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