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The Casing Stability Theory and Numerical Analysis after Perforation
Author(s): 
Pages: 105-109
Year: Issue:  2
Journal: WELL LOGGING TECHNOLOGY

Keyword:  石油射孔套管稳定性临界载荷屈曲强度孔眼密度数值分析;
Abstract: 从射孔后影响套管稳定性的机理研究和影响规律出发,分析了射孔后套管屈曲强度的3个影响因素:孔眼缺陷、结构完整性与塑性变形、材料加工硬化;对比分析了这些因素的影响规律.应用解析方法和数值分析方法,确定套管的多阶失稳模态临界载荷,分析了临界载荷与孔眼密度及套管直径的关系.阐述了射孔后套管稳定性的工程算法和理论方法的不足,给出了射孔后套管稳定性的变化趋势,为工程应用提供设计和施工的基础数据.
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