The field of the invention is sealing and retaining assemblies for downhole tools and more specifically downhole tools set by {HEAD ~ expansion} such as, for example, packers, {TAIL ~ bridge plugs} or liner packers 
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The field of the invention is sealing and retaining assemblies for downhole tools and more specifically downhole tools set by { HEAD ~ expansion } such as , for example , packers , { TAIL ~ bridge plugs } or liner packers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH