Chemical properties | Drilling fluid | Formation fluid |
---|---|---|
Density | variable | 1.2 (gr/cm3) |
pH | 9-10.5 | 6.1 |
Salinity | 320,000 | 296,000(mg/l) |
Calcium(from anhydrite/CaCl2) | <400 | 28,100(mg/l) |
Magnesium(from MgCl2) | <100 | 7,600(mg/l) |
Sulfate(from anhydrite) | NIL | 2,000(mg/l) |
Carbonate | NIL | 125(mg/l) |
Bicarbonate | NIL | 75(mg/l) |