根据高岭土矿在钻进过程中的特点,研制了适应其地层的简易单动双管钻具和无固相冲洗液,并介绍了钻具的结构、冲洗液的配制和性能. According to the characteristics of kaolin mines during drilling, a simple single-action double-pipe drilling tool and a solid-free rinsing fluid suitable for the formation are developed. The structure of the drilling tool, the formulation and performance of the rinsing fluid are introduced.