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通过理论和模拟方法预测液压断裂和床层之间的相互作用的预测标准

Xiaoxi Men¹, Yu Zhang², Di Zuo²

¹School of Transportation Engineering, Dalian JiaoTong University, Dalian, 116028, China. menxiaoxi@126.com.

Scientific reports

|February 19, 2025

概括

一个新的标准评估了液压断裂 (HF) 与页岩中的床层平面 (BP) 如何相互作用. 它预测断裂扩张,滑动或透,有助于优化断裂方案以提高石油和天然气回收.

科学领域:

地质力学地质力学
石油工程是石油工程中的一个.
断裂力学断裂力学断裂力学

背景情况:

水力压裂对于非传统资源开发至关重要,特别是在页岩层中.
液压断裂 (HF) 和床层 (BP) 之间的相互作用显著影响复杂的断裂网络形成.
预测HF-BP相互作用对于优化井完工和水库刺激至关重要.

研究的目的:

开发一个标准来预测液压断层和床层之间的相互作用行为 (扩张,滑动,透).
根据限制压差和相互作用角度,提供HF-BP相互作用的定量评估.
为优化层级页岩水库中的液压压裂方案提供见解.

主要方法:

基于古典和断裂力学原理的标准的开发.
使用两个曲线表示标准的图形表示,定义扩张,剪切滑动和透区域.
通过数值模拟在各种限制压力差异和相互作用角度下验证标准.

主要成果:

该标准准确预测HF-BP相互作用,与数值模拟有很好的一致性.
一个小的限制压差和相互作用角度有利于BP扩张.
大量的限制压力差异和相互作用角度促进BP透,而剪切滑动增强了复杂的断裂网络的发展.

结论:

开发的标准提供了一个简单的评估HF-BP相互作用在分层页岩.
它量化地证明了压力差和相互作用角度对断裂行为的影响.
该标准是优化压裂策略和在页岩形成中的水库重建的宝贵参考.

关键词:

床上用品的飞机.水力压裂是指水力压裂的使用.有层层的页岩.数字模拟数字模拟预测标准的预测标准

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