Study on the Tooth Invasion Coefficient of Cone Bit and Penetration Rate
in Under-balance Drilling
Li Wei, Xu Xinghua, Yan Tie, Bi Xueliang
西南石油大学学报(自然科学版) . 2013, (3): 168 -173 .  DOI: 10. 3863/j. issn. 1674 – 5086. 2013. 03. 024