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Mechanisms of shale hydration and water block removal
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ZENG Fanhui,ZHANG Qiang,GUO Jianchun,ZENG Bo,ZHANG Yu,HE Songgen
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Table 1. TOC and mineral composition of L1 and L2 shale samples.
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| Sample No. | TOC/% | Proportion of non-clay mineral/% | Proportion of clay minerals/% | | Quartz | Orthoclase | Plagioclase | Pyrite | Dolomite | Calcite | Illite | Chlorite | Montmorillonite | | L1 | 2.3 | 38.5 | 3.9 | 4.3 | 2.8 | 2.3 | 6.5 | 22.1 | 8.4 | 8.9 | | L2 | 3.5 | 36.1 | 3.5 | 4.7 | 2.9 | 3.4 | 4.5 | 11.2 | 6.9 | 23.3 |
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