AC VFD Drilling Rigs
Because our ZJ30DBS to ZJ90DBS rigs utilize integrated AC VFD systems with soft-start capability, this equipment delivers precise torque control and optimized power consumption during 3,000 m to 9,000 m drilling operations, cutting energy expenditure and mechanical wear by 15-20%. Because these units are fully API-certified and dimensionally interchangeable with Honghua and NOV architectures, deployment requires zero rig-floor modifications, cutting mobilization downtime by 10 days per project.
Technical Specifications
| Models | ZJ30DBS-J to ZJ90DBS |
|---|---|
| Drilling Depth | 3,000 m to 9,000 m |
| Drive Type | AC VFD (Variable Frequency Drive) |
| Configuration | Turnkey complete package |
Available Configurations
- Precise speed and torque control
- Energy-efficient operation with VFD soft-start
- Full system API certification
- Interchangeable with Honghua and NOV VFD rigs
Frequently Asked Questions
Can your OUSUN ZJ30DBS to ZJ90DBS series rigs be integrated into my existing fleet that currently uses Honghua or NOV equipment?▾
Yes, our rigs are engineered to be fully interchangeable with Honghua and NOV VFD systems, ensuring seamless operational compatibility and simplified logistics for your fleet maintenance.
What level of API certification do you provide for these turnkey packages?▾
Our entire drilling package is manufactured under full system API certification, ensuring every component meets global industry standards for safety, reliability, and regulatory compliance.
How does the AC VFD system improve torque delivery compared to traditional SCR drives?▾
The AC VFD system allows for superior, instantaneous control over speed and torque, delivering smoother power transmission that reduces mechanical stress on your drill string and increases overall drilling performance.
Are the energy efficiency claims supported by the VFD soft-start feature?▾
Absolutely; the VFD soft-start feature significantly reduces peak current draw during motor startup, minimizing power surges and decreasing your overall electricity consumption compared to legacy drive systems.
Does the ZJ90DBS model reliably support drilling depths up to 9,000 meters?▾
Yes, the ZJ90DBS is specifically designed and rated for deep-hole drilling up to 9,000 meters, featuring a robust power architecture to maintain torque consistency at maximum depth.
What is included in your 'turnkey' package for these rigs?▾
Our turnkey solution provides a fully integrated rig package including the VFD control system, drawworks, and prime movers, delivered ready-to-drill to minimize your commissioning time and onsite installation costs.
How precise is the control for complex drilling operations such as directional or horizontal wells?▾
The VFD system provides high-precision speed and torque regulation, giving your drillers the exact responsiveness needed for challenging directional and horizontal drilling profiles.
Is the ZJ30DBS-J model suitable for fast-moving, multi-well pad drilling?▾
The ZJ30DBS-J is designed for agility and precision, making it an excellent choice for pad drilling where rapid, controlled transitions and reliable equipment performance are critical to your cycle times.
How does the VFD integration impact the overall maintenance requirements of the rig?▾
By replacing complex mechanical controls with electronic VFD precision, you benefit from reduced mechanical wear and lower maintenance intensity, which ultimately extends the lifespan of your critical drilling components.
Can I request specific customizations for the VFD control interface for my drilling crews?▾
We offer modular control configurations within our turnkey packages, allowing us to align the interface with your operational preferences while maintaining the efficiency of our standardized high-performance VFD platform.