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Characterization and origin of the Silurian Wufeng-Longmaxi Formation shale multiscale heterogeneity in southeastern Sichuan Basin, China

Jiang Zhenxue, Tang Xianglu, Cheng Lijun, Li Zhuo, Zhang Yingying, Bai Yongqiang, Yuan Yuan and Hao Jin
Characterization and origin of the Silurian Wufeng-Longmaxi Formation shale multiscale heterogeneity in southeastern Sichuan Basin, China (in China shale gas and shale oil plays, Shu Jiang (prefacer), Hongliu Zeng (prefacer), Zhang Jinchuan (prefacer), Neil Fishman (prefacer), Baojun Bai (prefacer), Xiao Xianming (prefacer), Tongwei Zhang (prefacer), Geoffrey Ellis (prefacer), Li Xinjing (prefacer), Bryony Richards-McClung (prefacer), Cai Dongsheng (prefacer) and Ma Yongsheng (prefacer))
Interpretation (Tulsa) (May 2015) 3 (2): SJ61-SJ74

Abstract

Shale heterogeneity is important for micro- to macroscale-quality reservoir prediction. We evaluated the multiscale heterogeneity in shale based on thin-section observation, field emission scanning electron microscope observation, low-pressure N (sub 2) adsorption analysis, mercury intrusion porosimetry, organic carbon analysis, and bulk chemical analysis by X-ray powder diffraction. We evaluated the results in which the heterogeneity of minerals and organic matter in shale was shown by disorderly and unsystematically distributed mineral grains, lamina, and rapid lithology at multiple scales. The random arrangement of minerals, seasonal climate changes, large changes of sedimentary environment, and the provenance supply was considered to be the origin of the heterogeneity from the micro- to the macroscale in shale. In addition, a multiscale heterogeneity distribution model of marine shale in southeastern Sichuan basin was established, which can be used to predict shale gas distribution from the micro- to the macroscale.


ISSN: 2324-8858
EISSN: 2324-8866
Serial Title: Interpretation (Tulsa)
Serial Volume: 3
Serial Issue: 2
Title: Characterization and origin of the Silurian Wufeng-Longmaxi Formation shale multiscale heterogeneity in southeastern Sichuan Basin, China
Title: China shale gas and shale oil plays
Author(s): Jiang ZhenxueTang XiangluCheng LijunLi ZhuoZhang YingyingBai YongqiangYuan YuanHao Jin
Author(s): Jiang, Shuprefacer
Author(s): Zeng, Hongliuprefacer
Author(s): Zhang Jinchuanprefacer
Author(s): Fishman, Neilprefacer
Author(s): Bai, Baojunprefacer
Author(s): Xiao Xianmingprefacer
Author(s): Zhang, Tongweiprefacer
Author(s): Ellis, Geoffreyprefacer
Author(s): Li Xinjingprefacer
Author(s): Richards-McClung, Bryonyprefacer
Author(s): Cai Dongshengprefacer
Author(s): Ma Yongshengprefacer
Affiliation: China University of Petroleum, Laboratory of Petroleum Resources and Prospecting, Beijing, China
Affiliation: University of Utah, Energy and Geoscience Institute, Salt Lake City, UT, United States
Pages: SJ61-SJ74
Published: 201505
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 44
Accession Number: 2015-073912
Categories: Economic geology, geology of energy sources
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, sketch map
Secondary Affiliation: Bureau of Economic Geology, USA, United StatesChina University of Geosciences, CHN, ChinaHess Corporation, USA, United StatesMissouri University of Science and Technology, USA, United StatesChinese Academy of Sciences, Guangzhou Institute of Geochemistry, CHN, ChinaU. S. Geological Survey, USA, United StatesPetroChina, CHN, ChinaChina National Offshore Oil Corporation, CHN, ChinaSinopec, CHN, ChinaChongqing Institute of Geology and Mineral Resources, CHN, ChinaNortheast Petroleum University, CHN, China
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201532
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