Institutional Repository of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
| Numerical Simulation on Shale Fragmentation by a PDC Cutter Based on the Discrete Element Method | |
Zhang, Xiaohui1,2,3; Huang, Xiaolin4; Qi, Shengwen1,2,3; Zheng, Bowen1,2,3 ; Guo, Songfeng1,2,3; Lu, Wei1,2,3
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| 2023 | |
| Source Publication | ENERGIES
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| Volume | 16Issue:2Pages:30 |
| Abstract | During the guided drilling process as part of shale gas exploration and development, shale is damaged by a polycrystalline diamond compact (PDC) bit cutter. It is essential to carry out research on rock breaking by a PDC cutter. In this paper, we study the mechanism of shale fragmentation by a PDC cutter based on the discrete element method. Additionally, we consider the effects of bedding angle, bedding thickness, cutting depth and cutting rate on the rock-breaking efficiency of a PDC cutter. The results show the following: (1) With the increase in bedding angle, the number and area of microcracks first increase and then decrease, and the proportion of tension cracks is relatively unchanged; there is no significant change in the morphology of the failure zone, and the average particle size of the cutting fragments first decreases and then increases. (2) With the increase in the bedding thickness, microcracks continue to extend in a horizontal direction, the total number of cracks shows a fluctuated change, and the proportion of tension cracks increases. The failure zone extends in a conical shape in the horizontal direction, and the average size of the cutting fragments gradually increases. (3) With the increase in cutting depth and cutting rate, the number and area of microcracks increase, and the proportion of shear cracks increases; the area of the failure zone increases and the size of the cutting fragment decreases. |
| Keyword | shale PDC cutting rock breaking discrete element method |
| DOI | 10.3390/en16020965 |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) |
| WOS Keyword | ROCK-BREAKING MECHANISM ; CUTTING FORCE ; MODEL ; INDENTATION ; FAILURE ; OPTIMIZATION ; EFFICIENCY ; FRICTION ; ENERGY ; TESTS |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41902289] ; National Natural Science Foundation of China[41825018] ; National Natural Science Foundation of China[42141009] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41790442] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) |
| WOS Research Area | Energy & Fuels |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:000915215000001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/106843 |
| Collection | 页岩气与地质工程院重点实验室 |
| Corresponding Author | Huang, Xiaolin; Zheng, Bowen |
| Affiliation | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Dept Civil Engn, Xian 710049, Peoples R China |
| First Author Affilication | Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences |
| Corresponding Author Affilication | Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zhang, Xiaohui,Huang, Xiaolin,Qi, Shengwen,et al. Numerical Simulation on Shale Fragmentation by a PDC Cutter Based on the Discrete Element Method[J]. ENERGIES,2023,16(2):30. |
| APA | Zhang, Xiaohui,Huang, Xiaolin,Qi, Shengwen,Zheng, Bowen,Guo, Songfeng,&Lu, Wei.(2023).Numerical Simulation on Shale Fragmentation by a PDC Cutter Based on the Discrete Element Method.ENERGIES,16(2),30. |
| MLA | Zhang, Xiaohui,et al."Numerical Simulation on Shale Fragmentation by a PDC Cutter Based on the Discrete Element Method".ENERGIES 16.2(2023):30. |
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