Analysis on the Second Opening of WFSD-2 Hole and Deviation Correction Construction
详细信息   
摘要
WFSD-2 hole of scientific drilling engineering of Wenchuan earthquake fault zone has high quality requirement, and the hole deviation and coring rate are especially important. Because of complicated bore hole structure, the deviation was difficult to control by large diameter roller bit drilling. The satisfied effect was received by second opening (47.8~638.01 m) construction. The paper summed up and analyzed the construction of deviation correction.
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.