Table 5 The value of the ALI, PA, LC, ARO, and AS=O indices.

From: Experimental investigation of CTAB modified clay on oil recovery and emulsion behavior in low salinity water flooding

No

Solutions

ALI

As = o

PA

ARO

LC

1

Crude oil

0.410

0.780

0.908

0.565

0.411

2

Aged oil-SW

0.276

0.606

0.528

0.432

0.301

6

Aged oil-SW2d

0.290

0.638

0.585

0.451

0.284

3

Aged oil-(SW2d.2Ca)

0.258

0.571

0.477

0.410

0.327

4

Aged oil-(SW2d.4Ca)

0.222

0.514

0.398

0.330

0.352

5

Aged oil-(SW2d.2Mg)

0.241

0.548

0.441

0.367

0.341

7

Aged oil-(SW2d.4Mg)

0.196

0.483

0.369

0.308

0.367

8

Aged oil-(SW2d.2SO4)

0.332

0.670

0.682

0.475

0.233

9

Aged oil-(SW2d.4SO4)

0.309

0.656

0.627

0.463

0.260

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