Method and apparatus for weighing a sucker-rod pumped well

Details Method and apparatus for weighing a sucker-rod pumped well Method and apparatus for weighing a sucker-rod pumped well

E - Fixed Constructions

21

B

354/23

E21B 47/00 (2006.01) E21B 43/12 (2006.01) F04B 47/02 (2006.01) F04B 49/06 (2006.01)

Patent

CA 1207448

-22- Abstract of the Disclosure Method and apparatus for checking a sucker-rod pumped well for defects by weighing the well. A load cell connected between the sucker-rod and a power unit develops a signal representative of the load on the sucker-rod. The sucker-rod load is checked with the rod and an associated downhole pump plunger in a stationary position. The load readings are corrected for load cell drift by a computer, and a corrected load value displayed on a digital display unit. The load readings are updated periodically and any changes in load reading can be used to determine the presence of a defect and to ascertain the type of defect in the pumping apparatus.

450930

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