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    ANALYSIS OF ELASTIC COLLAPSING OF PERFORATED CASING
    射孔套管弹性抗挤能力分析
    FINITE ELEMENT ANALYSES ON SYNTHETIC FACTORS OF PERFORATING CASING'S COLLAPSE STRENGTH
    射孔套管抗挤强度综合因素有限元分析
    In this paper,the spacial finite element mechanics model of the strength analysis of perforating casing with screw holding was established by using non-linear elasticity-plasticity finite element method.
    利用非线性弹塑性有限元法建立了螺旋布孔的射孔套管强度分析的空间有限元力学模型,该模型可以通过任意改变射孔孔径、孔密、相位角、壁厚、套管尺寸以及不同钢级套管的材料力学特性参数等,对射孔套管抗挤强度进行各种综合因素的有限元力学分析。
    The 3D finite element mechanical model of hydraulic perforated casing was established with FEA software, and the effects of hydraulic perforating parameters on the mechanical strength of casing were studied comprehensively.
    因此,文章利用有限元软件建立了射孔套管的三维有限元模型,分析了水力射孔后套管管体的应力分布,重点研究了水力射孔参数—孔密、孔径、孔深、射孔方位角等对套管强度的影响规律。
    The Fem Analysis of the Bearng Ability of the well casing Under the Condition of Rock Being Broken up by High Energy Gas
    在高能气体压裂工况下井下射孔套管承载能力的有限元分析
    FEM of sustainability for perforating casing with screw holding
    螺旋布孔射孔套管承载能力有限元分析
    FEA OF STRESS CONCENTRATION COEFFICIENT OF PERFORATED CASING
    射孔套管应力集中系数有限元分析
    Theoretical analysis of collapsing strength of the perforated casing.
    射孔套管抗挤强度理论分析
    Remaining collapse resistance analysis of perforated gasing
    射孔套管剩余抗挤能力分析
    NUMERICAL SIMULATION OF A PERFORATED CASING DAMAGE IN STEAM INJECTION WELLS UNDER GEOSTRESS AND TEMPERATURE LOAD
    地应力和温度载荷耦合作用下注汽井射孔套管损坏的数值模拟
    In detail, after finite element mechanics model of sleeving with hole is built paying respect to water pressure, analysis and calculaion is done, then result is obtained to analyze the mechanism of casing failure in petroleum tube, which has certain theoretical significance and reference value to farther research against casing failure.
    具体地是建立考虑水压力的带有射孔的套管受力的有限元模型,经过计算分析得出由于注水原因导致的套管损坏的机理研究成果,它将对套损的进一步研究和如何进行防治套管损坏具有一定的理论意义和参考价值。
    New ideas and methods in the paper:1) The formulas on perforated casing collapse strength were deducted, which offereda convenient method to analyze the relationship between casing collapse strength and perforation;
    1)推导出了射孔套管抗挤强度的解析式,为分析射孔与套管强度的变化关系提供了简便的方法;
 

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