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WATER CHEMISTRY EVALUATION OF THE EXISTING STIG-1 AND PROPOSED LEC-1 INJECTION WELLS <br /> NaSO4- 1.060e-005 7.85le-006 -4. 975 -5.105 - <br /> 0.130 <br /> NaCO3- 8.399e-006 6.223e-006 -5.076 -5.206 - <br /> 0.130 <br /> NaOH 4.586e-008 4.82le-008 -7.339 -7.317 <br /> 0.022 <br /> 0(0) 7.250e-013 <br /> 02 3. 625e-013 3.81le-013 -12.441 -12.419 <br /> 0.022 <br /> S (6) 8.422e-005 <br /> SO4-2 5.158e-005 1.446e-005 -4.288 -4.840 - <br /> 0.552 <br /> CaSO4 1.736e-005 1.825e-005 -4.761 -4.739 <br /> 0.022 <br /> NaSO4- 1.060e-005 7.85le-006 -4. 975 -5.105 - <br /> 0.130 <br /> MgSO4 4.558e-006 4.79le-006 -5.341 -5.320 <br /> 0.022 <br /> KSO4- 1.293e-007 9.578e-008 -6.888 -7.019 - <br /> 0.130 <br /> HSO4- 3.137e-011 2.324e-011 -10.503 -10. 634 - <br /> 0.130 <br /> CaHSO4+ 2.237e-012 1. 657e-012 -11. 650 -11.781 - <br /> 0.130 <br /> Si 2.777e-004 <br /> H4SiO4 2.726e-004 2.866e-004 -3.564 -3.543 <br /> 0.022 <br /> H3SiO4- 5.096e-006 3.775e-006 -5.293 -5.423 - <br /> 0.130 <br /> H2SiO4-2 9.346e-011 2.815e-011 -10.029 -10.550 - <br /> 0.521 <br /> ------------------------------Saturation indices-------------------------- <br /> Phase SI log IAP log KT <br /> Anhydrite -2. 67 -7.07 -4.40 CaSO4 <br /> Aragonite 0.52 -7.87 -8.38 CaCO3 <br /> Calcite 0. 65 -7.87 -8.52 CaCO3 <br /> Chalcedony -0.07 -3.54 -3.47 Si02 <br /> Chrysotile -0.12 31.23 31.35 Mg3Si205 (OH) 4 <br /> CO2 (g) -3.20 -4.75 -1.55 CO2 <br /> Dolomite 0.81 -16.44 -17.25 CaMg(CO3) 2 <br /> Gypsum -2.49 -7.07 -4.59 CaSO4:2H2O <br /> H2 (g) -35.70 -38.88 -3.18 H2 <br /> H20(g) -1.34 -0.00 1.33 H2O <br /> Halite -3.43 -1.84 1. 60 NaCl <br /> 02 (g) -9.48 -12.42 -2. 94 02 <br /> Quartz 0.34 -3.54 -3.88 Si02 <br /> Sepiolite -0. 66 14. 92 15.58 Mg2Si307.50H:3H2O <br /> Sepiolite (d) -3.74 14. 92 18. 66 Mg2Si307.50H:3H2O <br /> Si02 (a) -0.88 -3.54 -2. 66 Si02 <br /> Talc 3.54 24.16 20. 62 Mg3Si4010 (OH) 2 <br /> ------------------ <br /> End of simulation. <br /> TECHNICAL MEMORANDUM_V3.DOC 23 <br />