Therefore, characterization of this new phase would have significant implications for identifying the suitable conditions at which CWI displaces the oil more efficiently.
Due to the fact that the Nanjing training center is in the Nanjing CWI and the CWI has excellent facilities, the chances for translating their new-found knowledge into action are greater.
In this study, through a series of carefully designed coreflood and micromodel experiments, the aim has been to comprehensively investigate (i) the complex fluid-fluid interactions which happen at pore scale during CWI in both ''live'' and dead oil systems and (ii) the effects of formation of the new phase and wettability alteration on oil recovery by CWI at core scale.
For the coreflood experiments two systems were considered, a mixed-wet system and a water-wet system, and for each system a secondary waterflood and a secondary CWI were conducted at pressure and temperature of 2500 psia and 100°F.
The EAR for longer (4 or more day) admissions was associated with the IMD 2007 and the environment, crime, children in need, education and material domains of the CWI 2009 measured at PCT-level.
The overall EARs were associated with deprivation measured by the IMD 2007 and the crime, children in need, and education domains of the CWI 2009 measured at PCT-level.
In an adult Indian population, for example, the prevalence was significantly higher (88.2%) among subjects with low clean water index (CWI), when compared to those with high CWI (33.3%) [ 34].
Thus, it is concluded that the application of CWI to virgin light oil reservoirs, i.e., secondary CWI, is more efficient compared to CWI applied to the reservoir after WF, i.e., tertiary CWI.
The expression of this inhibitor gene in leaves of HD plants also showed an inverse correlation with the pattern of CWI activity, since its down-regulation, at 1 dppd, correlated with augmented levels of CWI activity.
Furthermore, it was observed that the oil recovery of secondary CWI is significantly higher than that of tertiary CWI.
