用户名: 密码: 验证码:
Application Technology of Preparation of Low Viscosity and Fluid Loss Control Mud for Rotary Drilling Borehole
详细信息   
摘要
For rotary drilling bored grouting pile construction in thick clay, silt and sand layer, borehole collapsing, drill rod burying, drill rod sticking, diameter shrinking and pile breaking often occur because of technical defects. On the premise of analysis on the mechanism in which low viscosity, fluid loss reduction and speed-up cuttings precipitation were solved, the formula of FCLS LV-CMC mud with low viscosity, high-level fluid loss reduction and anti-precipitation was put forward.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700