Retarding deposition of {HEAD ~ paraffin} from {TAIL ~ crude oil} or natural gas with alkaline liquids 
Retarding deposition of { HEAD ~ paraffin } from { TAIL ~ crude oil } or natural gas with alkaline liquids
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH