{HEAD ~ Additional sand face completion sections} may be present in {TAIL ~ the wellbore}, such as a lower sand face completion section 240 
present in
{ HEAD ~ Additional sand face completion sections } may be present in { TAIL ~ the wellbore } , such as a lower sand face completion section 240
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH