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Evolution of mechanical properties of organic-rich shale during thermal maturation

文献类型：期刊论文

作者Wang, Jianfeng1,2,3,4; Liu, Dayong1,2; Shi, Jianfei1,2; Yang, Chao5; Liu, Yuke6; Wang, Guozhi1,2; Guo, Huijuan1,2; Liu, Peng7; Xiong, Yongqiang1,2; Peng, Ping'an1,2
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
DOI10.1038/s41598-024-75035-7
通讯作者Liu, Dayong(liudayong@gig.ac.cn) ; Xiong, Yongqiang(xiongyq@gig.ac.cn)
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关键词C-13 NMR ; MACROMOLECULAR STRUCTURE ; CHEMICAL-STRUCTURE ; ELASTIC PROPERTIES ; LONGMAXI SHALE ; II KEROGEN ; OIL-SHALE ; MATTER ; GAS ; NANOINDENTATION
资助项目Open Fund of Key Laboratory of Petroleum Resources Research, Gansu Province ; National Natural Science Foundation of China-Enterprise Joint Fund[U2167210] ; National Natural Science Foundation of China[42272182] ; National Natural Science Foundation of China[41802165] ; Natural Science Foundation of Guangdong Province[2023A1515030280] ; Postdoctoral Fellowship Program of CPSF[GZC20241735] ; Special project of CAS[THEMSIE04010104] ; State Key Laboratory of Organic Geochemistry[SKLOG2024-03] ; [SZDKFJJ2023009]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001336662600007
出版者NATURE PORTFOLIO
资助机构Open Fund of Key Laboratory of Petroleum Resources Research, Gansu Province ; National Natural Science Foundation of China-Enterprise Joint Fund ; National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Postdoctoral Fellowship Program of CPSF ; Special project of CAS ; State Key Laboratory of Organic Geochemistry
源URL[http://ir.giec.ac.cn/handle/344007/43248]  
专题中国科学院广州能源研究所
通讯作者Liu, Dayong; Xiong, Yongqiang
作者单位1.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
2.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China
3.Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China
4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Res Ctr Oil & Gas Resources, Lanzhou 730000, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Nat Gas Hydrate, Guangzhou 510640, Peoples R China
6.Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
7.Xian Univ Sci & Technol, Coll Safety Sci & Engn, Xian 710054, Shanxi, 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：广州能源研究所

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