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A review of down-hole tubular string buckling in well engineering

ISSN号：1001-5620
期刊名称：《钻井液与完井液》
时间：0
分类：TU398.9[建筑科学—结构工程] TE357.6[石油与天然气工程—油气田开发工程]
作者机构：1.MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, 102249, China
相关基金：the financial support from the Natural Science Foundation of China (NSFC,51221003,U1262201);the Science Foundation of China University of Petroleum,Beijing (No.00000);supported by other projects (Grant Numbers:2014A-4214,2013AA064803,2011ZX05009-005)

关键词：屈曲后性能, 井下管柱, 工程, 综述, 临界屈曲载荷, 屈曲行为, 主动控制, 实用价值, Down-hole tubular mechanics Tubular stringbuckling Wellbore configuration Boundary condition Friction force

中文摘要：

下面洞管状的绳弄弯是在很好设计的管状的绳力学的最经典、复杂的部分。下面洞学习弄弯的管状的绳不仅在揭示弄弯的机制有理论意义而且在管状的绳的设计和控制有突出的实际价值。在这评论，基本原则和三部经典著作的适用的范围研究方法(横梁列模型，弄弯的微分方程，和精力方法) 被介绍。在不同弄弯的模式在下面的批评弄弯负担和 buckling 以后行为垂直，倾向，水平，并且从不同研究人员的弄弯的 wellbores 被介绍并且比较。管状的绳弄弯被说明的在下面洞上的转矩，边界条件，磨擦力量，和接头的效果的当前的理解。同时，一些未解决的问题和争论结论被讨论。未来研究应该集中于对弄弯行为和多重因素的联合效果的复杂描述。另外，下面洞的活跃控制管状的绳弄弯行为着急地需要一些注意。

英文摘要：

Down-hole tubular string buckling is the most classic and complex part of tubular string mechanics in well engineering. Studies of down-hole tubular string buckling not only have theoretical significance in revealing the buckling mechanism but also have prominent practical value in design and control of tubular strings. In this review, the basic principles and applicable scope of three classic research methods （the beam-column model, buck- ling differential equation, and energy method） are intro- duced. The critical buckling loads and the post-buckling behavior under different buckling modes in vertical, inclined, horizontal, and curved wellbores from different researchers are presented and compared. The current understanding of the effects of torque, boundary condi- tions, friction force, and connectors on down-hole tubular string buckling is illustrated. Meanwhile, some unsolved problems and controversial conclusions are discussed. Future research should be focused on sophisticated description of buckling behavior and the coupling effect of multiple factors. In addition, active control of down-hole tubular string buckling behavior needs some attention urgently.

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