摘要：The emergence of shale oil and gas has markedly boosted the global oil and gas storage and production growth, impacting the strategic energy patterns of numerous countries. However, exploring and exploiting shale reservoirs presents significant challenges, with production efficiency improvements largely reliant on hydraulic fracturing techniques. The mineral composition of shale and the brittleness index are critical parameters that influence the effectiveness of fracturing and production in shale reservoirs, but to date, no accurate calculation method that integrates the mineral composition and its mechanical properties for calculating the rock brittleness index. This study, based on modeling of shale SEM (Scanning Electron Microscope) images and finite element mechanical analysis, quantifies the impact of mineral compositions on the brittleness of shale. By fitting regression equations with different mineral compositions as variables, it classifies shales with different brittleness indexes and predicts the expansion patterns of fractures in shale reservoirs. The results show that each component distribution and anisotropy of shale rock has a minor effect on its brittleness index. The content of each component of shale has a greater effect on its mechanical properties, and the higher the brittle mineral content, the greater the brittleness index of shale, and also easier it is to form the complex fracture networks, which is beneficial to improve the production. ? 2025 Chinese Petroleum Society

ISSN号：2096-2495

卷、期、页：卷10期4：679-687

发表日期：2025-12-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）,ESCI（新兴资源引文索引）

发表期刊名称：Petroleum Research

参与作者：德米特里·马蒂尤舍夫

通讯作者：张云飞,孟雨凡

第一作者：杨钰龙,宋兆杰

论文类型：期刊论文

论文概要：张云飞,杨钰龙,德米特里·马蒂尤舍夫,宋兆杰,孟雨凡，Quantifying the effect of mineral compositions on the brittleness of shale using the finite element method，Petroleum Research，2025，卷10期4：679-687

论文题目：Quantifying the effect of mineral compositions on the brittleness of shale using the finite element method