Method and apparatus for recording and playback of...

Details Method and apparatus for recording and playback of... Method and apparatus for recording and playback of...

E - Fixed Constructions

21

C

354/23

E21C 45/00 (2006.01) E21B 47/00 (2006.01)

Patent

CA 1207447

28- Abstract of the Disclosure Method and apparatus for recording and sub- sequent playback of selected dynagraphs for wells employing sucker-rod pumping units to determine well faults which cause well shutdown. Calibration data from well monitoring equipment is stored in a first "endless tape" type of memory during calibration of the well and operation data from the monitoring equipment is stored in a second "endless tape" memory during well operation. After well shutdown the stored data can be retrieved and the operation data stored immediately prior to well shut- down compared with calibration data to determine what type of fault caused well shutdown.

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