Theoretical and Experimental Antiscaling Performance Study of Several Inhibitors to Prevent Barium Sulfate Formation during Water Injection in Oil Reservoirs

Figure 9

Density of states of sodium of (a) DTPA-5Na, hydrogen of (b) EDTMPS and (c) DTPMP is compared with oxygen atom of BaSO₄.

(a)

(b)

(c)