摘要
穿过深厚粘土层等不稳定地层钻井是我国钻井法凿井的基本特点之一，其中钻井井帮的临时支护是一项关键技术。根据我国钻井实践和泥浆护壁试验，探讨了粘上层钻井中的泥浆护壁机理、井帮规整性，以及地层特性、泥浆特性、井型等与井帮整规性的相应规律。
One of the basic characteristics of large diameter shaft boring in China is the shaft penetrating through unstable strata such as thick and deep clay layer.Temporary support of the shaft wall is a key technique.The mechanism of protection of the shaft in the clay layer by mud cake,the regularity of shaft wall and its relation with the type rock,type of mud and size of shaft are discussed.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1996年第5期491-496,共6页
Journal of China Coal Society
基金
煤炭科学基金
关键词
粘土层
钻井
泥浆护壁
井帮规整性
膨胀抑制
shaft boring through clay layer, temporary support by mud cake, the regularity of shaft wall,inhibition of dilation
