The prevention and dispose of complex accident is a key link in deep drilling, the Xu Senping 34 as an example has been taken, stated the thought and process of dealing with the complex accident in drilling, put forward three management alternatives, casing sidetracking technology may utilize the drilled part fully. Field application shows that the technology is economical and low risk, it provides an important drilling engineering method to deal with complex conditions.%复杂事故的预防和处理是深井钻井过程中的一个重要环节,本文以徐深平34井为例,叙述了该井在钻井过程中处理复杂事故方面的思路及过程,提出了三种处理方案,其中优选的开窗侧钻技术可以充分利用上部已钻井段,现场应用表明,使用该技术经济性好、作业风险低,为今后深井复杂情况的处理提供了重要的钻井工程技术手段.
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