Table 6 Phase composition of precipitates from FW (Sr2+ and Ba2+)-SW (4 × Na2SO4) system.

From: Influence of inorganic scale formation on asphaltene behavior during water injection

System

Observed phase

2θ (°)

Area under peak

Percentage contribution (%)

FW(Sr2+)-SW (4 × Na2SO4)

CaSO4 (Gypsum)

20.781

474.21

85.43

 

NaCl (Halite)

31.703

81.02

14.57

FW(Ba2+)-SW (4 × Na2SO4

CaSO4 (Gypsum)

20.781

452.92

75.08

 

BaSO4 (Barite)

25.926

150.14

24.92