在结构复杂的区域内,页岩床层平面上的断裂传播特征
Xing Liu1,2, Lekun Zhao1,2, Shuangming Li1,2
1State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing, 102206, China.
Scientific reports
|February 6, 2026
概括
这项研究揭示了液压断裂如何在页岩中传播,通过分析床层效应. 了解这些机制可以优化复杂的页岩水库中的液压压裂.
科学领域:
- 地质地质地质地质地质地
- 石油工程是石油工程中的一个.
- 材料科学 材料科学 材料科学
背景情况:
- 页岩水库中的液压压裂是复杂的,因为床和交叉床.
- 在这些构造中,断裂传播的机制尚未完全理解.
研究的目的:
- 调查页岩中断裂传播的基本规律.
- 开发一个垂直液压断裂传播的数值模型,考虑床层平面.
- 分析地质参数对断裂形态学的影响.
主要方法:
- 三点曲试验. 三点曲试验.
- 数字图像相关性 (DIC) 技术. 数字图像相关性 (DIC) 技术.
- 数字建模与全球嵌入的凝聚性区域元素.
主要成果:
- 揭示了床影响下的骨折传播规律.
- 一个数值模型模拟了层层的页岩中垂直断裂的传播.
- 确定了控制断裂形态的关键地质参数.
结论:
- 储和中间层的特性显著影响断裂路径.
- 这些发现为在异质页岩中进行液压压裂设计提供了指导.
- 这项研究阐明了复杂页岩构造中的断裂传播机制.
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