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Pore structure evolution and geological controls in lacustrine shale systems with implications for marine shale reservoir characterization [PDF]

Scientific Reports
Understanding pore structure evolution in lacustrine shale systems provides critical insights for marine shale reservoir characterization. This study presents an integrated petrological and petrophysical analysis of a representative lacustrine shale ...
Hu Li, Ziqiang Xu, Xiaodan Gao, Jiatong Xie, Qirong Qin, Haijun Wang, Shun He   +6 more
doaj   +2 more sources

Lithofacies and Pore Features of Marine-Continental Transitional Shale and Gas Enrichment Conditions of Favorable Lithofacies: A Case Study of Permian Longtan Formation in the Lintanchang Area, Southeast of Sichuan Basin, SW China

Petroleum Exploration and Development, 2022
In this work, the Permian Longtan marine-continental transitional shale in the southeast of Sichuan Basin was taken as study object. Through petrology and geochemical analysis, lithofacies types of the marine-continental transitional shale were ...
Enze Wang, Maowen Li, Xiaoxia Dong
exaly   +3 more sources

Pore Fractal Characteristics Between Marine and Marine–Continental Transitional Black Shales: A Case Study of Niutitang Formation and Longtan Formation

Fractal and Fractional
Marine shales from the Niutitang Formation and marine–continental transitional shales from the Longtan Formation are two sets of extremely important hydrocarbon source rocks in South China.
Peng Xia, Fang Hao
exaly   +3 more sources

Complexity and Heterogeneity Evaluation of Pore Structures in the Deep Marine Shale Reservoirs of the Longmaxi Formation, China

Journal of Marine Science and Engineering, 2023
The structural evolution and sedimentary differentiation of the Sichuan Basin in China are complex, with intricate reservoir pore structures that significantly impact shale gas production.
Boyuan Zhu, Jianghui Meng, Chen Song, Renfang Pan, Zhengping Zhu, Jineng Jin   +5 more
doaj   +1 more source

Logging identification of high-quality shale of the marine-continent transitional facies: An example of the Shan 2 Member of the Daning-Jixian area in the Ordos Basin

地质科技通报, 2023
On the southeastern margin of the Ordos Basin, the mineral composition of marine-continent transitional facies deposits is complex. The shale, sandstone, coal, and related lithofacies frequently interact, and the lithology changes rapidly in the vertical
Biao Shi, Feng Wu, Shuxin Li, Yun Liang, Yanping Xi, Jin Dai, Xiangchao Shi, Hui Zhao   +7 more
doaj   +1 more source

Experimental study of water imbibition characteristics of the lacustrine shale in Sichuan Basin

Petroleum, 2023
Through the stimulation method of large-scale hydraulic fracturing, the spontaneous imbibition capacity of the water phase in the shale reservoir has great influence on the effect of stimulation. Generally, the lacustrine shale has the characteristics of
Changgui Jia, Bo Xiao, Lijun You, Yang Zhou, Yili Kang   +4 more
doaj   +1 more source

Geochemical Characteristics of Graptolite Shale in the Pingliang Formation of the Ordos Basin, China: Implications for Organic Matter, Thermal Evolution, and Hydrocarbon Reservoir

Energies, 2022
Graptolite-rich shale is the main layer of shale gas resources in the southern marine sedimentary basin. Recently, shale gas resources were discovered in the Ordovician marine graptolite-rich strata in the Ordos Basin.
Fengjiao Li, Zhengliang Huang, Xiaofeng Wang, Xiaofeng Liu, Wenhui Liu, Zhenghong Cai, Houyong Luo, Qingtao Wang, Dongdong Zhang   +8 more
doaj   +1 more source

A Comparative Study of the Micropore Structure between the Transitional and Marine Shales in China

Geofluids, 2021
To compare the micropore structure of marine-continental transitional shale with marine shale, organic geochemical, field emission scanning electron microscopy, and low-temperature nitrogen adsorption experiments were conducted on shale samples from the ...
Pengfei Jiao, Genshun Yao, Shangwen Zhou, Zhe Yu, Shiluo Wang   +4 more
doaj   +1 more source

Pore Characteristics and Influencing Factors of Marine and Lacustrine Shale in the Eastern Sichuan Basin, China

Energies, 2022
Although almost all the shale gas in China is exploited from marine shale (Wufeng–Longmaxi Formation) in Sichuan Basin and several prolific wells, it has also been obtained in Jurassic lacustrine shale. However, the reservoir conditions of the lacustrine
Jianglin He, Lixia Zhu, Ankun Zhao, Dong Wang, Zhen Qiu, Ping Yang   +5 more
doaj   +1 more source

Pore Structure and Fluid Evaluation of Deep Organic-Rich Marine Shale: A Case Study from Wufeng–Longmaxi Formation of Southern Sichuan Basin

Applied Sciences, 2023
Deeply buried (>3500 m) marine shale has become a focus point for the future exploration and exploitation of shale hydrocarbon in China. Low-temperature nitrogen adsorption (LTNA), scanning electron microscopy (SEM), nuclear magnetic resonance (NMR), and
Guangyin Cai, Yifan Gu, Yuqiang Jiang, Zhanlei Wang   +3 more
doaj   +1 more source