The disclosed invention is {HEAD ~ a sacrificial agent solution} to be injected in {TAIL ~ an enhanced oil recovery operation}, said solution comprising about 0.1% to about 5% by weight of a lignosulfonate and about 0.01% to about 5% by weight of a polyalkylene glycol 
to be injected in
The disclosed invention is { HEAD ~ a sacrificial agent solution } to be injected in { TAIL ~ an enhanced oil recovery operation } , said solution comprising about 0.1 % to about 5 % by weight of a lignosulfonate and about 0.01 % to about 5 % by weight of a polyalkylene glycol
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH