Results 61 to 70 of about 286 (179)

Significance and formation mechanism of abnormally pressured compartments of shale gas in the Ordovician Wufeng-Silurian Longmaxi formations, southeastern Sichuan Basin

Shiyou shiyan dizhi, 2022
Overpressure is commonly existed in shale gas pools of Jiaoshiba and Dingshan structures in the southeastern part of Sichuan and Huangjinba structure in Changning area of the southern region of Sichuan.
Weixin LIU, Longfei LU, Deliao YE, Chencheng HE, Wangwei LIU, Lingjie YU, Wentao ZHANG, Baojian SHEN   +7 more
doaj   +1 more source

Multi‐Criterion Stability Evaluation and Surface Boundary Method for Slopes

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Slope failure generally starts from a single point, where a local failure surface forms, and then progresses to the overall failure. Based on this behavior, this paper proposes a multi‐criterion stability evaluation approach for describing progressive failure process of slope.
Lier Lu, Hao Yang, Yingfa Lu, Shiqi Zhang, Guang-Liang Feng   +4 more
wiley   +1 more source

Dynamic elastic properties of the Wufeng–Longmaxi formation shale in the southeast margin of the Sichuan Basin

Journal of Geophysics and Engineering, 2014
In spite of the growing interest in Late Ordovician to the Early Silurian Wufeng–Longmaxi black shale for gas production in the southeast of the Sichuan Basin, little data is available on the acoustic properties of these shale reservoirs. The dynamic elastic properties of a suite of shales from this formation with different organic matter content were ...
Jixin Deng, Hui Shen, Zhonghua Xu, Zhonggao Ma, Qun Zhao, Chengcheng Li   +5 more
openaire   +1 more source

Investigation of the Enrichment and Accumulation of Normal Pressure Shale Gas in Anchang Syncline Outside of Sichuan Basin

Frontiers in Earth Science, 2022
Gas shales from the Wufeng-Longmaxi Formation in Anchang syncline in northern Guizhou area of Sichuan Basin are stable in distribution and can be classified as type I shale gas reservoir with great resource potential.
Baofeng Lan, Baofeng Lan, Fuping Zhao, Fuping Zhao, Shaopeng Li, Haishen Jiang, Song Liu, Zhiyao Zhang   +7 more
doaj   +1 more source

Characteristics of Micropore Structure and Its Influence on Shale Oil Occurrence: A Case Study From the Second Member of Funing Formation, Subei Basin

Journal of GeoEnergy, Volume 2025, Issue 1, 2025.
To clarify the micropore structure characteristics of shales in the second member of the Funing Formation, Subei Basin and their influence on shale oil occurrence, various tests were conducted, including low‐temperature nitrogen adsorption (LTNA), scanning electron microscopy (SEM), rock pyrolysis, total organic carbon (TOC), and X‐ray diffraction (XRD)
Chenxi Wu, Pengfei Zhang, Junjie Wang, Weizheng Gao, Yangjiang Yi, Wenbiao Li, Nengwu Zhou, Guohui Chen, Shuangfang Lu, Dongjun Song   +9 more
wiley   +1 more source

Enrichment model of shale gas in southeastern Sichuan Basin: a case study of Upper Ordovician Wufeng and Lower Silurian Longmaxi formations in Dingshan area

Shiyou shiyan dizhi, 2021
Based on the understanding of the basic geological conditions of shale gas from the Upper Ordovician Wufeng Formation to the Lower Silurian Longmaxi Formation in Dingshan area of the southeastern Sichuan Basin, the occurrence, migration mode and ...
Kai NI, Mingfa WANG, Xiang LI
doaj   +1 more source

Probing the Behaviour of Fluids Confined in Porous Materials by Neutron Scattering: Applications to CO2 Sequestration and Enhanced Oil and Gas Recovery

ChemPlusChem, Volume 89, Issue 12, December 2024.
Understanding the properties of confined fluids is a challenging research area and a key feature for many applications. The review summarises the utility of neutron scattering for the structural investigation of fluids confined in porous materials.
Konstantinos L. Stefanopoulos
wiley   +1 more source

Shale reservoir characteristics of Ordovician Wufeng-Silurian Longmaxi formations in Dangyang synclinorium, Middle Yangtze region

Shiyou shiyan dizhi, 2020
The petrological and organic geochemical characteristics, reservoir porosity types and features, and gas-bearing characteristics of organic-rich shale were systematically studied using FIB-SEM, mineral contentanalysis, organic geochemical analysis and ...
Jiawei FAN, Kongquan CHEN, Junjun SHEN, Wei ZHU, Xiehua TANG, Junjun LI, Pengwan WANG, Fang ZHANG   +7 more
doaj   +1 more source

Dispositional characteristics of Ordovician Wufeng Formation and Silurian Longmaxi Formation in Sichuan Basin and its adjacent areas

Petroleum Research, 2017
According to data of gas wells and typical sections of Wufeng Formation and Longmaxi Formation in Sichuan Basin, shale of various graptolite zones were analyzed to determine depositional environment, lithology and thickness characteristics of the graptolite shale interval of WF2-WF3 in the lower part of Wufeng Formation, the graptolite shale interval ...
Haikuan Nie, Zhijun Jin, Xin Ma, Zhongbao Liu, Tuo Lin, Zhenheng Yang   +5 more
openaire   +2 more sources

Study on the influence of vertical stress difference coefficient on fracture characteristics of shale under high stress

Energy Science &Engineering, Volume 12, Issue 8, Page 3227-3242, August 2024.
Comprehensive analysis of the effect of vertical geostress difference on the extension pattern of hydraulic fractures in shale: theory, physical, and numerical modeling. Abstract To study the effect of vertical stress difference coefficient on fracture characteristics of shale fracturing, high stress true triaxial hydraulic fracturing test was carried ...
Xin Chang, Guozhou Qiu, Jing Li, Yintong Guo, Zhiwen Hu, Hanzhi Yang, Xinao Zhang, Yongjiang Liu   +7 more
wiley   +1 more source