Results 91 to 100 of about 207,928 (204)

Structural deformation characteristics and shale gas preservation conditions in the Zhaotong National Shale Gas Demonstration Area along the southern margin of the Sichuan Basin

open access: yesNatural Gas Industry B, 2020
The Zhaotong National Shale Gas Demonstration Area along the southern margin of the Sichuan Basin is located in the complex marine tectonic area of South China, where shale deformation and reformation are intense and the factors controlling sweet spots ...
Zhengyu Xu   +10 more
doaj   +1 more source

Mechanisms of shale gas generation and accumulation in the Ordovician Wufeng-Longmaxi Formation, Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2017
The source rock quality, organic pore structure, occurrence state and sealing mechanisms of shale gas in the Ordovician Wufeng – SilurianLongmaxi Formation (O3w-S1l), Fuling region, Sichuan Basin were studied using a series of techniques including ultra-microscopic organic maceral identification, FIB-SEM, high temperature/pressure isothermal adsorption
Tenger BORJIGIN   +9 more
openaire   +2 more sources

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

Orbital and Millennial‐Scale Cycles Through the Hirnantian (Late Ordovician) in Southern China

open access: yesGeochemistry, Geophysics, Geosystems, Volume 25, Issue 1, January 2024.
Abstract The Hirnantian period, making the end of the Ordovician with significant mass extinctions and large ice‐sheets, is a critical interval for studying paleoclimate variations. This research represents the first cyclostratigraphic study of this period, utilizing high‐resolution (1 mm sampling rate) geochemical data from the ∼7‐m thick SH‐1 drill ...
Siding Jin   +5 more
wiley   +1 more source

Using nanoindentation to quantify the mechanical profile of the Wufeng–Longmaxi Formation in southwestern China: link to sedimentary conditions

open access: yesSolid Earth
Abstract. The fine construction of a continuous mechanical profile for the Wufeng–Longmaxi (WF-LMX) Formation is crucial for designing hydraulic fracturing projects in shale gas development, which however is generally difficult to achieve by conventional macroscopic mechanical testing methods due to the difficulty in obtaining continuous block shale ...
Wang, Jianfeng   +12 more
openaire   +2 more sources

Comparative Analysis of Shale Gas Enrichment and High Yield Geological Conditions of Wufeng–Longmaxi Formation and Qiongzhusi Formation in Southern Sichuan Basin

open access: yesGeofluids, Volume 2024, Issue 1, 2024.
Wufeng–Longmaxi Formation and Qiongzhusi Formation are the significant shale gas exploration strata in China. The former has made a major breakthrough, and the exploration of the latter is restricted. At present, it shows good exploration potential in the Qiongzhusi Formation.
Majia Zheng   +9 more
wiley   +1 more source

Micropore structure and fractal characteristics of shale in Midwest China

open access: yesJournal of Petroleum Exploration and Production Technology
To further clarify the optimal target layer in the horizontal section of Wufeng–Longmaxi shale, we selected 126 shale samples from the Wufeng–Longmaxi Formations (Long11 1 to Long11 4 and Long12 submember) as the primary study objects from the ...
Rui Shen   +5 more
doaj   +1 more source

Genesis of pore-fracture systems in shallow marine shale gas reservoirs and its significance for "sweet window" prediction: coupling constraints from dynamic and static gas accumulation elements

open access: yesShiyou shiyan dizhi
The shallow marine shale gas reservoirs in the Upper Ordovician Wufeng Formation and the Lower Silurian Longmaxi Formation of residual synclines in northern Guizhou have experienced episodic tectonic superimposed reformation.
Wei YANG   +8 more
doaj   +1 more source

A Case Study on Preservation Conditions and Influencing Factors of Shale Gas in the Lower Paleozoic Niutitang Formation, Western Hubei and Hunan, Middle Yangtze Region, China

open access: yesGeofluids, Volume 2024, Issue 1, 2024.
The Niutitang Formation of the lower Cambrian (Є1n) is a target reservoir of shale gas widely developed in China’s Middle‐Upper Yangtze region, with the characteristics of being widely distributed, having a big thickness and highly organic carbon abundance. However, the exploration and research degree are relatively low. Based on extensive core sample,
Shengling Jiang   +4 more
wiley   +1 more source

Interactive Forward and Inversion Scheme‐Based Anisotropic Correction for Shale Gas Horizontal Well Sonic Logs and Its Application

open access: yesInternational Journal of Energy Research, Volume 2024, Issue 1, 2024.
Well logging interpretation and evaluation of reservoirs in horizontal wells plays an important role in shale gas exploration and development. The accuracy of the interpreted petrophysical parameters is directly affected by well logging curves. This study focuses on a horizontal well targeting deep shale gas layers in the Luzhou block, Southern Sichuan
Xiaoxue Qiu   +8 more
wiley   +1 more source

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