This effects additional release of {HEAD ~ gas} from {TAIL ~ the emulsion} and stratification of the oil and water 
This effects additional release of { HEAD ~ gas } from { TAIL ~ the emulsion } and stratification of the oil and water
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH