北京平原区新生界立体地质调查钻探泥浆护壁技术

Borehole Wall Protection with Slurry in Cenozoic Stereo Geological Investigation in Plain Area of Beijing

摘要:

结合北京市平原区新生界立体地质调查钻探施工工程,阐述了北京平原区第四系取心钻探工程的地层特点、施工技术难点.重点介绍了松散地层不同地层泥浆特性、配比及护壁效果、措施.

Abstract:

Combining with drilling construction in Cenozoic stereo geological investigation in plain area of Beijing, the paper introduced the features of strata and construction difficulties of coring engineering of Quaternary. The features and proportions of slurry and effect of borehole wall protection in different loose strata were mainly introduced.