Timer-controlled beam pumps reduce operating expense

09/13/1999
A timer or pump-off controller (POC) can improve overall beam-pump efficiency for a well with a pump capacity greater than its production capacity. More than 400,000 wells in the U.S. operate with beam-pump artificial lift. Most of these wells pump 24 hr/day and have a pump capacity that exceeds the well's production capacity.Fluid flows into the well when well bore pressure is less than reservoir pressure. In beam-pumped wells, a reciprocating pump removes that fluid. When pump capacity exceeds liquid-producing capacity, a pump could be operated periodically and still remove practically all of the fluid.While the well is shut-in, however, the bottomhole pressure should be maintained ...
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