This paper analyzes the causations of slurry spillover,puts forward treatment schemes,adopts different slurry property in different terrane and makes drilling technique reasonable.

• 对泥浆漏失的原因,进行具体分析,并提出了泥浆漏失处理方案;对岩层的漏失地段,采用不同泥浆性能,使钻探工艺更加合理。