Comprehensive Treatment of Drilling Construction in Complex Formation of Daxigou Mining Area
详细信息   
摘要
Drilling construction is very difficult in the complex formation of Daxigou mining area in Song County of Henan Province with multi-structure and broken brittle fragment formations.Water gushing,leakage,diameter shrinkage and block-falling occurred frequently with some boreholes abandoned.According to the formation characteristics and construction difficulties,pertinent technical measures were taken in equipment selection,borehole structure,washing fluid and cementing with good effects.The experience of drilling construction was summed up in this paper.
NGLC 2004-2010.National Geological Library of China All Rights Reserved.
Add:29 Xueyuan Rd,Haidian District,Beijing,PRC. Mail Add: 8324 mailbox 100083
For exchange or info please contact us via email.