The blend of {HEAD ~ beneficiating agents} affects {TAIL ~ a decreasing yield stress character} with decreasing temperature to permit drill solids removal at ambient surface conditions 
The blend of { HEAD ~ beneficiating agents } affects { TAIL ~ a decreasing yield stress character } with decreasing temperature to permit drill solids removal at ambient surface conditions
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH