The lower end of the tieback member will seal in {TAIL ~ the interior} of {HEAD ~ the casing hanger} 
The lower end of the tieback member will seal in { TAIL ~ the interior } of { HEAD ~ the casing hanger }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD