{HEAD ~ The method} 11 wherein said fluid includes a brine selected from the group consisting of NaBr, KCl, {TAIL ~ NaCl}, CaBr2, and CaCl2 
{ HEAD ~ The method } 11 wherein said fluid includes a brine selected from the group consisting of NaBr , KCl , { TAIL ~ NaCl } , CaBr2 , and CaCl2
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH