在套损井中，由于套管变形、结垢等因素，进一步加大了封隔器卡钻的可能性。
The probability of packer sticking is increased because of the casing deformation and crustation in casing failure well.
允许自由移动的封隔器管柱是油气井封隔器完井的一种重要类型，油气井内压力和温度变化会导致封隔器管柱受力，从而发生变形。
The packer string with free movement is an important type of packer completion. The change of pressure and temperature can make the packer string get force, which results in deformation.
文中对不能移动封隔器管柱变形受力的有关问题进行了分析、推导和讨论，并给出了算例。
This paper analyses and discusses the problems about variation of permanent packer string, and provides calculation examples.
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