Research Article
Calculation Method for Inflow Performance Relationship in Sucker Rod Pump Wells Based on Real-Time Monitoring Dynamometer Card
| Number | Dynamometer card | Identification results | Bottom hole flowing pressure (MPa) | Fluid production (m3/d) | Measured | Calculated | Error | Measured | Calculated | Error |
| 1 | | Normal | 8.2 | 8.5 | 3.66% | 29.1 | 29.6 | 1.72% | 2 | | Normal | 7.8 | 8.0 | 2.56% | 37.6 | 35.3 | 6.12% | 3 | | Abnormal | 7.1 | — | — | 43.2 | — | — | 4 | | Normal | 6.6 | 6.8 | 3.03% | 46.5 | 47.3 | 1.72% | 5 | | Normal | 5.6 | 5.4 | 3.57% | 60.1 | 58.9 | 2.00% | 6 | | Normal | 4.0 | 4.2 | 5.00% | 65.8 | 67.1 | 1.98% | 7 | | Normal | 2.9 | 2.8 | 3.45% | 76.1 | 74.8 | 1.71% | 8 | | Normal | 1.4 | 1.5 | 7.14% | 78.7 | 80.4 | 2.16% | Average | | | | 4.06% | | | 2.49% |
|
|