Journal of Control Science and Engineering / 2013 / Article / Tab 3

Research Article

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

Table 3

Gray Level Matrix Statistics of typical faults indicator card.


Top pump bumping2.704629.6603−0.37102.95690.05890.9699
Bottom pump bumping2.038129.292−0.144452.40590.05680.9796
Broken-dropped of sucker rod0.007820.3339−0.16842.47990.07100.9634
Insufficient fluid supply−4.117259.7812−0.70842.61010.04830.9753
Leakage of traveling valve2.465840.9686−0.51223.10430.05050.9742
Leakage of standing valve3.860423.7471−0.02162.28120.06180.9684
Leakage of both valves0.388735.56480.08302.42490.05180.9735
Stuck piston−9.038167.0591−0.63852.29350.04540.9768
Gas lock−5.254960.6294−0.62092.29080.04730.9759
Liquid hammer0.327643.7525−0.67603.46740.05300.9729
Sand inflow2.651925.0238−0.10722.37130.06200.9682
Plunger out pump barrel1.300337.3400−0.19662.65070.05210.9734

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