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Combined Percussive-Rotary Drilling to Increase Rate of Penetration and Life of Drill Bit in Drilling Hard Rock Formation |
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| Authors: | Chunqing Zha Gonghui Liu Jun Li Yumei Li Yan Xi Boyun Guo |
| Affiliation: | 1.College of Petroleum Engineering,China University of Petroleum,Beijing,China;2.Beijing University of Technology,Beijing,China;3.University of Louisiana at Lafayette,Lafayette,USA |
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| 本文献已被 SpringerLink 等数据库收录！ | |