Parameter diagnosis and analysis method for electric submersible pump well working condition instrument

Abstract

The invention discloses a parameter diagnosis and analysis method for an electric submersible pump well working condition instrument. The method comprises steps as follows: a parameter curve chart of a typical electric submersible pump well fault type is drawn firstly; six groups of parameters including pump inlet temperature, motor winding temperature, pump inlet pressure, pump outlet pressure, leakage current and motor variation frequency are collected by the working condition instrument; pump working condition data are recorded and monitored by a recording instrument in real time; when an electric submersible pump well breaks down, the fault type is determined after comparison of a parameter curve acquired by the working condition instrument and the parameter curve chart. According to the parameter diagnosis and analysis method for the electric submersible pump well working condition instrument, the parameter curve chart of the typical electric submersible pump well fault type is drawn, so that when the electric submersible pump well breaks down again, the fault type can be determined rapidly and accurately, the working condition diagnosis accuracy rate and the fault recovery rate of the electric submersible pump are increased, meanwhile, by virtue of comparison with the chart, pre-warning and treatment are performed in time, the pump inspection period of an oil well is prolonged, the frequency of pump inspection and well repair is reduced, and the purpose of cost reduction and benefit increase is achieved.

Description

technical field [0001] The invention relates to the field of petroleum exploitation, in particular to a method for diagnosing and analyzing parameters of an electric submersible pump well operating condition instrument. Background technique [0002] In recent years, the working condition diagnosis technology of electric submersible pump has been developed to a great extent, and it is an important means to solve the abnormality or fault of electric submersible pump well. "China Petroleum and Chemical Industry" 2013 Issue 03, the authors are Wang Hui, Tan Chaodong, Tan Chaoqin, Gao Gao, Hu Changhong, the title of the paper is a review of the diagnosis and analysis methods of electric submersible pump wells, and the paper introduces three diagnostic methods for electric pump wells , which are empirical method, theoretical analysis method and comprehensive parameter online diagnosis method respectively. Although it can solve certain problems, there are still some deficiencies. ...

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Problems solved by technology

Although it can solve certain problems, there are still some shortcomings. Traditional empirical methods are difficult to obtain comprehensive and accurate results, which has a lot to do with the technical level of engineers; for theoretical methods, because they have a certain theoretical basis, the diagnostic results It is relatively close to the real situation, but the system application personnel must have a good theoretical basis; although the online diagnosis method of the comprehensive parameters of the electric pump well can collect and analyze the collected comprehensive parameters in real time, it provides a more intuitive way for the working condition diagnosis of the electric submersible pump. However, there is no systematic research on the application of the parameters of the electric submersible pump condition instrument to the diagnosis of the electric submersible pump condition, and no standard template has been formed.

The diagnostic analysis process is also time-consuming and laborious, and it is also prone to misdiagnosis

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