Method for monitoring an oil well pumping unit

Details Method for monitoring an oil well pumping unit Method for monitoring an oil well pumping unit

1982-06-15

1984-12-25

Look, Edward K.

Pumps

Condition responsive control of pump drive motor

In response to pump speed

417 53, F04B 4900

Patent

active

044900945

ABSTRACT:
Instantaneous speeds of revolution for a beam pumping unit prime mover rotor, determined for all or a predetermined part of the pumping unit reciprocation cycle, are applied to compute one or more parameters of pumping unit performance, which are compared to predetermined values for such parameters to detect the existance of cause (such as pump-off, mechanical malfunction, electrical operating inefficiency or pumping unit imbalance) for correction of pumping unit operation, which is done if indicated by the comparison.

REFERENCES:
patent: 2941120 (1960-06-01), Harman et al.
patent: 3572959 (1971-03-01), Shaughnessy
patent: 3998568 (1976-12-01), Hynd
patent: 4145161 (1979-03-01), Skinner
patent: 4302157 (1981-11-01), Welton et al.
patent: 4384825 (1983-05-01), Thomas et al.

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