A new design of automatic vertical drilling tool
| Autor: | Ma, Yanfeng, Xia, Hongquan, Fu, Junxiong, Yang, Peng |
|---|---|
| Zdroj: | In Petroleum September 2015 1(3):264-268 |
| Databáze: | ScienceDirect |
| Externí odkaz: |
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| Autor: | Ma, Yanfeng, Xia, Hongquan, Fu, Junxiong, Yang, Peng |
|---|---|
| Zdroj: | In Petroleum September 2015 1(3):264-268 |
| Databáze: | ScienceDirect |
| Externí odkaz: |
|