页岩矩阵的新型表面透性模型,根据"节能法"的框架得出
Shuai Chen1, Xulin Peng1, Haoran Xu1
1School of Mathematical Sciences Soochow University, Suzhou 215006, China.
ACS omega
|April 7, 2025
概括
这项研究提出了页岩气体运输的新模型,将连续流和Knudsen扩散合起来. 该模型准确地预测了页岩透性变化,改进了现有的非传统资源开采方法.
科学领域:
- 石油工程是石油工程中的一个.
- 地质科学 地质科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 与页岩一样,非常规的石油和天然气是重要的能源来源.
- 页岩的复杂微观结构挑战了精确的气体运输和透性预测.
- 页岩中的天然气运输在较高的Knudsen数下偏离了连续流.
研究的目的:
- 为页岩油开发一个散装天然气运输模型.
- 为了创建页岩的表面透性模型.
- 提高页岩储水中气体运输和透性预测的准确性.
主要方法:
- 将毛细管空间划分为三个流动区.
- 应用节能定律. 应用节能定律.
- 在散装气体运输模型中,连接连续流和Knudsen扩散.
- 开发一个表面透率模型,包括表面扩散,气体吸附和有效应力.
- 创建一个滑动速度模型,按气体覆盖度加权.
主要成果:
- 建立了一种新型的页岩散装气体运输模型.
- 通过考虑多种运输机制,开发了一种表面透性模型.
- 拟议的模型与观测数据有很好的一致性.
- 与现有的表面透性模型相比,开发的模型显示了更高的准确性.
结论:
- 新模型准确地描述了页岩中的天然气运输特性.
- 该模型增强了页岩水库的透性变化的预测.
- 这项工作为理解和利用非传统能源资源提供了更准确的工具.
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