Method and apparatus for detecting problems in sucker- rod well pumps
CA 1207446 A · Owner: Fmc Corporation · Inventors: Mctamaney, Louis S.; Bisbee, Gary W.; Delfino, Allan B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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38-, Abstract of the Disclosure, Method and apparatus for detecting problems in sucker-rod well pumps and for determining which type of problem occurs. A first transducer provides a signal representative of the load on a sucker-rod string and a second transducer provides a signal representative of the sucker-rod position. The load signal and the position signal are used to generate a dynagraph of rod load vs. rod position with the pump working normally. A working dynagraph is continually compared with the normal dynagraph and a working load signal is continually compared with a normal rod load signal to detect problems in the pumping system and to determine the type of problem detected if …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 2003.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.