{HEAD ~ An improved plunger lift mechanism} comprises an internal hollow body having bypass orifices that, when exposed, allow fluid to pass through during plunger descent in {TAIL ~ a downhole tube} to the bottom of a production well 
{ HEAD ~ An improved plunger lift mechanism } comprises an internal hollow body having bypass orifices that , when exposed , allow fluid to pass through during plunger descent in { TAIL ~ a downhole tube } to the bottom of a production well
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH