Research Article
Investigation of Multiscaled Pore Structure of Gas Shales using Nitrogen Adsorption and FE-SEM Imaging Experiments
Table 1
TOC and mineral compositions of the investigated marine shale samples.
| Sample | Basin | Stratigraphy | TOC content (wt%) | Quartz (wt%) | Orthoclase (wt%) | Plagioclase (wt%) | Carbonates (wt%) | Total clays (wt%) |
| JY41 | Sichuan | S1l | 1.00 | 34.70 | 1.10 | 3.60 | 5.90 | 53.00 | JY51 | Sichuan | S1l | 1.23 | 26.80 | 0.80 | 5.80 | 4.40 | 58.90 | JY55 | Sichuan | S1l | 1.38 | 29.80 | 0.90 | 5.10 | 5.20 | 56.50 | JY61 | Sichuan | S1l | 1.58 | 27.20 | 0.70 | 5.50 | 10.00 | 53.60 | JY71 | Sichuan | S1l | 1.02 | 26.00 | 1.10 | 7.30 | 27.00 | 35.80 | JY85 | Sichuan | S1l | 2.11 | 28.20 | 1.40 | 6.80 | 12.50 | 47.20 | JY91 | Sichuan | S1l | 2.60 | 38.00 | 1.10 | 4.80 | 7.70 | 45.90 | JY101 | Sichuan | S1l | 2.15 | 38.10 | 1.20 | 3.30 | 13.10 | 38.60 | JY105 | Sichuan | S1l | 2.78 | 43.10 | 1.10 | 5.50 | 13.10 | 32.50 | JY111 | Sichuan | S1l | 3.29 | 45.50 | 1.20 | 4.20 | 10.60 | 32.20 | JY115 | Sichuan | S1l | 3.76 | 31.30 | 1.60 | 6.20 | 23.00 | 33.50 | JY119 | Sichuan | S1l | 5.36 | 55.30 | 1.50 | 4.40 | 7.60 | 28.70 | JY121 | Sichuan | S1l | 3.65 | 59.50 | 1.20 | 2.20 | 7.90 | 25.40 |
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