Research on the Fault Prediction Method of Rod Pumping System in Directional Wells

摘要：

On the bases of the serious problems of using suckerrod pumping system in directional wells, this paper took the effect of the following factors into consideration, such as bending stiffness of the sucker-rod string, viscous damping for ceof fluid, colomb friction force acting on the string from the tubing, trajectory of the well bore etc., established a model for fault diagnosis of sucker-rod pumping system. Based on the precise time-integration method for structural dynamic systems, a precise direct integration method was proposed for the wave equation in the fault diagnosis of sucker-rod pumping systems, and the fault diagnosis system of sucker-rod pumping system which was based on artificial neural networks was developed. This study would help discovering operating condition of sucker-rod pumping system accurately and opportunely, reducing the oil production cost, raising the economic benefit of oilfield and improving the information of enterprise based degree of oil field. The special numerical examples were calculated by this fault diagnosis system, the diagnosis system could make the fault diagnosis of sucker-rod pumping system by browser swiftly and accurately.

关键词： directional well sucker-rod pumping fault diagnosis mechanics model neural network precise time-integration

作者: LIU Jingcheng WANG Hongtu LI Wenhua ZENG Shunpeng QI Zhilin

作者单位: Key Laboratory for Exploitation of Southwestern Resources and Environmental Disaster Control Enginee Key Laboratory for Exploitation of Southwestern Resources and Environmental Disaster Control Enginee Institute of Oil and Gas Engineering,Chongqing University of Science and Technology, Chongqing 40133

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 431-436

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）