Results 21 to 30 of about 466 (162)

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

open access: yesFrontiers 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   +6 more
openaire   +2 more sources

Comprehensive characterization and evaluation of deep shales from Wufeng-Longmaxi Formation by LF-NMR technology

open access: yesUnconventional 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   +4 more
openaire   +2 more sources

Characteristics and controlling factors of shale reservoir in Wufeng Formation-Longmaxi Formation of the Zheng'an area

open access: yes地质科技通报, 2021
The complex tectonic deformation zone in the east of the Sichuan Basin has a great potential of shale-gas resources, but has not been commercially exploited yet.This paper utilizes the mineralogical, organic chemical, and petrologic data of the Wufeng ...
Fu Zhang   +6 more
doaj   +1 more source

Geological difference and its significance of marine shale gases in South China

open access: yesPetroleum Exploration and Development, 2016
Organic-rich marine shales are developed in both the Cambrian Qiongzhusi Formation and the Ordovician Wufeng Formation–Silurian Longmaxi Formation in South China, but are different in the drilling results of shale gas exploration.
Wenzhi ZHAO   +4 more
doaj   +1 more source

Helium characteristics and resource potential analysis of Wufeng-Longmaxi Formation in Changning area, southern Sichuan [PDF]

open access: yesYouqicang pingjia yu kaifa
Helium has characteristics such as a low boiling point, high thermal conductivity, and strong inertness. It plays a key role in fields such as low-temperature superconductivity, protective gas, refrigeration, medical treatment, and electronics, and is ...
YU Zhenxiang, CHEN Lei, CHEN Xin, LIU Rui, TAN Xiucheng, WU Shuaicai, QIN Hexing, XU Qiang
doaj   +3 more sources

Types of biogenic quartz and its coupling storage mechanism in organic-rich shales: A case study of the Upper Ordovician Wufeng Formation to Lower Silurian Longmaxi Formation in the Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2021
Biogenic quartz in the Upper Ordovician Wufeng Formation to Lower Silurian Longmaxi Formation (Wufeng– Longmaxi) shale layers in the Sichuan Basin and its periphery is qualitatively analyzed and quantitatively characterized by organic petrologic ...
Quanzhong GUAN   +5 more
doaj   +1 more source

Black shale of Wufeng-Longmaxi Formation in southeast Chongqing pore type of reservoir

open access: yesIOP 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

Depositional Environment and Organic Matter Enrichment in the Lower Paleozoic Shale from the Northeastern Margin of the Yangtze Platform, South China

open access: yesJournal of Marine Science and Engineering, 2023
In this study, twenty-six core shale samples were collected from the marine Lower Paleozoic shale in a well in the northeastern margin of the Yangtze Platform.
Peng Liu, Changjie Liu, Ruiliang Guo
doaj   +1 more source

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

open access: yesYouqicang pingjia yu kaifa, 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 ...
LIU Shugen   +8 more
doaj  

Hydrocarbon generation and storage mechanisms of deep-water shelf shales of Ordovician Wufeng Formation–Silurian Longmaxi Formation in Sichuan Basin, China

open access: yesPetroleum Exploration and Development, 2020
As the hydrocarbon generation and storage mechanisms of high quality shales of Upper Ordovician Wufeng Formation- Lower Silurian Longmaxi Formation remain unclear, based on geological conditions and experimental modelling of shale gas formation, the ...
Xusheng GUO   +7 more
doaj   +1 more source

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