Table 2 Detailed ionic composition, TDS, and ionic strength of the Brine solutions prepared for the experiments15.

From: Experimental investigation of divalent ions and CTAB effects on heavy oil emulsion stability in carbonate reservoirs

No.

Solutions

NaCl (g/L)

Na2SO4 (g/L)

CaCl2 (g/L)

MgCl2.6H2O

(g/L)

KCl

(g/L)

Calcite

(g/L)

CTAB

(g/L)

Ionic Strength(I)

TDS

(ppm)

1

SW

28.323

4.936

1.630

10.520

1.032

1

0.386

0.802

46,431

2

SW10d

5.664

0.987

0.326

2.104

0.206

1

0.386

0.160

9,287

3

SW10d.2Ca

5.664

0.987

3.260

2.104

0.206

1

0.386

0.240

12,221

4

SW10d.4Ca

5.664

0.987

6.520

2.104

0.206

1

0.386

0.328

15,481

5

SW10d.2Mg

5.664

0.987

0.326

21.040

0.206

1

0.386

0.440

28,223

6

SW10d.4Mg

5.664

0.987

0.326

42.080

0.206

1

0.386

0.750

49.263

7

SW10d.2SO4

5.664

9.872

0.326

2.104

0.206

1

0.386

0.348

18,172

8

SW10d.4SO4

5.664

19.744

0.326

2.104

0.206

1

0.386

0.556

28,044