continually lifting the drill pipe such that the drill pipe moves independently with respect to {HEAD ~ a fixed position} of the rotary control device insert until {TAIL ~ the drill pipe} is separated from the rotary control device insert 
such of
continually lifting the drill pipe such that the drill pipe moves independently with respect to { HEAD ~ a fixed position } of the rotary control device insert until { TAIL ~ the drill pipe } is separated from the rotary control device insert
OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH