Journal of Control Science and Engineering / 2013 / Article / Tab 1

Research Article

Research on Feature Extraction of Indicator Card Data for Sucker-Rod Pump Working Condition Diagnosis

Table 1

Normalized Fourier Descriptors of 12 typical fault indicator cards.

FD1FD2FD3FD4FD5FD6FD7FD8FD9 FD10

Top pump bumping10.048250.066730.009210.019380.012280.017890.003730.006150.00368
Bottom pump bumping10.041900.061500.010790.021050.005800.020750.000180.005250.00382
Broken-dropped of sucker rod10.002560.071370.041220.001810.004230.010410.002780.006120.00312
Insufficient fluid supply10.091350.079210.039700.027560.002680.002740.021330.006560.00519
Leakage of traveling valve10.027290.081380.012800.020710.020710.010730.008030.009360.00458
Leakage of standing valve10.040800.081720.012140.021290.019900.007400.006190.008900.00371
Leakage of both valves10.002560.081580.012560.025170.019280.006830.007250.009120.00369
Stuck piston10.008230.072590.011930.001580.009250.009570.004580.003490.00344
Gas lock10.083650.067590.023580.021350.002450.002560.023250.005890.00623
Liquid hammer10.091950.060640.020820.020730.002830.002550.041950.007640.00082
Sand inflow10.009250.074360.005640.025770.005560.017280.000580.002780.00166
Plunger out pump barrel10.042550.082120.012230.020190.016250.007220.005390.006930.00316

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