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Evolution of nanopore structure in lacustrine organic-rich shales during thermal maturation from hydrous pyrolysis, Minhe Basin, Northwest China
Yang, Shuang1,2; Chen, Guojun1; Lv, Chengfu1; Li, Chao1; Yin, Na1,2; Yang, Fei1,2; Xue, Lianhua1
2018-03-01
Source PublicationENERGY EXPLORATION & EXPLOITATION
ISSN0144-5987
Volume36Issue:2Pages:265-281
SubtypeArticle
AbstractThe nanometer-scaled pore systems of gas shale reservoirs have a prominent contribution for gas storage. To obtain information about the characteristics of the nanopore structure within lacustrine organic-rich shales during their thermal evolution, artificial shale samples with different thermal maturities were obtained from a hydrous pyrolysis experiment. Nitrogen adsorption, field emission scanning electron microscopy, and porosity tests were used to investigate the characteristic pore structures of lacustrine shales with different thermal maturities from the Minhe Basin. The results show that the total organic carbon content decreased from 41.89% (unheated) to 27.7% (370 degrees C) and that organic pores, intragranular pores of pyrite, and intergranular pores of clay minerals began to form with an increase in the simulated temperature and pressure. The porosity increased from 3.57% (unheated) to 26.09% (350 degrees C) and then decreased to 20% (370 degrees C) on the whole. The pore sizes were distributed from 1.7 to 500 nm, and the average pore diameter first showed a decreasing trend and then an increasing trend. The cumulative pore volume and cumulative specific surface area both presented a slowly increasing trend from an unheated status to 325 degrees C, exhibited a rapid increase at 350 degrees C, and then showed a slow increase at 370 degrees C. This study could provide a reference for the exploration of shale gas in lacustrine shales with different thermal maturities.
KeywordHydrous Pyrolysis Thermal Evolution Nanopore Structure Lacustrine Shale Minhe Basin
WOS HeadingsScience & Technology ; Technology
DOI10.1177/0144598717723647
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130)
WOS KeywordOPEN-SYSTEM PYROLYSIS ; MISSISSIPPIAN BARNETT SHALE ; CHANG 7 MEMBER ; PORE-STRUCTURE ; ORDOS BASIN ; KINETIC-PARAMETERS ; GAS-ADSORPTION ; GENERATION ; RESERVOIR ; KEROGENS
Indexed BySCI
Language英语
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; Strategic Priority Research Program of Chinese Academy of Sciences (Class B)(XDB10010300) ; National Natural Science Foundation of China(41272144 ; National Natural Science Foundation of China(41272144 ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; West Light Foundation of the Chinese Academy of Sciences (Class B) ; 41402130) ; 41402130)
WOS Research AreaEnergy & Fuels
WOS SubjectEnergy & Fuels
WOS IDWOS:000424693100005
PublisherSAGE PUBLICATIONS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93135
Collection兰州油气中心
Corresponding AuthorChen, Guojun
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Gansu Province Key Lab Petr Resources Res, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Yang, Shuang,Chen, Guojun,Lv, Chengfu,et al. Evolution of nanopore structure in lacustrine organic-rich shales during thermal maturation from hydrous pyrolysis, Minhe Basin, Northwest China[J]. ENERGY EXPLORATION & EXPLOITATION,2018,36(2):265-281.
APA Yang, Shuang.,Chen, Guojun.,Lv, Chengfu.,Li, Chao.,Yin, Na.,...&Xue, Lianhua.(2018).Evolution of nanopore structure in lacustrine organic-rich shales during thermal maturation from hydrous pyrolysis, Minhe Basin, Northwest China.ENERGY EXPLORATION & EXPLOITATION,36(2),265-281.
MLA Yang, Shuang,et al."Evolution of nanopore structure in lacustrine organic-rich shales during thermal maturation from hydrous pyrolysis, Minhe Basin, Northwest China".ENERGY EXPLORATION & EXPLOITATION 36.2(2018):265-281.
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