Method of calibrating a well pumpoff controller

Details Method of calibrating a well pumpoff controller Method of calibrating a well pumpoff controller

1992-03-30

1992-12-01

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

Having timer or delay means

417 18, 417 53, 73151, F04B 4902

Patent

active

051674904

ABSTRACT:
A method of calibrating a well pumpoff controller by calibrating the controller for determining the average load during a pumping stroke, measuring the actual load and averaging the measured maximum and minimum load during each operational stroke, comparing the average measured load with the calibrated average load and providing an offset to the load measurement to correct the measured load towards the calibrated load.

REFERENCES:
patent: 4286925 (1981-09-01), Standish
patent: 4583915 (1986-04-01), Montgomery et al.
patent: 4594665 (1986-06-01), Chandra et al.
patent: 5064349 (1991-11-01), Turner et al.

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