Experimental Study on Drilling Signal Characteristics of PDC Drill Bit in Media of Different Strengths and Identification of Weak Media
Zheng Wu, Yingbo Fan, Huazhou Chen, Uros Zuperl · 2024
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Description
The authors study drilling signals from a diamond drill bit in a 2024 experiment on rock strength. Knowing when a bit passes from strong rock into a weak layer could warn of roof collapse in mines. The team drilled media of different strengths in the lab and recorded thrust and torque.
In the weakest material, drilling was fastest and forces were smallest. Some simple signal measures failed to separate the media well. Time and frequency analysis, plus a decomposition method, showed clear shifts at layer boundaries. The authors argue those signals can serve as extra criteria for spotting weak layers during drilling.
Catalog record
| CREATOR | Zheng Wu, Yingbo Fan, Huazhou Chen, Uros Zuperl |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |