Fault Diagnosis Model and Application of Water Injection Well Based on SPC Rules and Real-time Data Fusion

Based on the Extended SPC rules and real-time data fusion, the operating fault diagnosis model and application research of water injection wells were carried out. The historical operating parameters of water injection wells were studied, a multi-parameter rule fault chart was established, and the weight factors of fault diagnosis parameters were obtained based on expert Pcores. A operating fault diagnosis model of water injection wells based on SPC rules and real-time data fusion was constructed. The example analysis shows that the model has good adaptability in Bohai oilfield, can diagnose the fault of water injection wells in real time, quantitatively and accurately, and improves the intelligent level of real-time fault diagnosis of water injection wells.