2 天之前 · The evolution of pore structures in shale reservoirs is critically influenced by the maturity of OM, its micromechanical properties, and interactions with brittle minerals, providing essential ...

The analysis of the shale pore evolution helped us find the shale with the modest micromesopore volume, brittle mineral, and clay mineral contents which is conducive to the development of the Es 4 U shale oil.

2024年12月5日 · The brittle minerals in the shale of the Tiemulike Formation were mainly calcite, quartz, plagioclase, and K-feldspar, and the total brittle mineral content ranged from 45.1 to 99.2%,...

2021年2月1日 · During the evolution of hydrocarbon generation of shale, acidic fluids produced by organic matter dissolve brittle minerals and form a large number of dissolution pores (Chen et al., 2016). The intergranular pores and dissolution pores generated during diagenesis and hydrocarbon generation evolution provide a space for the adsorption of shale gas.

2024年10月13日 · By comparing the characteristics of different shale lithofacies reservoirs, the results show that the lithofacies with a high brittle mineral content have more substantial anti-compaction effects, more primary pores to promote retention and a relatively high proportion of mesopores/macropores.

2024年10月15日 · Results showed that brittle deformed samples developed more mesopores, macropores, and fracture pores. The inter-granular pores between mineral fragments and the inter-layer pores and micro-fractures were the primary sources of the increased pore structures.

2024年7月19日 · Petrographic analysis further reveals that the brittle mineral content has a significant effect on the brittleness, pore development and fracturing effectiveness of the rocks.

2021年4月8日 · Four types of pores are developed in the transitional facies shale, which are clay mineral pores, organic matter pores, brittle mineral pores, and microfractures.

2023年12月9日 · Results showed that compared with undeformed shale, weakly brittle deformed shale (BDS) experienced a significant reduction in micro- and mesopores, mainly resulting from the decrease of organic matter content caused by the development of tectonic fractures and the filling of hydrothermal minerals.

2022年1月20日 · Tectonic deformation has an important influence on the pore structure and physical properties of shale, and different parts of the same structural style also have great differences. In this study, eight shale samples were collected from two different faults based on the distance from each fault.