Polymer

Concentration

[ppm]

Flowing Grids

[%]

Grids with visible retention* [%]

Visible Retention

BIO-Scleroglucan

600

87.0

3.45

Low

BIO-Scleroglucan

1000

79.5

6.29

Intermediate

HPAM-Flopaam

700

83.0

2.41

Low

HPAM-Flopaam

1000

86.5

5.78

Intermediate

HPAM-Flopaam

1500

87.0

19.54

High