Influence of Mineral Compositions on Shale Pore Development of Longmaxi Formation in the Dingshan Area, Southeastern Sichuan Basin, China

2021 ◽  
Author(s):  
Shun He ◽  
Hu Li ◽  
Qirong Qin ◽  
Shengxiang Long
Keyword(s):  
Sichuan Basin ◽  
Longmaxi Formation ◽  
Mineral Compositions ◽  
Southeastern Sichuan Basin

Micro-Characteristics of the Shale in the First Member of Silurian Longmaxi Formation in Southeastern Sichuan Basin, China

2017 ◽  
Vol 17 (9) ◽  
pp. 6662-6669 ◽  
Author(s):  
Shengxiang Long ◽  
Yongmin Peng ◽  
Hua Liu ◽  
Chunpeng Zhao ◽  
Jianhua Zhao ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Longmaxi Formation ◽  
Southeastern Sichuan Basin

scholarly journals Characteristics, capability, and origin of shale gas desorption of the Longmaxi Formation in the southeastern Sichuan Basin, China

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Xianglu Tang ◽  
Zhenxue Jiang ◽  
Shu Jiang ◽  
Lijun Cheng ◽  
Ningning Zhong ◽  
...  
Keyword(s):  
Shale Gas ◽  
Sichuan Basin ◽  
Longmaxi Formation ◽  
Gas Desorption ◽  
Southeastern Sichuan Basin

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

2015 ◽  
Vol 3 (2) ◽  
pp. SJ61-SJ74 ◽  
Author(s):  
Zhenxue Jiang ◽  
Xianglu Tang ◽  
Lijun Cheng ◽  
Zhuo Li ◽  
Yingying Zhang ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Multiple Scales ◽  
Sedimentary Environment ◽  
Distribution Model ◽  
Reservoir Prediction ◽  
Longmaxi Formation ◽  
Random Arrangement ◽  
Adsorption Analysis ◽  
Bulk Chemical ◽  
Southeastern Sichuan Basin

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 [Formula: see text] 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.

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