Page 293 - Petrophysics 2E
P. 293

TABLE 4.9
 FRACTION OF MAXIMUM EQUIVALENT CONDUCTANCE A  FUNCTION OF WATER CONDUCTIVITY [28]
   AS
 Qv   (~NAQV)~~ ,000   (~NAQ~)/~ ,000   The values of 6 for C,  in mho/cm =
 Core No.  (meg/cm3)   (mholcm)   (mho/cm2/meq)  0.05249  0.02822  0.01 492  0.007802  0.004049  0.002085

 1   0.017   0.0023 2   (0.136)   0.929   0.803   (0.383)   (0.254)   (0.182)   (0.127)
 2   0.052   0.00264   0.0507   0.979   0.848   0.647   0.513   0.412   0.315
 3   0.052   0.00268   0.0515   0.959   0.793   0.5873   0.417   0.327   0.239
 4   0.26   0.00287   0.01 1   0.961   1.032   1   0.758   0.614   0.456
 5   0.2   0.004  1 2   0.0206   1.014   0.969   0.787   0.676   0.571   0.462
 6   0.095   0.00415   0.0437   1.027   0.922   0.789   0.683   0.514   0.436
 7   0.053   0.00589   (0.111)   0.921   0.78   0.685   0.574   0.472   0.381
 8   0.053   0.00584   (0.110)   0.91   0.75   0.62   0.503   0.402   0.316
 9   0.085   0.00443   0.0521   1.039   0.978   0.838   0.707   0.604   0.491
 10   0.253   0.01376   0.0544   0.952   0.786   0.648   0.53   0.416   0.313
 11   0.253   0.00857   0.0339   0.993   1   0.83   0.71 1   0.525   0.413
 12   0.28   0.01243   0.0444   1.016   0.941   0.857   0.67   0.557   0.545
 13   0.28   0.01617   0.0578   0.996   0.909   0.804   0.708   0.578   0.515
 14   0.28   0.01384   0.0494   0.957   0.888   0.813   0.733   0.61   0.548
 15   0.41   0.02433   0.0593   0.968   0.868   0.726   0.604   0.452   0.363
 16   0.67   0.02898   0.0433   1.006   0.964   0.91  1   0.826   0.681   0.627
 17   0.33   0.02947   0.0893   1.014   0.963   0.913   0.784   0.712   0.656
 18   0.59   0.02354   0.0399   1.003   0.952   0.881   0.732   0.671   0.712
 19   0.59   0.01853   0.0314   0.985   0.904   0.809   0.723   0.609   0.8
 20   0.59   0.0 1463   0.0248   1.005   0.953   0.84   0.733   0.64   0.673
 21   0.29   0.00872   0.0301   1.056   1 .OS5   0.954   0.729   0.734   0.79
 22   0.72   0.0374   0.0519   1.005   0.956   0.892   0.836   0.802   0.777
 23   1.04   0.0454   0.0437   0.996   0.925   0.833   0.762   0.715
 24   0.81   0.0526   0.0649   1.002   0.975   0.896   0.793   0.774   0.778
 25   1.27   0.0724   0.057   1.01   0.981   0.941
 26   1.47   0.0771   0.0524   1.008   0.969   0.907   0.844   0.806   0.781
 27   1.48   0.0783   0.0529   1.012   1.004   0.964
 Average   0.0463   0.99   0.916   0.82 1   0.69   0.592   0.524
 Std dev   0.0158   0.034   0.034   0.111   0.11   0.13   0.159
 Values between parentheses considered not reliable because of extreme deviation from the rest of the group, probably due to Qv determination. They were
 not used in calculating the average. For C,   0.060 mho/cm, 6 = 1.
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