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.

• 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。