Patent Application Publication  Sep. 11, 2014 Sheet 5 of 5  US 2014/0256604 Al  Figure 5  Viscosity of fluid with VES, Anionic Corrosion Inhibitor (ACI),.  and triphenylphosphine  100  90  70  60  Viscositv  (cP) . 50  40  30  20  )E  ~3cP  t.  =--::::__:  ~  YES (70 ga1/1Igal)  --tr-YES (70 gall~IgaIJ  +  ACI (20 galf\Iga l)  ---VES (70 gal~Iga I)+ ACI (23.5 gal/:UgaI)  +  Triphenylphosphine (50 lbm/1\Igal)  0  +-----r-----.-----,-------r------,-------.-- 150  175  200  225  250  275  300  Tempet•ature  {°F) 