Results 21 to 30 of about 449 (130)

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  

Study on the Formation Mechanism of Shale Roof, Floor Sealing, and Shale Self-Sealing: A Case of Member I of the Upper Ordovician Wufeng Formation–Lower Silurian Longmaxi Formation in the Yangtze Region

open access: yesFrontiers in Earth Science, 2021
Similar to North America, China has abundant shale resources. Significant progress has been made in the exploration and exploitation of shale gas in China since 2009.
Ziya Zhang   +31 more
doaj   +1 more source

Stratigraphic framework of the Wufeng-Longmaxi shale in and around the Sichuan Basin, China: Implications for targeting shale gas

open access: yesEnergy Geoscience, 2020
Stratigraphic division and correlation are crucial for the identification of sweet spots and drilling design of shale gas. In this study, a stratigraphic division and correlation was carried out for the Wufeng-Longmaxi Formations in southern China from ...
Hongyan Wang   +8 more
doaj   +1 more source

Characterization of 3D pore nanostructure and stress-dependent permeability of organic-rich shales in northern Guizhou Depression, China

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2022
The three-dimensional (3D) pore structures and permeability of shale are critical for forecasting gas production capacity and guiding pressure differential control in practical reservoir extraction.
Xiaofang Jiang   +3 more
doaj   +1 more source

Geological Characteristics of Deep Shale Gas and Their Effects on Shale Fracability in the Wufeng-Longmaxi Formations of the Southern Sichuan Basin, China [PDF]

open access: yesLithosphere, 2023
The deep shale gas reservoirs of the Wufeng-Longmaxi Formations in the southern Sichuan Basin have strong heterogeneity and complex geological characteristics, resulting in a poor fracturing effect and low vertical production.
Jing Li   +4 more
doaj   +1 more source

Geological characteristics of shale in Wufeng-Longmaxi Formation of Bayu outcrop in Daozhen, northern Guizhou

open access: yesYouqicang pingjia yu kaifa, 2022
The upper Ordovician Wufeng Formation and the first member of the lower Silurian Longmaxi Formation are well exposed in Bayu outcrop Daozhen, northern Guizhou, with clear and complete stratigraphic boundaries.
DU Wei   +5 more
doaj  

Depositional environment of shale in Wufeng and Longmaxi Formations, Sichuan Basin

open access: yesPetroleum Research, 2017
Formation of organic-rich shale was controlled by depositional processes and environment condition. According to petrology, mineralogy, fossil composition and sedimentary structure, seven lithofacies of shale were identified in the Wufeng Formation to ...
Jianhua Zhao   +6 more
doaj   +1 more source

The Intensification of Prolonged Cooling Climate-Exacerbated Late Ordovician–Early Silurian Mass Extinction: A Case Study from the Wufeng Formation–Longmaxi Formation in the Sichuan Basin

open access: yesJournal of Marine Science and Engineering, 2023
The Late Ordovician–Early Silurian period was a significant transitional phase in geological history and has garnered global interest. This study focuses on the black shale series of the Wufeng Formation–Longmaxi Formation of the Upper Ordovician–Lower ...
Zhibo Zhang   +5 more
doaj   +1 more source

Fracture pore evaluation of the Upper Ordovician Wufeng to Lower Silurian Longmaxi Formations in southern Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2017
The reservoir characteristics of the Upper Ordovician Wufeng-Lower Silurian Longmaxi Formations in southern Sichuan Basin were preliminarily revealed in this study by identifying and quantitatively evaluating the fracture pores of five appraisal wells in
Yuman WANG   +4 more
doaj   +1 more source

Geological section analysis of drilling in Wufeng-Longmaxi Formation in Well-JY1

open access: yesYouqicang pingjia yu kaifa, 2022
The drilling geological profile of Well-JY1 Wufeng Formation and Longmaxi Formation is the first systematic marine shale gas parameter well profile. The exploration breakthrough of Well-JY1 announces the discovery of Fuling shale gas field, which is ...
LIU Ruobing   +5 more
doaj  

Home - About - Disclaimer - Privacy