Results 41 to 50 of about 207,928 (204)

Pore structure and fractal characteristics of Wufeng–Longmaxi formation shale in northern Yunnan–Guizhou, China

Frontiers in Earth Science, 2023
In this study, the microscopic pore characteristics of shale in marine strata are evaluated. Based on field emission scanning electron microscopy (FE-SEM), low-temperature N2 adsorption (LT-N2GA), low-pressure CO2 adsorption (LP-CO2GA) and high-pressure methane adsorption (HPMA) experiments, the pore characteristics of 12 shales from the Wufeng ...
Tao Wang, Tao Wang, Tao Wang, Fenghua Tian, Ze Deng, Ze Deng, Haiyan Hu   +6 more
openaire   +2 more sources

Outcrop of Ordovician Wufeng Formation-Silurian Longmaxi Formation in Qilong Village, Xishui, Guizhou

, 2022
As a systematic study of the Wufeng-Longmaxi Formation was carried out by paleontological comparison, thin section identification, scanning electron microscopy and Nitrogen Adsorption Method in Qilong Village outcrop, Xishui, Guizhou Province, the ...
LUO Chao, YE Yuehao, YANG Di, ZHANG Xuan, LIU Shugen, SONG Jinmin, WANG Shiyu, RAN Bo, HAN Yuyue   +8 more
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Black shale of Wufeng-Longmaxi Formation in southeast Chongqing pore type of reservoir

IOP Conference Series: Earth and Environmental Science, 2019
Abstract On the basis of previous research results, a series of studies on black shales of the Upper Ordovician Wufeng Formation and Lower Silurian Longmaxi Formation in southeastern Chongqing have been carried out with thin sections and scanning electron microscopy.
Xiao Weiqi, Xing Enhao
openaire   +1 more source

Geochemical Characteristics and Chemostratigraphic Analysis of Wufeng and Lower Longmaxi Shales, Southwest China

, 2022
The demand for shale gas has propelled researchers to focus on precise and high-resolution stratigraphic divisions for homogeneous shales, of which the late-Ordovician Wufeng (O3w) and the early-Silurian Longmaxi (S1l) formations in southwest China are ...
Shitao Yin, Zhifeng Zhang, Yongjian Huang   +2 more
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An integrated study of the petrographic and geochemical characteristics of organic-rich deposits of the Wufeng and Longmaxi formations, western Hubei Province, South China: Insights into the co-evolution of paleoenvironment and organic matter accumulation

, 2021
An integrated study of the petrographic and geochemical characteristics of organic-rich deposits of the Wufeng and Longmaxi formations, western Hubei Province, South China: Insights into the co-evolution of paleoenvironment and organic matter ...
Bowen Zan (16620474), Qiyu Wang (371956), Jiaxin Yan (7022651), Xiuping Wang (109824), Chuanlong Mou (7013165), Gary G Lash (16620477), Feifei Chen (13069737), Xiangying Ge (16620480), Bin Jin (15273946)   +8 more
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Comprehensive characterization and evaluation of deep shales from Wufeng-Longmaxi Formation by LF-NMR technology

Unconventional Resources, 2022
Marine deep shale gas represents the main target of future shale gas development in China. In order to identify the key parametric characteristics of deep shales, a comprehensive test method and application study was carried out based on LF-NMR technology. The results show that the NMR T2 spectrum of shales varied considerably in different states.
Hongyan Wang, Shangwen Zhou, Shuangshuang Li, Meng Zhao, Te Zhu   +4 more
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Microstructure characteristics of Wufeng-Longmaxi shale gas reservoirs with different depth, southeastern Sichuan Basin

Shiyou shiyan dizhi, 2020
Thin section analysis, X-ray diffraction, conventional scanning electron microscopy (SEM), high-resolution Ar+ ion polishing SEM, mercury intrusion, nitrogen adsorption, total organic carbon (TOC) content and porosity analyses were used to determine the ...
Weixin LIU, Longfei LU, Zhihong WEI, Lingjie YU, Wentao ZHANG, Chenjie XU, Deliao YE, Baojian SHEN, Ming FAN   +8 more
doaj   +1 more source

Paleoenvironment and Organic Matter Accumulation of the Upper Ordovician-Lower Silurian, in Upper Yangtze Region, South China: Constraints from Multiple Geochemical Proxies

Energies, 2020
The origin of the organic-rich shale in the Upper Ordovician Wufeng Formation and Lower Silurian Longmaxi Formation is complex and controversial. This paper reports the geochemical data of Wufeng-Longmaxi Formations in the Upper Yangtze region to restore
Zisang Huang, Xingzhi Wang, Xiyan Yang, Rukai Zhu, Jingwei Cui, Wenrui Shi, Yiqing Zhu   +6 more
doaj   +1 more source

The Volume and Geochemical Characteristics of Desorption Gases From Wufeng–Longmaxi (O3w-S1l) Shale in the Xishui Area, North Guizhou, China

Frontiers in Earth Science, 2022
The Upper Ordovician–Lower Silurian Wufeng–Longmaxi (O3w-S1l) shale is widely distributed in the Xishui area, north Guizhou, China. However, the potential and characteristics of shale gases in the Xishui area are not well evaluated, which has limited the
Shuyong Shi, Shuyong Shi, Shuyong Shi, Yunpeng Wang, Yunpeng Wang, Yu Sun, Yu Sun, Yu Sun, Huijuan Guo, Huijuan Guo, Huijuan Guo   +10 more
doaj   +1 more source

Pyrite type and its effect on shale gas accumulation: a case study of Wufeng-Longmaxi shale in Sichuan Basin and its periphery

Shiyou shiyan dizhi, 2020
Pyrite is one of the most common minerals in shale, but its type, genesis and effect on shale gas accumulation are still in the initial study stage.
Guangrong ZHANG, Haikuan NIE, Xuan TANG, Wei DU, Chuanxiang SUN, Song CHEN   +5 more
doaj   +1 more source