This is despite the extra cost associated with injecting {HEAD ~ large quantities} of fresh water instead of {TAIL ~ brine} 
This is despite the extra cost associated with injecting { HEAD ~ large quantities } of fresh water instead of { TAIL ~ brine }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL