Research Article
Genetic Types and Main Control Factors of Microfractures in Tight Oil Reservoirs of Jimsar Sag
Table 3
Test data of core sample from well J34.
| Sample | Nonbrittle mineral content (%) | Brittle mineral content (%) | Clay mineral | Chlorite | Illite | Mixed-layer illite | Quartz | Calcite | Dolomite | Feldspar | Pyrite |
| J37-1 | 44 | 24 | 59 | 16 | 43 | 1 | 2 | 6 | 4 | J37-2 | 24 | 10 | 71 | 19 | 63 | 4 | 6 | 1 | 2 | J37-3 | 28 | 11 | 70 | 19 | 48 | 7 | 4 | 12 | 1 | J37-4 | 25 | 14 | 55 | 31 | 43 | 8 | 8 | 13 | 3 |
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