Results 21 to 30 of about 1,169 (194)

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

Journal 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, Yinghai Guo, Hengye Wei, Chunlin Zeng, Jiaming Zhang, Difei Zhao   +5 more
doaj   +2 more sources

Characteristics and exploration significance of Wufeng-Longmaxi Formation stratigraphic section in Mount Huaying, Sichuan Basin

Youqicang pingjia yu kaifa, 2022
In recent years, the exploration of Longmaxi Formation in Sichuan Basin has been successful, but the shale gas of the complex structural belt’s Longmaxi Formation are still the next areas for exploration.
XIONG Liang, DONG Xiaoxia, ZHAO Yong, WEI Limin, WANG Tong, WANG Yan   +5 more
doaj   +2 more sources

Discussion on the contribution of graptolite to organic enrichment and gas shale reservoir: A case study of the Wufeng–Longmaxi shales in South China

Journal of Natural Gas Geoscience, 2018
The graptolitic shale of the Wufeng–Longmaxi Formations is widely deposited across the Ordovician and Silurian transition in South China, which is the target of shale gas exploration and development within China.
Zhen Qiu, Caineng Zou, Xizhe Li, Hongyan Wang, Dazhong Dong, Bin Lu, Shangwen Zhou, Zhensheng Shi, Ziqi Feng, Mengqi Zhang   +9 more
doaj   +2 more sources

Development Characteristics and Distribution Patterns of Fractures in the Wufeng-Longmaxi Formation Shale in the Southwestern Sichuan Basin, China

Lithosphere, 2022
Abstract As the important storage space and main seepage channel of the shale gas reservoirs, fractures control the migration, enrichment, and preservation of shale gas. Therefore, studying the development characteristics of fractures within shale is the key to the exploration and development of shale gas reservoirs.
Jianhua Dong, Lei Chen, Yang Yang, Xiucheng Tan, Jian Zheng, Cui Jing   +5 more
openaire   +3 more sources

Differential Reservoir-Forming Mechanisms of the Lower Paleozoic Wufeng-Longmaxi and Niutitang Marine Gas Shales in Northern Guizhou Province, SW China: Theories and Models

Energies, 2022
Fine dissection of microscopic pore structure variations between the Niutitang Formation and the Wufeng-Longmaxi Formation will help to improve the understanding of the underlying geological theory of shale gas in northern Guizhou Province.
Wei Du, Wei Yang, Xingyu Li, Fulun Shi, Ruiqin Lin, Yisong Wang, Daquan Zhang, Yi Chen, Zhao Sun, Fuping Zhao   +9 more
doaj   +2 more sources

Development of Upwelling during the Sedimentary Period of the Organic-Rich Shales in the Wufeng and Longmaxi Formations of the Upper Yangtze Region and Its Impact on Organic Matter Enrichment

Journal of Marine Science and Engineering, 2019
This study uses logging data, mineral component content, total organic carbon (TOC) content, and microscopic characteristics of the organic-rich shales in the Wufeng and Longmaxi Formations, as well as data reported by other researchers, to demonstrate ...
Shao-Ze Zhao, Yong Li, Hua-Jun Min, Tong Wang, Zhou Nie, Zhan-Zhao Zhao, Jia-Zhen Qi, Jin-Cheng Wang, Jia-Peng Wu   +8 more
doaj   +2 more sources

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

Lithosphere, 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, Hu Li, Cheng Yang, Xiaohai Ren, Yading Li   +4 more
doaj   +2 more sources

Characteristics and significance of hydrocarbon-forming organisms of Wufeng-Longmaxi formation in Pengshui and its adjacent areas

Youqicang pingjia yu kaifa, 2019
By the observation of the organic microscopic composition and scanning electron microscopy of the whole rock, the black shale of the Upper Ordovician Wufeng-Lower Silurian Longmaxi formation in Pengshui and its adjacent core wells Microscopic observation,
YANG Zhenheng, ZHAI Changbo, DENG Mo, BAO Yunjie, ZHANG Peixian, ZHANG Qingzhen, XIE Xiaomin   +6 more
doaj   +2 more sources

Three-Dimensional Morphology and Connectivity of Organic Pores in Shale from the Wufeng and Longmaxi Formations at the Southeast Sichuan Basin in China

Geofluids, 2021
Organic pores play an important role in shale reservoirs. Organic pores occur where shale gas was produced and accumulated. However, there is little scientific understanding of the distribution and connectivity of organic pores.
Tao Jiang, Zhijun Jin, Zongquan Hu, Wei Du, Zhongbao Liu, Jianhua Zhao   +5 more
doaj   +2 more sources

Structural detachment influences the shale gas preservation in the Wufeng-Longmaxi Formation, Northern Guizhou Province

Open Geosciences
Abstract In order to reveal the restriction in shale gas enrichment of the Wufeng-Longmaxi Formation in the northern Guizhou province, the influence model of detachment layer was established through field geological investigation, core observation, logging, sample analysis, and geological background data.
Shi, Sheng, Wang, Ganlu, Mou, Yuliang, Wei, Xiangfeng   +3 more
openaire   +3 more sources