During theimpact remedial operation,the lifting height of the casing swage is the main factor influencing the length of cement sheath damaged.

• 研究表明,冲击整形方法中,整形器的提升高度是影响水泥环损伤长度的主要因素,当冲击次数达到一定值后,冲击次数对水泥环的损伤影响较小。