Table 10 Comparison of the type of scales in each test condition.

From: Evaluating water injection compatibility and scale-formation reduction in a middle east reservoir using direct pore-scale visualization and NaOH treatment

Sample

Percent of H water

temperature

PH of the mixture

Dominant scales

Formation and Lagoon water

33.33%

95 °C

5.2

Calcium soulphate

Formation and Lagoon water with NaOH

33.33%

95 °C

6.8

Calcium sulphate

calcium Hydroxide sodium sulphate

sodium chloride

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