【摘要】 为了探讨高压注水条件下成片浸水域套管发生大面积套损的主要原因,通过对观测资料的分析,提出了浸水域形成后地层相对错动的模拟方法,采用无厚度摩擦元进行了模拟.采用非线性分析的方法得到,随着滑移的增加,地层滑移抵抗力呈非线性衰减,在高压注水条件下,随着注水压力的提高,地层滑移抵抗力减小.该方法概念明确,容易理解,参数确定方法简单,易于编制通用计算程序,为套损分析提供了依据.更多还原

【Abstract】 The thickless friction element analysis has been proposed for the relative stratum movement together with the nonlinear analysis. As the slippage increases, the ability of resistance in the stratum declines nonlin-early. With the injection pressure increasing, the resistance of stratum slippage decreases. The method is easy to understand and simple on computer program.更多还原