页岩层系孔隙占比计算方法、装置、电子设备及存储介质
By processing scanning electron microscopy images, microcracks are extracted and organic and inorganic pores are identified. Their porosity is calculated, which solves the problem of inaccurate calculation of porosity in existing technologies and enables efficient and accurate assessment of porosity in shale formations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2021-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
Current technologies for studying the pore characteristics of shale formations are limited to a single scale or a single type, failing to comprehensively consider the porosity ratio of different types of pores at multiple scales, and neglecting the contribution of fractures to shale gas enrichment, resulting in inaccurate calculations of porosity ratios.
By acquiring scanning electron microscope images of shale formations, microcracks are extracted and their first porosity is calculated. Organic and inorganic pores are identified and their second and third porosities are calculated. The proportion of different types of pores is determined by combining the expression.
Taking into full account the multi-scale and multi-type characteristics of pores, the accuracy of pore proportion calculation in shale formations is improved, which can truly reflect the contribution of different types of pores to shale gas enrichment and quickly identify multi-scale and multi-type pores.
Smart Images
Figure CN115700736B_ABST