Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drilling
Warm ice at temperatures close to the pressure melting point is often encountered in deep ice-core drilling. The heat generated by rotary cutting can melt ice chips, which seriously threatens the safety of drilling if the chips refreeze on the drill bit or barrel. Lowering the cutting heat is an eff...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2024-01-01
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| Series: | Journal of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143024000029/type/journal_article |
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| _version_ | 1841526393491423232 |
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| author | Zhuo Chen Pinlu Cao Han Wang He Yang Qilei Yin |
| author_facet | Zhuo Chen Pinlu Cao Han Wang He Yang Qilei Yin |
| author_sort | Zhuo Chen |
| collection | DOAJ |
| description | Warm ice at temperatures close to the pressure melting point is often encountered in deep ice-core drilling. The heat generated by rotary cutting can melt ice chips, which seriously threatens the safety of drilling if the chips refreeze on the drill bit or barrel. Lowering the cutting heat is an effective method to reduce the melting of ice chips. In this study, a general theoretical model was established based on heat transfer theory and the cutting mechanism to calculate and analyze the cutter temperature during the circulation of the drilling fluid. The model was validated by a series of experiments, which demonstrated reasonable agreement between the calculated data and experimental results, with a maximum error of <16%. The factors that contribute to the rise in the cutter temperature during warm ice drilling were investigated. Results suggest that the drilling fluid has excellent cooling performance, and its type and flow rate have minimal impact on the cutter temperature. To mitigate the cutter temperature rise, maximizing the rake angle and thermal conductivity of the cutter, while minimizing the rotation speed of the drill bit, cutting depth, cutter width and friction coefficient between the ice and cutter is recommended. |
| format | Article |
| id | doaj-art-fc4d5629774a4007b324daab571d1c25 |
| institution | Kabale University |
| issn | 0022-1430 1727-5652 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj-art-fc4d5629774a4007b324daab571d1c252025-01-16T21:53:22ZengCambridge University PressJournal of Glaciology0022-14301727-56522024-01-017010.1017/jog.2024.2Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drillingZhuo Chen0https://orcid.org/0009-0000-5426-9820Pinlu Cao1https://orcid.org/0000-0002-4296-4583Han Wang2He Yang3Qilei Yin4Polar Research Center, Jilin University, No. 938 Ximinzhu Str., Changchun City 130061, ChinaPolar Research Center, Jilin University, No. 938 Ximinzhu Str., Changchun City 130061, China College of Construction Engineering, Jilin University, No. 938 Ximinzhu Str., Changchun City 130061, ChinaPolar Research Center, Jilin University, No. 938 Ximinzhu Str., Changchun City 130061, ChinaPolar Research Center, Jilin University, No. 938 Ximinzhu Str., Changchun City 130061, ChinaCollege of Construction Engineering, Jilin University, No. 938 Ximinzhu Str., Changchun City 130061, ChinaWarm ice at temperatures close to the pressure melting point is often encountered in deep ice-core drilling. The heat generated by rotary cutting can melt ice chips, which seriously threatens the safety of drilling if the chips refreeze on the drill bit or barrel. Lowering the cutting heat is an effective method to reduce the melting of ice chips. In this study, a general theoretical model was established based on heat transfer theory and the cutting mechanism to calculate and analyze the cutter temperature during the circulation of the drilling fluid. The model was validated by a series of experiments, which demonstrated reasonable agreement between the calculated data and experimental results, with a maximum error of <16%. The factors that contribute to the rise in the cutter temperature during warm ice drilling were investigated. Results suggest that the drilling fluid has excellent cooling performance, and its type and flow rate have minimal impact on the cutter temperature. To mitigate the cutter temperature rise, maximizing the rake angle and thermal conductivity of the cutter, while minimizing the rotation speed of the drill bit, cutting depth, cutter width and friction coefficient between the ice and cutter is recommended.https://www.cambridge.org/core/product/identifier/S0022143024000029/type/journal_articlecutting experimentscutting temperaturedrilling fluidice-core drillingwarm ice |
| spellingShingle | Zhuo Chen Pinlu Cao Han Wang He Yang Qilei Yin Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drilling Journal of Glaciology cutting experiments cutting temperature drilling fluid ice-core drilling warm ice |
| title | Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drilling |
| title_full | Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drilling |
| title_fullStr | Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drilling |
| title_full_unstemmed | Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drilling |
| title_short | Theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice-core drilling |
| title_sort | theoretical and experimental study on cutting temperature in the presence of drilling fluid during ice core drilling |
| topic | cutting experiments cutting temperature drilling fluid ice-core drilling warm ice |
| url | https://www.cambridge.org/core/product/identifier/S0022143024000029/type/journal_article |
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