Method and apparatus for controlling a progressing cavity...

Details Method and apparatus for controlling a progressing cavity... Method and apparatus for controlling a progressing cavity...

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 49/20 (2006.01) E21B 43/12 (2006.01) F04B 47/02 (2006.01) F04C 13/00 (2006.01)

Patent

CA 2220606

A method and apparatus are provided herein 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 continuously 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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