Rod pumped well fault judgment method based on trend rule mining

• Main Authors: JING RUILIN, WEI QUANLI, YANG YAOZHONG, HU XIUTAO, ZHANG LEI, DUAN HONGJIE, CAI QUAN, BING SHAOQIANG, GUO JUN, TIAN FENG
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention belongs to the technical field of oil well exploitation dynamic monitoring, and particularly relates to a rod-pumped well fault judgment method based on trend rule mining. The trend rule of the rod-pumped well is excavated, so that a new thought is provided for fault diagnosis of the rod-pumped well. The method aims to express data association of high-correlation real-time data of the rod-pumped well in a simple and direct trend rule mode from a large amount of complex data of the rod-pumped well. And by means of the integrated dynamic sliding window and data difference technology, the fault trend rule of the rod-pumped well is extracted, and finally the fault judgment accuracy of the rod-pumped well is improved. The rod-pumped well fault judgment method based on trend rule mining comprises the steps that A, an abnormal sample feature set of a rod-pumped well is acquired; b, discretizing an abnormal sample feature set of the rod-pumped well by adopting a dynamic sliding window and a difference s