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March 21, 2026Bulletin of Mineralogy Petrology and Geochemistry

Characterization of shale organic pore development driven by astronomical orbital cycles--the Wufeng-Longmaxi Formations in the South Sichuan basin as an example

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Authors

CCCheng ChenQGQuanzhong GuanDDDazhong Dong

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Overview

Analyzes organic pore characteristics in shale formations influenced by astronomical cycles, highlighting implications for resource storage.

Key Points

  • The study aims to investigate the characteristics and controlling factors of organic pores in shale reservoirs influenced by astronomical cycles.
  • Conducted mineral analysis and scanning electron microscopy (SEM) for pore characterization.
  • Utilized cyclical stratigraphy to analyze sedimentary combinations of organic and inorganic matter.
  • Examined organic pore types based on the hosting state of organic matter.
  • Identified four types of organic pores based on different hosting states of organic matter.
  • Overall pore size ranges from 9.12 to 594.78 nm, with porosity between 2.01% and 46.34%.
  • Organic pores associated with rigid minerals and clay minerals developed the best in the formations.
  • The distribution of organic matter and pore types varies with depth, indicating a trend in composition.

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/69be38906e48c4981c6791bchttps://doi.org/10.3724/j.issn.1007-2802.20260063
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