Results 1 to 10 of about 171 (97)

Shale petrofacies division of Wufeng-Longmaxi formations in Sichuan Basin and its periphery

Shiyou shiyan dizhi, 2020
The research of shale petrofacies is significant for the exploration of shale gas "sweet spots". Different petrographic division schemes have been proposed but no consensus has been reached.
Tao YUAN, Xiangfeng WEI, Hanrong ZHANG, Chunyan LI, Fubin WEI, Longfei LU, Qiang WANG   +6 more
doaj   +2 more sources

Origin and carbon isotope reversal of shale gas in Wufeng-Longmaxi formations, Sichuan Basin: implication from pyrolysis experiments

Shiyou shiyan dizhi, 2020
The Wufeng-Longmaxi shale in the Sichuan Basin is the only stratum in China to realize commercial development of shale gas. There are some differences in shale gas generation and a lack of direct experimental evidence of the reasons for these differences.
Zhongliang MA, Baojian SHEN, Anyang PAN, Tenger BORJIGIN, Chuanxiang NING, Lunju ZHENG   +5 more
doaj   +2 more sources

Microscopic characteristics and geological significance of pyrite in shales of the Wufeng-Longmaxi formations, southeastern Chongqing, China

Energy Geoscience
Shales of the Wufeng-Longmaxi formations in the basin-margin transition zone of southeastern Chongqing, China are characterized by high organic matter content and a significant presence of pyrite development.
Xiao Cai, Wei Xia, Yuxia Liu, Shunzhou Liao, Lei Zhang, Weixue Hu, Li Liu, Wei Li, Fanwu Zeng   +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   +1 more source

Gas-bearing characteristics and preservation conditions of Upper Ordovician Wufeng-Lower Silurian Longmaxi shale in western Hubei

Shiyou shiyan dizhi, 2021
The Upper Ordovician Wufeng to Lower Silurian Longmaxi formations are important exploration targets for shale gas in the western Hubei province. The lithology, sedimentary facies, gas-bearing characteristics and preservation conditions of the Wufeng ...
Lulu XU, Yaru WEN, Yanlin ZHANG, Zhijun REN, Jie YANG, Jianhang WEN, Wei CHEN, Fan LUO, Ke DUAN   +8 more
doaj   +1 more source

Wave velocity in shale in the Wufeng-Longmaxi formation in Sichuan Basin

Journal of Geophysics and Engineering, 2022
Abstract Analyzing the pattern of wave velocity is important for velocity prediction and amplitude-versus-offset analysis during unconventional seismic exploration. Several parameters, including the maturity and microstructure of organic matter (OM), the wave velocity, the mineral composition and the density of shale from Upper ...
Zichun Liu, Rong Peng, Xiangyang Li, Xiangdong Du, Zhenyu Zhu, Xin Li, Huafei Li   +6 more
openaire   +1 more source

Geochemical characteristics and resource potential of shale gas in Sichuan Basin, China

Journal of Natural Gas Geoscience, 2021
Shale gas is a green, low-carbon and clean unconventional natural gas energy. China is rich in shale gas resources. Accelerating shale gas exploration and development is of great practical significance to improve China's energy structure and achieve the ...
Jian Li, Xiaobo Wang, Lianhua Hou, Chang Chen, Jianying Guo, Chunlong Yang, Yifeng Wang, Zhisheng Li, Huiying Cui, Aisheng Hao, Lu Zhang   +10 more
doaj   +1 more source

Organic Matter of the Wufeng–Longmaxi Formation Shales Using Scanning Electron Microscopy

Sustainability, 2023
Fine-grained organic matter (OM) particles are commonly widely dispersed in shale deposits. However, carrying out investigations of pores hosted by OM particles and the nature of grain interactions in OM particles and associated detrital grains using optical microscopy is difficult at best.
Jing Wang, Fawang Ye, Gary G. Lash, Zhaodong Xi   +3 more
openaire   +1 more source

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

Journal 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, Shouchun Deng, Haibo Li, Hong Zuo   +3 more
doaj   +1 more source

Complex Resistivity Anisotropy Response Characteristics of Wufeng-Longmaxi Formation Shale in Southern Sichuan

Minerals, 2022
Electrical exploration has become an important means of shale gas reservoir exploration and evaluation, and is expected to play a key role in the later stages of reservoir fracturing and development. At present, the research on the electrical response characteristics of shale gas reservoirs and their relationship with reservoir parameters is extensive ...
Kui Xiang, Liangjun Yan, Gongxian Tan, Yuanyuan Luo, Gang Yu   +4 more
openaire   +1 more source