Method and apparatus for controlling a progressing cavity well p

Details Method and apparatus for controlling a progressing cavity well p Method and apparatus for controlling a progressing cavity well p

1996-10-03

1998-07-21

Sheikh, Ayaz R.

Pumps

Condition responsive control of pump drive motor

Responsive to change in rate of pump fluid flow

417 441, 417 53, F04B 4900

Patent

active

057826080

ABSTRACT:
A method and apparatus for controlling the speed of a progressing cavity liquid well pump by driving the pump with a variable speed drive device while measuring the amount of liquid production from the pump. The speed of the pump is varied in speed steps, either upwardly or downwardly, by the variable speed drive device while measuring liquid production, to maintain a linear relationship between liquid production and pump speed.

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