Such system can provide {TAIL ~ identification}, inventory, and {HEAD ~ quality control functions} and, in one aspect, are useful to insure that desired tubulars, and only desired tubulars, go downhole and that desired apparatus, and only desired apparatus, is used on the rig 
Such system can provide { TAIL ~ identification } , inventory , and { HEAD ~ quality control functions } and , in one aspect , are useful to insure that desired tubulars , and only desired tubulars , go downhole and that desired apparatus , and only desired apparatus , is used on the rig
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH