The ZJ70 4500DB full AC variable frequency land drilling rig belongs to heavy duty deep well drilling unit, engineered for 5000 7000 m deep and ultra deep on land well construction.
The ZJ70 4500DB full AC variable frequency land drilling rig belongs to heavy duty deep well drilling unit, engineered for 5000 7000 m deep and ultra deep on land well construction. Designed and certified per API 4F, API 7K and ISO9001 requirements, this rig targets deep conventional oil gas, tight oil and shale gas block development. Equipped with high capacity AC VFD drive system and extra high strength derrick substructure assembly, it is capable of sustained heavy load operation under complex deep stratum conditions. Widely used in large scale energy blocks across desert, Gobi and high altitude regions, it serves as core equipment for national level deep well exploration projects.
Drawworks, rotary table and auxiliary equipment adopt separate high power frequency converters. It delivers stable high torque at low rotating speed, suppresses drilling string vibration, and improves safety when tripping pipe in deep complex formations.
Large size K type open front derrick and box type substructure are optimized via finite element fatigue calculation. The whole structure maintains high rigidity under long term maximum hook load, resisting deformation under frequent tripping operations.
Key assemblies are divided into standard container sized modules, facilitating sea land intermodal transport. It shortens rig up / rig down cycle for cluster well groups and lowers demands for large tonnage field cranes.
Centralized control cabin integrates real time drilling parameter display, automatic weight on bit control, multi layer electrical mechanical interlock protection and fault recording function, reducing human caused operating risks for long shift deep well jobs.
Critical electrical cabinets adopt sand proof, heat dissipation reinforced design for desert zones; material anti brittleness improvement available for high altitude cold areas to support year round non stop drilling cycles.
| Nominal Drilling Depth | 7000 m (114 mm drill pipe) |
|---|---|
| Maximum Static Hook Load | 4500 kN |
| Main Drawworks Rated Power | 1400 kW |
| Rotary Table Model | ZP495 |
| Overall Drive Mode | Full AC Variable Frequency Drive |
| Derrick Type | Heavy duty K type Open front Derrick |
| Working Ambient Temperature | -40 C ~ +55 C |
| Executive Standard | API 4F, API 7K, ISO9001 |
Once a well programme crosses 5000 m on a regular basis, the ZJ70-4500DB marks the ceiling before any operator steps up to the 9000 m class. It is engineered for the 5000-7000 m band: 7000 m nominal depth on 114 mm pipe, a 4500 kN static hook load and a 1400 kW drawworks over a ZP495 rotary table, certified to API 4F, API 7K and ISO 9001. The oversized K-type derrick and box substructure are sized for sustained heavy loads in desert, Gobi and high-altitude blocks, and the container-split modular layout shortens rig-up and rig-down between cluster wells.
When you submit an inquiry, lead with your planned trip speed and peak hook-load duty cycle — the 4500 kN rating in the model name is the working number contractors design casing programmes around. Also state ambient extremes (the -40 °C to +55 °C baseline already covers most desert and plateau duty), your required mud-power flow rate, and whether any foundation-piling or super-large infrastructure application on your site list needs a reinforced substructure spec.
Every package dispatched from the Jingzhou plant includes the export documentation set prepared for customs. Factory witnessing of the load and control tests can be scheduled before the skids ship.
Optional full set of low temperature anti brittle assembly, desert sand sealing & heat insulation system, and heavy duty salt fog anti corrosion coating for coastal environments.
Customizable 50 Hz / 60 Hz voltage classes, GOST compliant Russian standard electric system, and zone rated explosion proof electric components for hazardous oil gas zones.
Optional automatic pipe handling system, cloud based remote monitoring, intelligent drilling parameter optimizing module and big data fault early warning function.
Adjust module dimensions for container shipping and limited space mountain well site deployment.
Matched high pressure mud pump, full solid control system, project specific spare parts package, customer defined painting color and brand logo marking.
Related guides: AC VFD vs SCR DC vs mechanical drive comparison and after-sales support and spare parts.
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