The Land AC VFD Drilling Rig ZJ50DB is a modular skid mounted full AC variable frequency land drilling rig, designed for 4000 5000 m deep well drilling operations.
The Land AC VFD Drilling Rig ZJ50DB is a modular skid mounted full AC variable frequency land drilling rig, designed for 4000 5000 m deep well drilling operations. Complying with API 4F, API 7K and ISO9001 international standards, major assemblies adopt independent skid split configuration, suitable for containerized sea land multimodal transport for overseas projects. This rig is widely applied for on land deep conventional oil gas, tight oil, shale gas and deep geothermal well drilling. It can sustain long term high load continuous drilling and is preferred fixed pad equipment for large scale domestic and international oilfield development.
Derrick, box type substructure, drawworks, power unit and control cabin are divided into independent skid modules. Each module can be disassembled separately for container shipping, meeting cross border project logistics constraints.
Drawworks, rotary table and main mud pump are driven by separate AC variable frequency motors. It realizes stepless speed torque adjustment, delivering precise control during drilling, reaming and high weight drill string tripping processes.
Large K type open front derrick and heavy duty box substructure are validated by multi condition finite element fatigue analysis, resisting structural deformation under repeated maximum hook load cycles for deep well jobs.
Integrated control cabin realizes full range drilling parameter acquisition, fault alarm and safety interlock protection. Operators finish core drilling operations indoors, improving working comfort and site safety performance.
Skid on ground installation reduces requirements for special site foundation. Key wearing parts adopt global oil field general specifications, convenient for spare parts stocking and field overhaul worldwide.
| Nominal Drilling Depth | 5000 m (114 mm drill pipe) |
|---|---|
| Maximum Static Hook Load | 3150 kN |
| Main Drawworks Rated Power | 1100 kW |
| Rotary Table Model | ZP495 |
| Overall Drive Mode | Full AC VFD Drive |
| Derrick Type | K type Open front Derrick |
| Working Ambient Temperature | -40 C ~ +55 C |
| Executive Standard | API 4F, API 7K, ISO9001 |
The ZJ50DB occupies the mainstream 5000 m slot of the AC VFD land fleet: the default fixed-pad workhorse between the 4000 m entry unit and the 7000 m ultra-deep class. It rates 5000 m on 114 mm drill pipe, a 3150 kN static hook load and an 1100 kW drawworks, with a ZP495 rotary table — the larger bore drive that makes it the better fit for deep conventional oil, tight oil, shale gas and deep geothermal programmes on large fixed pads. Independent skid-split modules keep each assembly within container limits, and standardized wearing parts keep global spares stocking simple.
When you request a quote, the two parameters that decide the build are your heavy-casing landing weight and the bore requirements of your rotary shouldered connections — that ZP495 drive is the detail which distinguishes this skid from the narrower ZP375 variant. Also confirm the pad power-supply voltage and frequency, whether -40 °C low-temperature anti-brittleness treatment is required, and if the solid-control and high-pressure mud-pump package should be quoted as one rig package.
Units dispatched from our Jingzhou works leave with the full export documentation set prepared for customs clearance. We quote on request and tailor each package to the skid-split layout your road and sea corridors can accept.
Optional desert dust sand proof package and low temperature anti brittle material modification for cold region and high dust working sites.
Customize voltage & frequency for various national grid standards; hazardous area explosion proof electrical assemblies are available as option.
Adjust outer outline of each skid module to fit standard container dimensions for sea freight transportation.
Supporting high-pressure mud pump, full mud circulation system and solid control skid package can be supplied as integrated solution.
Support user specified painting color, brand logo marking and project dedicated full spare-parts kit supply.
Related guides: AC VFD vs SCR DC vs mechanical drive comparison and after-sales support and spare parts.
Tell us your target depth, hook load and drive type; our engineers reply within 24 working hours.
Use the official contact information for model selection, specification discussion, and project inquiry.
Submit Product Inquiry