The apparatus of the present invention has a vessel adapted to support a liquid bed and to receive {HEAD ~ the effluent} from the well into {TAIL ~ the liquid bed} 
into
The apparatus of the present invention has a vessel adapted to support a liquid bed and to receive { HEAD ~ the effluent } from the well into { TAIL ~ the liquid bed }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL