TFSA molecules

Thus, TFSA molecules can also promote the recovery of oil by coalescing emulsions in the near-wellbore region of production wells(26). 

TFSA molecules have been extensively and successfully used as steam additives in cyclic steam operations(27-32). Recently, results of a TFSA-waterflood which was conducted in West Texas were reported(33). The purpose of the work described in this paper was to further evaluate the feasibility of recovering incremental oil in a mature waterflood by injection of surfactants which change the wettability of reservoir rock surfaces. In this paper, we present the results of laboratory studies with Thin Film Spreading Agents and the results of a carefully conducted TFSA-waterflood pilot in the Torrance Field located in the Los Angeles Basin of California. 

Contact angle measurements for a water droplet on an asphaltene modified borosilicate surface confirmed that low concentrations of TFSA molecules change the wettability of the surface from fractionally-wet to water-wet. Table II shows the results of the contact angle measurements all reported results are the average of 10 separate measurements, none of which varied from the mean by more than 5° As the concentration of the TFSA... 

The latter one-step reduction reaction is consistent with our recent electrochemical investigation into [Dy(TFSA)5] [20]. This result indicated that the presence of the water molecule and the solvation structure of ILs is related to the reduction behavior of [Dy(TFSA)4] and [Dy(TFSA)5] . According to Raman spectroscopy [18], the solvation number of [Nd(TFSA)5] in [P222s][TFSA] is 5.1. Raman spectroscopy has also revealed that five [TFSA] anions act as a bidentate ligand as its two O atoms are centered around the [Nd " ] ion in the TFSA-based ILs. Similar... 

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