Results 81 to 90 of about 885 (217)

Crude oil mobility and its controlling factors in tight sand reservoirs in northern Songliao Basin, East China

open access: yesPetroleum Exploration and Development, 2019
Taking tight oil in Gaotaizi and Fuyu oil layers of the Upper Cretaceous Qingshankou Formation in northern Songliao Basin as an example, based on analyses of nuclear magnetic resonance and high pressure mercury injection, experiment methods of ...
Jun FENG   +11 more
doaj   +1 more source

Exploration breakthrough and its significance of Gulong lacustrine shale oil in the Songliao Basin, Northeastern China

open access: yesEnergy Geoscience, 2022
Lacustrine shale oil resources are abundant in many petroliferous basins in China. The shale oil formations are characterized by low API gravity, high viscosity, poor mobility, high clay content, low brittleness and etc.
Zhijun Jin, Xinping Liang, Zhenrui Bai
doaj   +1 more source

Iron–Phosphorus–Carbon Coupled Cycling in Lacustrine System of Ordos Basin During the Middle Triassic

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Widespread organic‐rich shales are associated with perturbations in productivity or preservation conditions; however, the major controlling factors, especially the phosphorus (P) and iron (Fe) interactions and their impacts on organic carbon burial in the paleolake ecosystem remain poorly understood.
Bo Wang   +7 more
wiley   +1 more source

Pore structure and fractal characteristics of Wufeng–Longmaxi formation shale in northern Yunnan–Guizhou, China [PDF]

open access: yes, 2023
In this study, the microscopic pore characteristics of shale in marine strata are evaluated. Based on field emission scanning electron microscopy (FE-SEM), low-temperature N2 adsorption (LT-N2GA), low-pressure CO2 adsorption (LP-CO2GA) and high-pressure ...
Fenghua Tian   +6 more
core   +1 more source

Multiscale NMR Characterization in Shale: From Relaxation Mechanisms to Porous Media Research Frontiers

open access: yesEnergy Science &Engineering, Volume 13, Issue 11, Page 5777-5798, November 2025.
ABSTRACT Nuclear magnetic resonance (NMR), as an advanced non‐destructive and rapid measurement technology, has shown unique advantages in the evaluation of unconventional shale reservoirs. This paper systematically introduces the fundamental principles of NMR spectroscopy and relaxation theory in porous media and comprehensively analyzes the ...
Long Zhou   +8 more
wiley   +1 more source

Lithofacies and Source Rock Quality of Organic-Rich Shales in the Cretaceous Qingshankou Formation, Songliao Basin, NE China

open access: yesMinerals, 2022
The organic-rich shale of the Qingshankou Formation (K2qn) is the most important target in the Songliao Basin. The relationship between lithofacies and source rock quality, however, is still controversial. Core observation, thin section identification, X-ray diffraction, organic geochemistry, and other analytical methods were adopted to investigate the
Yi Cai   +10 more
openaire   +1 more source

Hydrocarbon Generation Characteristics and Geological Significance of Deep Organic‐Rich Shales in the Gulong Fault Depression, Songliao Basin, Northeastern China

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 2707-2719, June 2025.
ABSTRACT To evaluate the hydrocarbon generation characteristics and geological significance of deep‐source rocks in the Gulong Sag of the Songliao Basin and to identify the next exploration targets in the study area, this study focuses on the organic‐rich mudstones and shales from the deep formations of the Gulong Sag.
Bo Hu   +6 more
wiley   +1 more source

Provenance and Uranium Source Characteristics of Red and Variegated Uranium-bearing Strata in Southern Songliao Basin and Uranium Mineralization

open access: yesYuanzineng kexue jishu
The Songliao basin, China’s largest northeastern sedimentary basin, is a key uranium basin with unique sandstone-type uranium-hosting conditions. To clarify the uranium-mineralization regularities in the southern part of the basin and locate favorable ...
XIAO Jing1, 2, GUO Qiang1, 2, QIN Mingkuan1, 2, YAN Zhanglei3, NING Jun4, LIAO Chunfu5
doaj   +1 more source

Potential resources of conventional, tight, and shale oil and gas from Paleogene Wenchang Formation source rocks in the Huizhou Depression [PDF]

open access: yes, 2022
Conventional and tight unconventional oil and gas resources in the Huizhou Depression have shown broad exploration prospects, which mainly originate from Wenchang Formation source rocks. Thus far, studies on Wenchang Formation source rocks mainly focused
Hu, Tao   +5 more
core   +1 more source

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