Results 81 to 90 of about 4,181,948 (200)

New Evidences of Fluid Inclusions from Wufeng Formation Reveal Shale Gas Accumulation and Leakage Histories in Northern Guizhou, Southwestern China [PDF]

open access: yesLithosphere
Shale gas accumulation and leakage histories are significant for evaluating the prospects of hydrocarbon exploration. The Wufeng Formation in northern Guizhou is a potential target for shale gas exploration and development.
Yisong Wang   +9 more
doaj   +1 more source

Accurate Determination of the Age of the Carbonaceous Mudstone of the Ordovician-Silurian Boundary in Zheng'an County, Guizhou Province by Re-Os Isotope Dating Method and Its Application in Paleoenvironmental Inversion

open access: yesYankuang ceshi, 2020
BACKGROUND Organic-rich sedimentary rocks of the Wufeng-Longmaxi Formation are widely developed in the Ordovician-Silurian boundary of the Upper Yangtze platform in China, which is rich in shale gas resources. Using the Re-Os isotope system to study this
LI Xin-wei   +3 more
doaj   +1 more source

Revised phylogeny of the Inula complex group (Asteraceae: Inuleae) with a recircumscription of Carpesium and establishment of a new genus Cladocarpesium

open access: yesJournal of Systematics and Evolution, Volume 64, Issue 1, Page 95-105, January 2026.
Cladocarpesium T. Deng & Qun Liu, gen. nov. (separated from Carpesium) is established with Cladocarpesium abrotanoides (L.) T. Deng & Qun Liu designated as the type species. The new genus is morphologically distinguished from Carpesium s.str. by its sympodial growth form (typically producing three branches), sessile capitula, and three‐seriate ...
Qun Liu   +8 more
wiley   +1 more source

Precise Characterization of Fluid Logging Responses in Complex Shale Reservoirs: A Case Study From the Hongxing Area, Eastern Sichuan Basin

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
Precise characterization of fluid‐sensitive logging responses in complex shale reservoirs is very important. It is essential for quantitative formation evaluation and development optimization. Based on a case study of the shale gas reservoir in the second member of the Wujiaping formation (hereinafter referred to as the Wu‐2 Member) in the Hongxing ...
Pei Deng   +4 more
wiley   +1 more source

Wufeng Formation radiolarians Micro-Computed Tomography

open access: yes
Supplementary material 1: Video file of synchrotron microCT imaging of mini-core WFMZ05MC01 Upper Katian black shales with radiolarians, Wufeng Formation, Sichuan Basin, China Supplementary material 2: Full systematics for all taxa recovered as part of ...

core   +1 more source

Full‐Scale Pore Structure Characterization of the Late Permian Dalong Shale in Western Hubei, Southern China

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
The Late Permian Dalong Formation in western Hubei has recently been recognized as a promising target for shale gas development. However, the comprehensive characterization of its pore structure remains limited. To elucidate the pore system of the Dalong shale, an integrated experimental approach was applied to outcrop‐derived samples.
Bei Liu   +6 more
wiley   +1 more source

Application of High-temperature Methane Adsorption Experiment to Study the Adsorption Capacity of Methane in Shales from the Wufeng Formation, Northeast Sichuan

open access: yesYankuang ceshi, 2020
BACKGROUND Shale methane adsorption capacity is not only a significant parameter to determine the exploration and exploitation plan, but also a critical criterion to evaluate the potential of a shale gas reservoir.
ZHANG Ye-yu   +5 more
doaj   +1 more source

Identifying Framboidal Pyrrhotite: A Proxy for Hydrothermal Alteration of Organic‐Rich Sediments

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Framboidal pyrrhotite, in sharp contrast to framboidal pyrite, has been rarely reported, and its formation remains poorly understood. Here we report its clear identification in a shale‐gas well core and explore its potential as a proxy for diagenesis or low‐grade metamorphism of organic‐rich sediments.
Y. Wang   +7 more
wiley   +1 more source

Gas-in-Place (GIP) Variation and Main Controlling Factors for the Deep Wufeng-Longmaxi Shales in the Luzhou Area of the Southern Sichuan Basin, China

open access: yes, 2023
The Wufeng-Longmaxi Formation shales with burial depths > 3 500 m in the southern Sichuan Basin are believed to have large shale gas potentials. However, the reservoir properties and gas-in-place (GIP) contents of these shales exhibit variations across ...
Haifeng Gai   +19 more
core   +1 more source

Organic Geochemical Characteristics of the Shale from Y1 Well in Chengkou Area of Northeastern Chongqing and Exploration Prospects

open access: yesYankuang ceshi, 2018
A study has been conducted based on the drilling data and geochemical data from the Y1 Well in Chengkou of Northeastern Chongqing, including total organic carbon (TOC), kerogen microcomponent, equivalent vitrinite reflectance (Ro) and carbon isotope ...
HE Ting-peng   +5 more
doaj   +1 more source

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