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| Global Geology
2023 26 (1):
47-56
ISSN: 1673-9736: CN: 22-1371/P |
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| Reliability analysis of retractable drill bit with air reverse circulation used for drilling while casing |
| WANG Minqi, YIN Qilei* , CHEN Baoyi, QI Bo, BO Kun and CAO Pinlu |
| College of Construction Engineering, Jilin University, Changchun 130026, China |
| Received null Revised null Online 2023-02-25 |
| Reference null |
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| Corresponding author: |
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