TABLE 2.

Characteristics of the samples collected in Samotlor oil reservoir, Western Siberia

Well no.HorizonDepth (m)Temp (°C)pHSalinity (g liter−1)Amt (g liter−1) of:
Ca2+Mg2+ClSO4−2HCO3Total FeK+ + Na+Acetate
656Injection water167.317.980.200.0610.6300.56NDa6.53ND
692AB4-51,900607.5012.050.2806.910.0160.51ND4.35ND
13044AB4-51,799607.307.730.380.134.240.0250.660.0112.310.008
31079AB4-51,800607.4550.190.82029.78<0.0010.88ND18.710.005
35363AB4-51,801607.2310.540.360.258.600.0081.33ND5.170.002
642A71,850607.3520.510.480.0312.05<0.0010.55ND7.400.007
39636B82,090707.359.100.400.055.360.0230.270.0023.020.012
4642B82,090717.558.770.340.065.020.0180.430.0052.920
4640bB82,150717.186.710.200.023.900.0280.230.0022.340.01
10318B82,132717.405.660.180.023.240.0230.270.0021.950
6151B82,220727.0018.110.340.259.830.0081.590.0056.100.007
706bB102,300727.0039.780.800.0623.4300.97ND14.52ND
714J2,299846.8030.501.040.2517.870.0111.040.07010.300.462
735bJ2,287847.7014.320.240.078.0900.710.075.140.30
757J2,384847.2532.851.000.3219.320.0141.040.07411.170.544
767J2,427855.9526.661.000.3915.970.0120.600.0038.700
739J2,350847.3024.800.781014.8900.27ND8.86ND
12597J2,350847.3052.310.80031.02<0.0010.93ND19.55ND
  • a ND, not determined.