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Application of filter technique to diagnosis of sucker-rod pumping system
Author(s): 
Pages: 144-147
Year: Issue:  1
Journal: Acta Petrolei Sinica

Keyword:  sucker-rod pumpdynamometer diagramdiagnosis technologyfilter techniquerod displacement;
Abstract: 已被广泛采用的有杆泵抽油系统井下工况诊断技术依据光杆位移随时间的变化和光杆负荷随时间的变化规律,通过力学分析,从而了解整个抽油系统的运行状况.但是在测量光杆位移时,测量仪器的转速异常会使光杆位移的测量值与实际值有较大的偏差,光杆示功图出现一定程度的失真,且导致计算出的抽油泵示功图严重变形, 无法得到准确诊断结果.为此提出了一种对测量的光杆位移函数先进行滤波处理的有杆泵抽油系统诊断技术.该诊断技术可...
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