Results 51 to 60 of about 674 (167)

Structural evolution of the Huangling uplift, South China: Implications for the shale gas exploration in the middle and lower Yangtze River area

open access: yesDizhi lixue xuebao, 2022
Significant discoveries and breakthroughs have been made in the shale gas exploration in the southern slope zone of the Huangling uplift, periphery of the Sichuan basin.
WANG Buqing, XIAO Yuexin, XU Qiuchen
doaj   +1 more source

Bimodal In Situ Analyzer for Circular RNA in Extracellular Vesicles Combined with Machine Learning for Accurate Gastric Cancer Detection

open access: yesAdvanced Science, Volume 12, Issue 15, April 17, 2025.
They developed a bimodal EV‐circRNA in situ analyzer (BEISA) using a DNA rectangular frame‐guided hybridization chain reaction (RF‐HCR) system. By combining ML algorithms and bimodal EV‐circRNA in situ analysis, this platform provides a promising tool for the analysis of gastric cancer‐derived EV‐circRNA, making diagnosis and staging of gastric cancer ...
Yuhang Guo   +11 more
wiley   +1 more source

Hydrothermal dolomitization in Dengying Formation, Gaoshiti-Moxi area, Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2016
: The formation conditions, existence evidence, modification modes and timing of hydrothermal dolomitization in the Sinian Dengying Formation are studied based on the basic geological conditions, mineral assemblages in dolomites, and geochemical features
Yuqiang Jiang   +7 more
doaj   +1 more source

Geophysics Indicator of Sandstone‐Type Uranium Mineralization in the Northern Ordos Basin, China: Analysis From Gravity and Magnetic Data

open access: yesEarth and Space Science, Volume 12, Issue 3, March 2025.
Abstract Ordos Basin, one of the largest uranium resource areas in China, holds significant potential due to its favorable metallogenic geological conditions and promising potential. Early exploration efforts primarily targeted sandstone‐hosted uranium deposits.
M. L. Xu   +6 more
wiley   +1 more source

Magnetic field and rotor impedance analysis of solid rotor induction motors using the multilayer analytical method

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
A multi‐layer analytical model for calculating the magnetic field and equivalent circuit parameters of solid rotor induction motors is proposed, which can consider the effects of saturation effect and end effect of the solid rotor. The accuracy of the analytical model is verified by finite element simulation and prototype test.
Hao Xu   +3 more
wiley   +1 more source

Accumulation conditions and exploration directions of natural gas in deep subsalt Sinian-Cambrian System in the eastern Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2015
Based on comprehensive analysis of outcrops and drilling data, and interpretation of more than 6×104 km2 seismic data, this paper delineates the regional distribution of the gypsum-salt layers in Middle-Lower Cambrian in eastern Sichuan Basin, and ...
Zhidong GU   +6 more
doaj   +1 more source

Towards an improved understanding of Ca–Mg carbonates with nonplanar surfaces: An experimental approach

open access: yesSedimentology, Volume 72, Issue 1, Page 100-131, January 2025.
ABSTRACT Saddle dolomite is a Ca–Mg carbonate characterized by curved crystal faces, curved cleavage and sweeping extinction under cross‐polarized light. Saddle dolomite and, generally, Ca–Mg carbonates with curved crystal faces, are often assigned to the burial (hydrothermal) realm and serve as proxy archives for hydrogeochemical processes in ...
Yi‐Fan Zhang   +7 more
wiley   +1 more source

Enrichment Mechanism of the Organic‐Rich Shale in Ediacaran Doushantuo Formation in Western Sichuan Basin, South China

open access: yesGeofluids, Volume 2025, Issue 1, 2025.
The Ediacaran Doushantuo Formation in South China has been increasingly recognized as a significant potential source rock for hydrocarbon reservoirs, particularly in relation to the overlying Dengying Formation. This study conducts a comprehensive geochemical analysis of the organic‐rich shale from the Ebian‐Xianfeng section within the Sichuan Basin ...
Bokai Dai, Xingzhi Ma, Fan Yang
wiley   +1 more source

Height Propagation Law and Controlling Strategies of Acid Fractures in Carbonate Gas Reservoirs With Bottom Water Layer Under Different Stress Profiles

open access: yesGeofluids, Volume 2025, Issue 1, 2025.
Acid fracturing is currently employed to develop the carbonate gas reservoir in the second section of the Dengying Formation at the Anyue Gas Field, Sichuan Basin. However, improper acid‐fracturing operational parameters pose a risk of fracture communication with the bottom water layer, leading to increased water production and a significant decline in
Jian Yang   +8 more
wiley   +1 more source

The strata and palaeo-geomorphology framework at the end of neoproterozoic and development mode of source rocks at the beginning of Cambrian in Tarim Basin, China

open access: yesJournal of Natural Gas Geoscience, 2017
Referred to the new recognition from petroleum exploration of the Sinian to Cambrian in South China, it could be considered that the distribution of the early Cambrian source rocks was controlled by the palaeo-geomorphology at the end of Neoproterozoic ...
Xin Yang   +5 more
doaj   +1 more source

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