Research Article
An Investigation of Fractal Characteristics of Marine Shales in the Southern China from Nitrogen Adsorption Data
Table 2
Pore structure parameters of shale samples from N2 adsorption isotherms.
| Number | Total pore volume (cm3/g) | Specific surface area (m2/g) | Monolayer volume (cm3/g)a | Average pore size (nm)b |
| L1 | 0.03074 | 18.821 | 0.006685 | 6.532 | L2 | 0.03313 | 16.509 | 0.005864 | 8.028 | L3 | 0.02744 | 19.592 | 0.006959 | 5.602 | L4 | 0.02246 | 15.593 | 0.005539 | 5.762 | L5 | 0.02297 | 9.885 | 0.003511 | 9.296 | L6 | 0.02823 | 16.881 | 0.005996 | 6.690 | L7 | 0.01263 | 7.147 | 0.002539 | 7.069 | L8 | 0.01176 | 6.354 | 0.002257 | 7.404 | L9 | 0.01417 | 7.991 | 0.002839 | 7.095 | L10 | 0.01602 | 12.458 | 0.004425 | 5.144 | L11 | 0.01962 | 12.030 | 0.004273 | 6.524 | L12 | 0.02504 | 14.817 | 0.005263 | 6.760 | L13 | 0.01776 | 13.290 | 0.004721 | 5.345 | L14 | 0.01769 | 17.358 | 0.006166 | 4.076 | L15 | 0.01785 | 16.719 | 0.005939 | 4.271 | L16 | 0.01754 | 16.130 | 0.005730 | 4.349 | L17 | 0.01674 | 16.441 | 0.005840 | 4.074 | L18 | 0.01700 | 16.993 | 0.006036 | 4.002 | G1 | 0.02268 | 9.330 | 0.003314 | 9.723 | G2 | 0.03582 | 19.707 | 0.007000 | 7.270 | G3 | 0.04374 | 24.236 | 0.008609 | 7.219 | G4 | 0.04097 | 22.473 | 0.007982 | 7.292 | N1 | 0.03810 | 32.501 | 0.011545 | 4.689 | N2 | 0.03466 | 25.529 | 0.009068 | 5.431 | N3 | 0.01443 | 7.310 | 0.002597 | 7.897 | N4 | 0.01908 | 8.361 | 0.002970 | 9.128 | N5 | 0.02636 | 12.241 | 0.004348 | 8.616 | N6 | 0.01596 | 11.522 | 0.004093 | 5.539 | N7 | 0.01463 | 12.708 | 0.004514 | 4.605 | N8 | 0.02181 | 23.903 | 0.008491 | 3.649 | N9 | 0.02408 | 27.001 | 0.009591 | 3.567 | N10 | 0.00195 | 1.645 | 0.000584 | 4.749 | N11 | 0.00272 | 2.760 | 0.000981 | 3.947 | N12 | 0.00528 | 4.770 | 0.001694 | 4.424 | N13 | 0.00327 | 1.969 | 0.000699 | 6.638 | N14 | 0.00520 | 3.615 | 0.001284 | 5.757 | N15 | 0.00414 | 2.464 | 0.000875 | 6.718 | N16 | 0.01894 | 20.172 | 0.007165 | 3.755 | N17 | 0.00548 | 2.755 | 0.000979 | 7.951 | WL1 | 0.03652 | 30.101 | 0.010692 | 4.853 | WL2 | 0.02327 | 20.838 | 0.007402 | 4.467 | WL3 | 0.01267 | 10.750 | 0.003818 | 4.716 | WL4 | 0.02802 | 22.616 | 0.008033 | 4.956 | WL5 | 0.02652 | 24.178 | 0.008588 | 4.387 | WL6 | 0.02577 | 23.487 | 0.008343 | 4.389 | WL7 | 0.02420 | 20.779 | 0.007381 | 4.658 | WL8 | 0.01992 | 16.694 | 0.005930 | 4.773 | WL9 | 0.02391 | 22.12 | 0.007857 | 4.324 | WL10 | 0.02433 | 22.321 | 0.007929 | 4.360 | WL11 | 0.02993 | 17.34 | 0.006159 | 6.904 | WL12 | 0.02194 | 19.528 | 0.006936 | 4.494 | WL13 | 0.02092 | 18.65 | 0.006625 | 4.488 | WL14 | 0.02174 | 17.027 | 0.006048 | 5.106 |
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aThe monolayer volume is calculated by BET method [25]. bAverage pore size = 4 Total pore volume/specific surface area.
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