Capture the well state
Load, displacement, speed, motor temperature and electrical parameters are collected in real time.
Intelligent pumpjack control, matched to real well conditions.
Integrated variable-frequency control, condition monitoring, equipment protection and remote operations for stable, visible and maintainable oil production.
Adaptive VFD control
Well-condition monitoring
SCADA-ready operations
IP66 outdoor protection
Fixed-speed operation cannot keep pace with a changing well.
Traditional pumping units running at a fixed frequency cannot continuously match fluid supply and load changes. The result can be unnecessary energy use, mechanical shock and harder-to-diagnose equipment issues.
Wolong connects the drive, sensors, controller, HMI and remote communications into one control system. Output frequency and strokes per minute can be adjusted according to pump fillage, production load and operating status.
Interpret operating conditions
Pump fillage, production load, balance status and alarm history provide a clearer view of performance.
Adjust output dynamically
The variable frequency drive changes output frequency and stroke rate to better match current conditions.
Operate locally or remotely
The HMI supports local work while industrial networking or wireless communications connect to SCADA.
One system from the motor to the control room.
Designed around the day-to-day needs of field operators, maintenance teams and production managers.
Adaptive variable-frequency control
Dynamic frequency adjustment reduces unnecessary running. Soft start lowers starting current and mechanical shock for smoother starts and stops.
Monitoring and fault diagnosis
View stroke rate, stroke length, polished-rod load, pump fillage, motor balance and electrical parameters. The system can assist with identifying belt slip, pump-efficiency anomalies, rod breakage and sticking.
Multi-level equipment protection
Short circuit, phase loss, ground fault, overcurrent, overvoltage, overload, overspeed and overtemperature protection are combined with cabinet and motor monitoring.
Local and remote maintenance
The HMI supports parameter setting, alarm review and operating records. SCADA connectivity enables centralized status monitoring, data acquisition and device management.
Built for harsh, outdoor well sites.
The outdoor cabinet is designed for high temperature, dust and polluted environments. IP66 protection, forced-air cooling, cabinet environment monitoring and thermal-simulation-led design support long-term field operation.
- High-temperature and high-dust outdoor locations
- Remote or unattended well sites
- New pumping-unit projects and fixed-speed retrofits
- Digital oil fields and multi-well monitoring projects
More visibility, smoother operation and faster maintenance.
Reduce unnecessary energy use
Adjust operation according to well conditions instead of relying on one fixed setting.
Limit mechanical stress
Softer starting and better-matched operation help reduce shock and wear.
Find issues earlier
Operating data and alarms improve visibility into abnormal equipment behavior.
Simplify field work
Remote data access can reduce inspection pressure and support faster troubleshooting.
Configured around the motor, pumping unit and site automation.
Final configuration is adjusted for motor power, pumping-unit type, site power supply and automation requirements.
Input voltageThree-phase 380–480 V
Power range1–500 HP
Operating temperature−20 °C to +60 °C
Protection ratingIP66
CommunicationsEthernet, serial communication and SCADA integration
Get a control solution shaped around your operating conditions.
Share the motor rating, pumping-unit type, site power and automation requirements. Our team will help define the drive, sensors, cabinet and communications architecture.