摘要
采用弹性和弹塑性有限元对井眼径向位移变化、井壁周围的应力变化和井眼稳定性进行讨论。利用AN SYS软件导出了井眼径向位移变化、井壁周围的应力变化的曲线图,并结合该图对其变化规律进行具体分析。得出在实际中采取的井眼稳定性的具体措施,即对钻井液进行调整控制,钻井液密度对井壁的稳定性具有重要的作用。
The paper discusses the radial displacement , surrounding wall stress and wellbore stability by using the flexible and elastic--plastic finite element method. We get the curve of radial displacement , surrounding wall stress and wellbore stability by using ANSYS software and, the same time doing specific analysis. In the actual work, the main measure to concrete the wellbore stability is adjusting the drilling fluid, borehole drilling fluid density plays an important role in the concreting of wellbore stability.
出处
《内蒙古石油化工》
CAS
2008年第9期133-135,共3页
Inner Mongolia Petrochemical Industry
关键词
井眼径向位移
井周应力
井眼稳定性
钻井液
Radial displacement
Surrounding--wall stress
Wellbore stability
Drilling fluid
