Page 292 - Petrophysics 2E

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.