Evolution of mechanical properties of organic-rich shale during thermal maturation
文献类型：期刊论文
| 作者 | Wang, Jianfeng2,3,4,5; Liu, Dayong2,3; Shi, Jianfei2,3; Yang, Chao6; Liu, Yuke7; Wang, Guozhi2,3; Guo, Huijuan2,3; Liu, Peng1; Xiong, Yongqiang2,3; Peng, Ping'an2,3 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2024-10-17 |
| 卷号 | 14期号:1页码:16 |
| 关键词 | Organic matter Clay matrix Organic-rich shale Thermal maturation Mechanical properties |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-024-75035-7 |
| 英文摘要 | Accurate assessment of the mechanical properties of organic matter, clay matrix, and bulk shale during maturation remains a challenge. Here, we aim to assess the mechanical properties of organic-rich shale during maturation using a combination of nanoindentation methods and various geochemical analyses, i.e., mineral composition, mass loss rate, chemical structure of organic matter, and Rock-Eval analyses. Results show that the evolution of mechanical properties of organic matter in shale during maturation can be divided into: the main oil-generation stage, and the condensate oil and gas generation stage. The stiffening of organic matter in the shale is mainly due to increased aromaticity and condensation of aromatic groups. The clay matrix experiences a slight decrease in hardness and Young's modulus at low maturity levels due to the generation of liquid hydrocarbons. However, overall, the clay matrix becomes stiffer as the shale matures due to shale dehydration, expulsion or cracking of liquid hydrocarbons, transformation of clay minerals, and hardening of organic matter. The Young's modulus and hardness of bulk shale generally increase with increasing maturity. This is closely related to the hardening of organic matter and clay matrix, as well as the development of the more compact and dense microstructure in the shale. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001336662600007 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81234]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Liu, Dayong; Xiong, Yongqiang |
| 作者单位 | 1.Xian Univ Sci & Technol, Coll Safety Sci & Engn, Xian 710054, Shanxi, Peoples R China 2.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 4.Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China 5.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Res Ctr Oil & Gas Resources, Lanzhou 730000, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Nat Gas Hydrate, Guangzhou 510640, Peoples R China 7.Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jianfeng,Liu, Dayong,Shi, Jianfei,et al. Evolution of mechanical properties of organic-rich shale during thermal maturation[J]. SCIENTIFIC REPORTS,2024,14(1):16. |
| APA | Wang, Jianfeng.,Liu, Dayong.,Shi, Jianfei.,Yang, Chao.,Liu, Yuke.,...&Peng, Ping'an.(2024).Evolution of mechanical properties of organic-rich shale during thermal maturation.SCIENTIFIC REPORTS,14(1),16. |
| MLA | Wang, Jianfeng,et al."Evolution of mechanical properties of organic-rich shale during thermal maturation".SCIENTIFIC REPORTS 14.1(2024):16. |
入库方式： OAI收割
来源：广州地球化学研究所
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