气候变化领域集成服务门户(CCPortal): Petroleum Generation, Retention, and Expulsion in Lacustrine Shales Using an Artificial Thermal Maturation Approach: Implications for the In-Situ Conversion of Shale Oil

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DOI	10.1021/acs.energyfuels.0c03045
	Petroleum Generation, Retention, and Expulsion in Lacustrine Shales Using an Artificial Thermal Maturation Approach: Implications for the In-Situ Conversion of Shale Oil
	Song, Dongjun; Wang, Xiaoqi; Wu, Chenjun; Meng, Siwei; Zhang, Mingfeng; Li, Huadong; Jiao, Hang; Liu, Xiaodan; Jin, Xu; Tuo, Jincai
通讯作者	Tuo, JC (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China. ; Jin, X (通讯作者)，Res Inst Petr Explorat & Dev, Beijing 10083, Peoples R China.
发表日期	2021
ISSN	0887-0624
EISSN	1520-5029
起始页码	358
结束页码	373
卷号	35 期号:1
英文摘要	Organic-rich lacustrine shales with medium-low maturity in China have considerable potential to produce oil with the aid of in-situ underground conversion technology. Two shale samples from the Qingshankou Formation in the Songliao Basin and the Chang 7 Member in the Ordos Basin were selected for semi-closed pyrolysis, and the pyrolysis products and solid residues were subjected to detailed organic geochemical analysis and focused ion beam scanning electron microscopy (FIB-SEM) analyses to elucidate the evolution of organic matter; to quantitatively and qualitatively characterize the generation, retention, and expulsion of hydrocarbons; and to explore the required optimal temperature ranges for the two shales during in situ heating. The results showed that (a) the labile organic matter in the samples was progressively converted into hydrocarbons and (b) the cumulative yield of the retained oil continuously decreased as the temperature increased, the expelled oil reached its peak value at 400-450 degrees C, and oil cracking into gas occurred above 350 degrees C. The characteristics of the oil compositions indicated that hydrocarbons are directly decomposed from kerogen in the studied lacustrine shale samples, instead of being formed by bitumen cracking. Oil retention in the artificially mature samples is associated with organic richness, and large amounts of oil retained in samples can lead to a strong charging effect in FIB-SEM images, which is expressed as strong brightness. Mass balance calculations demonstrated that the maximum values of the oil expulsion efficiency are 82.59% for the Chang 7 shale sample and 96.27% for the Qingshankou shale sample at 350 degrees C. Meanwhile, substantial light hydrocarbons are produced and expelled in the pyrolysis of the latter sample. During an in-situ conversion process, the optimal temperature ranges are suggested to be 400-450 degrees C for the Chang 7 shale and 350-425 degrees C for the Qjngshankou shale. In these ranges, most labile organic matter can be converted into hydrocarbons, hydrocarbon expulsion efficiency is higher, and oil is characterized by appropriate mobility as well as a relatively lower secondary cracking degree.
关键词	CRETACEOUS QINGSHANKOU FORMATION BARNETT SHALE HYDROCARBON GENERATION UNCONVENTIONAL SHALE SONGLIAO BASIN GAS GENERATION SOURCE ROCKS ORDOS BASIN CRUDE OILS CHINA
语种	英语
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000609088800026
来源期刊	ENERGY & FUELS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254147
作者单位	[Song, Dongjun; Zhang, Mingfeng; Tuo, Jincai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China; [Song, Dongjun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Xiaoqi; Meng, Siwei; Li, Huadong; Jiao, Hang; Liu, Xiaodan; Jin, Xu] Res Inst Petr Explorat & Dev, Beijing 10083, Peoples R China; [Wu, Chenjun] Yangtze Univ, Coll Resources & Environm, Wuhan 430100, Peoples R China
推荐引用方式 GB/T 7714	Song, Dongjun,Wang, Xiaoqi,Wu, Chenjun,et al. Petroleum Generation, Retention, and Expulsion in Lacustrine Shales Using an Artificial Thermal Maturation Approach: Implications for the In-Situ Conversion of Shale Oil[J]. 中国科学院西北生态环境资源研究院,2021,35(1).
APA	Song, Dongjun.,Wang, Xiaoqi.,Wu, Chenjun.,Meng, Siwei.,Zhang, Mingfeng.,...&Tuo, Jincai.(2021).Petroleum Generation, Retention, and Expulsion in Lacustrine Shales Using an Artificial Thermal Maturation Approach: Implications for the In-Situ Conversion of Shale Oil.ENERGY & FUELS,35(1).
MLA	Song, Dongjun,et al."Petroleum Generation, Retention, and Expulsion in Lacustrine Shales Using an Artificial Thermal Maturation Approach: Implications for the In-Situ Conversion of Shale Oil".ENERGY & FUELS 35.1(2021).