石油钻柱纵向振动的混沌问题讨论  

Discussion on Chaos in Longitudinal Vibration of Petroleum Drill Stem

作　　者：屈展[1] 徐健学[2] 

机构地区：[1]西安石油学院,西安710065 [2]西安交通大学,西安710049

出　　处：《西安石油学院学报》1996年第5期23-25,38,共4页Journal of Xi'an Petroleum Institute

摘　　要：本文在原苏联科学家M.M.Khasanow所建立的钻柱非线性振动数学模型的基础上,利用非线性科学领域的研究成果,进一步对其可能发生的混沌运动问题进行了讨论.文中用Melnikov方法求出了钻柱产生混沌运动的必要条件,为在钻井过程中适当选择参数以避免井下复杂情况的产生提供了又一理论参考依据.:On the basis of nonlinear drill stem vibration mathematical model set by M. M. Khasanow.a former soviet scientist and by using the recent achievements in nonlinear science field,this paper discusses chaos motion problem which might occurs in the drill stem vibration. The necessary conditions for the occuring of chaos motion in drill'stem vibration was sought out by using Melnikov method. Reference foundations are provided for appropriately choosing parameters so as to avoid complex borehole problems..

关 键 词：钻柱力学 纵向振动 非线性 石油 钻井 

分 类 号：TE22[石油与天然气工程—油气井工程]