALLISION M6620AR
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Clearance height of mast m
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35m
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