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Mechanism of seepage induced casing damage and numerical simulation
Author(s): DIAO Shun, YANG Chun-he, LIU Jian-jun, Huang Xiao-lan
Pages: 327-
332
Year: 2008
Issue:
2
Journal: ROCK AND SOIL MECHANICS
Keyword: 套损; 渗流; 地应力; 数值模拟; 流固耦合;
Abstract: 油田套损是石油工程中的一大技术难题,多年来困扰着各油田.大量的现场调查和理论分析表明,油田套损与油藏渗流场动态变化密切相关.无论是剪切套损、拉伸套损还是挤压套损,都是渗流引起应力场调整,最终导致套管受力损伤.基于油藏流固耦合理论,分析了油田渗流诱发套损的机制,建立了油藏渗流-应力耦合计算的数学模型,并介绍了利用流固耦合进行套损预测计算的算例,对于套损防控具有重要的理论指导意义.
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