Field Operational Status of Well Wen-119, First Oil Production Plant, North China Oilfield:

1. Compact Design with High On-Site Adaptability: The equipment features an integrated, skid-mounted design. It is compact, lightweight, and has a small footprint—reducing overall volume by 88%, footprint by 81%, and total weight by 88% compared to traditional beam-pumping units. This facilitates easy on-site transport and installation, making it highly suitable for the limited space at the Wen-119 well site. It requires no extensive foundation construction, allowing for rapid deployment and commissioning.

2. Convenient Maintenance and Reduced Operational Intensity: The Wen-119 well site is equipped with a movable hydraulic cylinder support frame. During downhole operations—such as well workovers or pump inspections—the support frame can simply be shifted aside to create the necessary workspace. This eliminates the need to disassemble or relocate the entire unit, streamlining maintenance, shortening operational time, and significantly reducing the physical labor required from on-site personnel.

3. Robust Safety and Environmental Compliance: The unit utilizes an integrated hydraulic skid-mounted system with no exposed moving parts, eliminating the mechanical hazards associated with the cranks and connecting rods of traditional beam-pumping units and reducing the need for high-altitude work. It is equipped with an intelligent monitoring system that automatically triggers alarms or initiates emergency shutdowns based on the actual production parameters of Well Wen-119, ensuring safety for both the equipment and on-site personnel. The hydraulic cylinders feature specialized, high-reliability seals that effectively prevent hydraulic fluid leakage, meeting all on-site safety and environmental protection standards.

4. Significant Energy Savings and Cost Reduction: Compared to traditional beam-pumping units operating under similar conditions, this system offers higher transmission efficiency through its direct hydraulic drive, resulting in lower energy consumption. Field measurements show a daily power consumption of 256 kWh for a single unit serving two wells. Over the course of long-term continuous production, this leads to substantial reductions in electricity costs per well, delivering significant economic benefits. 5. Comprehensive digital and intelligent management capabilities, meeting the requirements for digitized oilfield operations: The system includes a dynamic, intelligent oilfield management platform that supports remote, automated control of equipment and real-time collection of operational parameters. Management personnel can remotely monitor real-time production data and equipment status for Well Wen-119, enabling dynamic, online oversight—fully aligned with the digital oilfield development objectives of the North China Oilfield.

6. Flexible operational modes to ensure continuous production: The equipment supports switching between independent single-well operation and a "one-to-two" dual-well linked configuration. In the "one-to-two" setup, should one well require pump maintenance or workover operations, the system can rapidly transition to single-well mode. This ensures that Well Wen-119 continues to operate normally, preventing downtime caused by maintenance at an adjacent well, thereby effectively increasing the well’s operational uptime and overall oil recovery efficiency.