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Gas Generation Potential and Characteristics of Oil-Prone Shale in the Saline Lacustrine Rifting Basins: A Case Study of the Dongpu Depression, Bohai Bay Basin

文献类型：期刊论文

作者Zhang, Pengyuan2,3; Jiang, Fujie3; Zhu, Chenxi3; Huang, Renda3; Hu, Tao3; Xu, Tianwu1; Li, Wendu3; Xiong, Hang3
刊名ENERGY & FUELS
出版日期2021-02-04
卷号35期号:3页码:2192-2208
ISSN号0887-0624
DOI10.1021/acs.energyfuels.0c03965
英文摘要In comparison to the continuous breakthrough in shale gas of marine basins, the pace of study of lacustrine basins is relatively slow. The latest studies have shown the saline lacustrine rifting basins (SLRBs) are one of the favorable exploration areas from the view of shale pore, mineral composition, and organic matter accumulation. However, the study on the gas generation potential and characteristics is still lacking because the traditional view is that lacustrine source rocks are oil-prone. Therefore, to identify gas generation potential and characteristics of oil-prone shale in SLRBs, the samples from the saline area (SA) and nonsaline area (NA) of the Dongpu Depression are selected for the organic geochemical experiments and closed gold cube thermal simulation experiments. Geochemical results show that the SA samples are definitely oil-prone source rocks with high quality, and their main type is II kerogen. However, the results from thermal simulation experiments indicate that the gas generation potential of oil-prone shale in SLRBs is enough for the accumulation of shale gas with the peak gas yield of 469.11 mg/g of TOC at the heating rate of 20 degrees C/h TOC and 466.75 mg/g of TOC at the heating rate of 2 degrees C/h and TOC. Moreover, according to the dynamic hydrocarbon yields and carbon isotope (ln C-2/C-3, ln C-1/C-2, and delta C-13(1)-delta C-13(2)) during the increasing temperature, the gas generation process for SA and NA samples can be divided into three stages: kerogen cracking, oil cracking, and wet gas cracking. In comparison to other types of source rocks (marine shale, coal, and coal mudstone), the SA oil-prone shale can experience longer intervals in kerogen cracking and oil cracking, which may be the main stage of gas generation. The model based on kinetic parameters shows that the main gas generation period for SA and NA samples is the late Es-1 (the first member of Shahejie Formation) to Ed (the Dongying Formation) of the Early Cenozoic, which can be consist of the depression stage with the deepest depth and the largest subsidence amplitude in the Dongpu Depression. Such information can be a reference for other SLRBs.
WOS关键词ORGANIC-RICH SHALE ; SOURCE ROCKS ; HYDROCARBON GENERATION ; ORDOS BASIN ; TARIM BASIN ; KINETICS ; CRACKING ; KEROGEN ; PYROLYSIS ; CONSTRAINTS
资助项目"Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; National Natural Science Foundation of China[41872128]
WOS研究方向Energy & Fuels ; Engineering
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000627568300026
资助机构"Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; "Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; "Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; "Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; "Periodical Changes of Salinity in the Lake Water and Mechanism of Different Organic Matter Enrichment in the Saline Lacustrine Basins" from SINOPEC Petroleum Exploration and Production Research Institute ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/101028]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Jiang, Fujie
作者单位1.SINOPEC, Zhongyuan Oilfield Branch, Puyang 457001, Henan, Peoples R China
2.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Pengyuan,Jiang, Fujie,Zhu, Chenxi,et al. Gas Generation Potential and Characteristics of Oil-Prone Shale in the Saline Lacustrine Rifting Basins: A Case Study of the Dongpu Depression, Bohai Bay Basin[J]. ENERGY & FUELS,2021,35(3):2192-2208.
APA Zhang, Pengyuan.,Jiang, Fujie.,Zhu, Chenxi.,Huang, Renda.,Hu, Tao.,...&Xiong, Hang.(2021).Gas Generation Potential and Characteristics of Oil-Prone Shale in the Saline Lacustrine Rifting Basins: A Case Study of the Dongpu Depression, Bohai Bay Basin.ENERGY & FUELS,35(3),2192-2208.
MLA Zhang, Pengyuan,et al."Gas Generation Potential and Characteristics of Oil-Prone Shale in the Saline Lacustrine Rifting Basins: A Case Study of the Dongpu Depression, Bohai Bay Basin".ENERGY & FUELS 35.3(2021):2192-2208.

入库方式： OAI收割

来源：地质与地球物理研究所

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