粘土层钻井中的井帮规整性分析  

REGULARITY OF SHAFT WALL WHEN PENETRATING THROUGH CLAY LAYERS

作　　者：柏万禄[1] 韩洪亮[1] 

机构地区：[1]煤炭科学研究总院北京建井研究所

出　　处：《煤炭学报》1996年第5期491-496,共6页Journal of China Coal Society

基　　金：煤炭科学基金

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.

关 键 词：粘土层 钻井 泥浆护壁 井帮规整性 膨胀抑制 

分 类 号：TD265.1[矿业工程—矿井建设]