December 22, 2025
Wells Zhuang 1-15X and Zhuang 1-17X, First Oil Production Plant, North China Oilfield
Equipment parameters for well Zhuang 1-15X:
| No. | Item | Unit | Parameter |
|---|---|---|---|
| 1 | Rated Working Voltage | V | 380 |
| 2 | Frequency | Hz | 50 |
| 3 | Motor Power | kW | 60.5 |
| 4 | Rated Working Pressure | MPa | 18 |
| 5 | Max Flow of Main Pump | L/min | 260 |
| 6 | Max Load | kN | 120 |
| 7 | Max Stroke | mm | 6000 |
| 8 | Max Speed | m/s | 0.45 |
| 9 | Hydraulic Cylinder Weight | kg | 1200 |
| 10 | Main Unit Weight | kg | 1800 |
| 11 | Main Unit Dimension | mm | 2790×1350×2400 |
| 12 | Stroke Length | m | 0~6, stepless adjustable |
| 13 | Strokes | times/min | 0~3, stepless adjustable |
| 14 | Piston Downward Mode | Gravity | |
| 15 | Environmental Impact | None |
Operational status of wells Zhuang 1-15X and Zhuang 1-17X at the First Oil Production Plant of the North China Oilfield:
1. **Suitability for complex, ultra-deep well conditions:** Well Zhuang 1-17X is a heavy-oil well with a depth exceeding 5,000 meters and a pump setting depth of 2,303.01 meters. The actual equipment load is 97.7 kN. In a "one-to-two" configuration (one power unit serving two wells), the combined daily output for both wells is approximately 33 cubic meters of fluid, containing 20 tons of crude oil.
2. **Excellent pumping performance:** The equipment operates with high stability. It maintains smooth performance even under conditions such as high downhole pressure differentials, the presence of gas, or paraffin deposition. In actual operation, it meets the performance requirements of a Type 14 pumping unit.
3. **Significant equipment advantages:** Compared to traditional beam-pumping units, this system is much more compact—reducing total volume by 88% and footprint by 81%. It is also significantly lighter, with an 88% reduction in total weight, making installation convenient. Furthermore, it offers superior energy efficiency compared to conventional beam-pumping units.
4. **Enhanced safety and environmental protection:** The unit is a fully enclosed, skid-mounted hydraulic system with no external leakage points. This design minimizes the risk of mechanical injury and reduces the need for high-altitude maintenance work. The hydraulic pumping unit is equipped with multiple safety features—including overload, overpressure, and over-temperature protection—to ensure both operational safety and the integrity of the equipment itself.
5. **Convenient and efficient maintenance:** In the "one-to-two" configuration, the support frame can be shifted toward the rear of the wellhead during workovers, providing ample space for tasks such as pump inspection and repairs.
6. **High adaptability:** The hydraulic pumping unit requires no manual balancing adjustments. Its vertical alignment design helps minimize eccentric wear on the polished rod.
7. **Dynamic, smart-field management system:** The equipment includes an RS485 communication interface, allowing operational data to be transmitted to the PetroChina information platform via the A11 protocol, enabling remote monitoring of the unit's status.