The ZJ70-4500D Rig is a heavy-duty ultra-deep well DC electric drilling rig, strictly designed and manufactured in accordance with API Spec 7K and API Spec 8C international petroleum industry standards. Professionally optimized for 7000-meter ultra-deep well drilling operations, this skid-mounted high-power drilling unit adopts mature DC electric drive system, 45m high-strength K-type derrick, heavy-load 4500kN hoisting system and integrated intelligent centralized control platform. It fully covers core working procedures including ultra-deep well drilling, high-load string tripping, large-diameter casing running, high-pressure wellbore circulation, well testing and full-process well completion. Matched with 2000HP high-power drawworks, large-displacement mud pump assembly and Φ952.5mm heavy-duty rotary table, the rig delivers stable ultra-high torque output and continuous heavy-load operation capacity. Featuring electric stepless speed regulation, low vibration, high efficiency and precise drilling control, it perfectly adapts to complex ultra-deep formations, high-pressure high-temperature wellbore conditions and long-cycle intensive drilling tasks. As the core mainstream equipment for global deep and ultra-deep oil and gas resource development, the ZJ70-4500D rig provides safe, efficient and stable drilling solutions for large-scale ultra-deep well exploration, reservoir development and cluster well batch construction projects in harsh oilfield environments.
Rated for 7000m ultra-deep well drilling with 4-1/2” drill pipe and 6000m drilling depth with 5” drill pipe, equipped with a maximum static hook load of 4500kN. The matched 12-line hoisting system and 1524mm large-diameter traveling sheave structure provide ultra-strong heavy-load bearing and tripping capacity, fully meeting the high-load operation demands of ultra-deep well long-string tripping and large casing running.
Adopts reliable DC electric drive system with independent electric control and compound drive modes optional. It realizes full-range stepless speed regulation for rotary table and drawworks, featuring stable power output, flexible speed adjustment and no rigid mechanical impact. The system delivers higher transmission efficiency and lower operation noise compared with traditional mechanical rigs, enabling precise drilling parameter control for complex ultra-deep formations.
Equipped with 45m high-strength K-type integral derrick and reinforced base structure, processed via integral welding and overall stress relief treatment. All key load-bearing components undergo strict NDT non-destructive testing, with excellent wind resistance, structural rigidity and deformation resistance. The optimized balanced hoisting and vibration reduction structure ensures long-term stable cyclic heavy-load operation without structural fatigue or deformation.
Configured with 2000HP (1470kW) high-power drawworks and supporting large-displacement high-pressure mud pump assembly. The high-torque rotary table supports high-strength rock breaking and stable rotary drilling under hard and complex formation conditions. The efficient circulating system ensures sufficient wellbore flushing and cuttings carrying capacity, effectively avoiding downhole blockage and improving ultra-deep well drilling efficiency.
All core electric control, hydraulic and transmission components adopt wide-temperature anti-aging, high-temperature resistant and fully sealed dust-proof configuration. The whole machine is coated with enhanced heavy-duty anti-corrosion, sand-proof and weather-resistant protective coating, supporting stable continuous operation within -40℃ ~ +55℃. It perfectly adapts to extreme working conditions such as desert ultra-high temperature, Gobi strong wind-sand erosion, high-pressure high-temperature downhole environments and high-altitude cold plateaus.
Equipped with centralized intelligent control cabin and full drilling parameter monitoring system, supporting real-time data collection, storage, printing and remote transmission. The modular standardized structural design improves the universality of wearing parts, simplifies daily inspection, lubrication and component replacement procedures. The electric drive structure reduces mechanical failure points, effectively lowering long-term operation and maintenance costs and equipment downtime.
| Product | ZJ70 4500D Rig |
|---|---|
| Product line | Drilling Rigs |
| Nominal drilling depth (114mm DP) | 4500～7000m | Open diameter of rotary table | φ952.5mm (37.5” ) |
| (127mmDP) | 4000～6000m | Qty.× power of diesel engine | 4×1200kW |
| Max.hook load | 4500kN | Shift of drawwork | stepless speed regulation |
| Traveling system | 6×7 | Height of substructure | 10.5m |
| Dia of drill line | φ38mm | Mast type and height | Ktype, 45.5m |
| Qty.× power of mud pump | 2×1600hp | Drawworks power | 1470kW（2000hp） |
For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.
Send an InquiryAvailable configurations can be matched to the equipment model, operating conditions and project requirements.
The following questions address common equipment selection and operating considerations.
The ZJ70-4500D heavy-duty electric drilling rig has a rated maximum drilling depth of 7000 meters with 4-1/2” drill pipe and 6000 meters with 5” drill pipe, specially developed for ultra-deep oil and gas well exploration and development projects.
Different from mechanical and diesel-driven rigs, the DC electric drive system realizes full stepless speed regulation with smooth startup and operation, no rigid impact and precise parameter control. It features higher transmission efficiency, lower noise and energy consumption, and more stable power output, perfectly suitable for long-cycle ultra-deep well high-intensity drilling operations.
The rig has ultra-strong comprehensive adaptability, capable of coping with hard rock formations, complex interbedded formations and high-pressure high-temperature ultra-deep wellbore conditions. It supports continuous stable heavy-load operation in desert high temperature, Gobi wind-sand, high-altitude low-temperature and muddy well sites, meeting full-climate ultra-deep well construction demands.
It adopts reinforced 45m K-type derrick and ultra-high load hoisting system with strict NDT flaw detection for all load-bearing parts. The mature DC drive system delivers stable torque and power output, while the multi-level safety protection and circulating lubrication system reduce component wear and operational failures, ensuring long-cycle stable heavy-load drilling.
Yes. We support personalized customization of drive mode, auxiliary system, safety protection grade, intelligent monitoring function and environmental adaptation configuration, matching different ultra-deep well formation conditions, regional climates and engineering construction standards.
We provide high-quality API-standard ZJ70-4500D Ultra-Deep Well DC Electric Drilling Rig with decades of professional petroleum equipment R&D and manufacturing experience. Our rigs adopt mature DC electric drive technology, heavy-duty reinforced structural design and high-power matching system, featuring ultra-deep drilling capacity, stable heavy-load operation, precise control and excellent harsh environment adaptability. The intelligent monitoring system and modular design ensure high construction efficiency and low comprehensive maintenance cost. Strict raw material inspection and full-scale factory performance testing guarantee reliable product quality and long service life. We deliver one-stop full-process solutions including personalized scheme customization, standardized production, global logistics and on-site installation & commissioning guidance, providing core heavy-duty equipment support for global ultra-deep oil and gas resource development projects.
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