Inversion Characteristics of Hydrocarbon Gases Carbon Isotopes Varying With Temperature and Implications for Shale Exploration
文献类型:期刊论文
作者 | Wu, Yingqin2; Liu, Yanhong2; Wang, Tong1; Wang, Zhiyu2,3; Yuan, Longmiao2,3; Xia, Yanqin2 |
刊名 | FRONTIERS IN EARTH SCIENCE |
出版日期 | 2021-09-17 |
卷号 | 9页码:8 |
关键词 | pyrolysis hydrocarbon source rocks organic matter types gas carbon isotope isotope inversion |
DOI | 10.3389/feart.2021.620161 |
英文摘要 | In order to understand the influence of source rock types and maturity on hydrocarbon gases carbon isotope change more objectively, a closed-system pyrolysis experiment was carried out on six samples from 250 to 550 degrees C. The values of delta C-13(1), delta C-13(2), and delta C-13(3) were ranged from -73.3 to -29.8%, from -36.3 to -9.5%, and from -38.5 to -12.4%, respectively. The range of delta C-13(1) was the largest, reaching a top value of 43.5%. The results showed that the temperature has an effect on the carbon isotope value of pyrolysis gas. With the increase of the degree of thermal evolution, the carbon isotope value of methane in all samples, except for huangxian gangue, had a change trend from heavy to light firstly, then got heavier. In addition, the carbon isotope values of methane, ethane and propane had the features of delta C-13(1) < delta C-13(2) < delta C-13(3) when the temperatures were under 550 degrees C, which were made up of a series of positive carbon isotopes. However, when the temperature increased above 550 degrees C, there was an inversion of the simulated gas carbon isotope values in Huangxian coal gangue, Minqin oil shale and Huaan carbonaceous shale, i.e., delta C-13(2) > delta C-13(3) and delta C-13(2) > delta(1)3C(1). It indicates that the secondary cracking has occurred at high maturity or over maturity stage. |
WOS关键词 | FORT-WORTH BASIN ; NATURAL-GAS ; BARNETT SHALE ; OIL CRACKING ; ORDOS BASIN ; GENERATION ; PYROLYSIS ; FRACTIONATION ; EVOLUTION ; REVERSAL |
资助项目 | National Science Foundation[42072180] ; National Science Foundation[41772147] ; National Science Foundation[41272147] ; National Science Foundation[41831176] ; National Key R&D Program of China[2017YFA0604803] ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project[E0280101] |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | FRONTIERS MEDIA SA |
WOS记录号 | WOS:000728822500001 |
资助机构 | National Science Foundation ; National Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project ; National Science Foundation ; National Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project ; National Science Foundation ; National Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project ; National Science Foundation ; National Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project ; Chinese Academy of Sciences Instrument Equipment Function Development Technology Innovation Project |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/103907] |
专题 | 地质与地球物理研究所_兰州油气中心 |
通讯作者 | Wu, Yingqin |
作者单位 | 1.Newcastle Univ, Sch Engn, Newcastle, England 2.Chinese Acad Sci, Gansu Prov Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Yingqin,Liu, Yanhong,Wang, Tong,et al. Inversion Characteristics of Hydrocarbon Gases Carbon Isotopes Varying With Temperature and Implications for Shale Exploration[J]. FRONTIERS IN EARTH SCIENCE,2021,9:8. |
APA | Wu, Yingqin,Liu, Yanhong,Wang, Tong,Wang, Zhiyu,Yuan, Longmiao,&Xia, Yanqin.(2021).Inversion Characteristics of Hydrocarbon Gases Carbon Isotopes Varying With Temperature and Implications for Shale Exploration.FRONTIERS IN EARTH SCIENCE,9,8. |
MLA | Wu, Yingqin,et al."Inversion Characteristics of Hydrocarbon Gases Carbon Isotopes Varying With Temperature and Implications for Shale Exploration".FRONTIERS IN EARTH SCIENCE 9(2021):8. |
入库方式: OAI收割
来源:地质与地球物理研究所
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