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Keywords: polished rod load
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Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-187028-MS
.... Sucker rod string When rod parts and rod on tubing wear are the problems, reducing rod loads (peak polished rod load [PPRL], side loads and rod buckling) can improve the main time between failures (MTBF). According to the API standard calculations for rod lift systems, it is clear from the following...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Asia Pacific Oil and Gas Conference, November 7–10, 1994
Paper Number: SPE-28766-MS
...) is the ratio of the peak polished rod load (PPRL) to the maximum allowable load (PPRLa) for the particular unit. LI indicates the surface equipment’s loading efficiency. If LI > 1, decrease SPM, stroke length or Dp or select a bigger unit. However, if LI is too small, a smaller unit could perform the job...