Well production control system

Details Well production control system Well production control system

E - Fixed Constructions

21

B

341/97

E21B 47/12 (2006.01) E21B 47/00 (2006.01) F04B 49/00 (2006.01)

Patent

CA 1247719

-37- ABSTRACT OF THE DISCLOSURE Apparatus for detecting fluid pound in a sucker- rod oil well, using values of sucker-rod position and of sucker-rod load to calculate a reference position and a selected load value. The apparatus continually updates the reference positions and selected load values to com- pensate for drift in characteristics of transducers used in determining rod load and rod position and for a gradual change in well characteristics. When the sucker- rod moves downward to the updated reference position, the actual rod load is checked against the updated selected value and a warning signal develops when the amount of load exceeds the updated selected value.

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