Results 61 to 70 of about 627 (208)

A novel method for automatic quantification of different pore types in shale based on SEM-EDS calibration [PDF]

Pore type is a crucial consideration in the quantification of shale pores. Convolutional Neural Networks (CNNs) are widely used for identifying pore types in shale, but it is hampered by feature extraction bias, difficult data labeling, and poor ...
Chen, Guohui, Dong, Zhentao, Erastova, Valentina, Liu, Bo, Lu, Shuangfang, Tian, Shansi, Xue, Haitao, Zhang, Yuying   +7 more
core   +1 more source

A 500‐kyr Pluvial Interval Triggered Lacustrine Carbon Burial in Late Cretaceous East Asia

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The early Late Cretaceous hothouse was featured by intense storms and a prevailing monsoon climate, yet direct evidence for regional extreme precipitation events is rare. Here, we reconstruct local weathering and hydrological processes using magnesium and strontium isotopes (δ26Mg and 87Sr/86Sr) from lacustrine dolostones in the Upper ...
Yuke Liu, Xiaomei Wang, Minghao Wu, Jin Su, Chengshuai Yuan, Xuening Qi, Shuichang Zhang   +6 more
wiley   +1 more source

Pore evolution modeling in natural lacustrine shale influenced by mineral composition: Implications for shale oil exploration and CO2 storage [PDF]

Describing the organic-inorganic pore evolution influenced by mineral composition is crucial for characterizing shale oil storage capacity and flow in shale, and it also helps predict storage capacity for sequestered CO2.
Bai, Longhui, Gao, Yifei, Huo, Qiuli, Liu, Bo, Wang, Liu, Yu, Zhichao   +5 more
core   +1 more source

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

, 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, Liu, Yang, Pang, Xiongqi, Wu, Guanyun, Xu, Zhi, Yu, Sa   +5 more
core   +1 more source

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

Petroleum 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, Bowei ZHANG, Zihui FENG, Yachun WANG, Juhe ZHANG, Xiaofei FU, Yonghe SUN, Qiuli HUO, Hongmei SHAO, Huasen ZENG, Bin QU, Huanyuan CHI   +11 more
doaj   +1 more source

Authigenic silica in continental lacustrine shale and its hydrocarbon significance

Petroleum Exploration and Development, 2022
Taking lake basin shales of the Triassic Yanchang Formation in the Ordos Basin, NW China and the Cretaceous Qingshankou Formation in the Songliao Basin, NE China as research objects, the characteristics and origins of different types of silica in the ...
Bin BAI, Chaocheng DAI, Xiulin HOU, Xianyang LIU, Rui WANG, Liang YANG, Shixiang LI, Junling HE, Ruojing DONG   +8 more
doaj   +1 more source

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

Geochemistry, 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, Rukai Zhu, Pengcheng Ju, Quanyou Liu, Weiming Xu, Peng Li, Wang Zhang, Xinping Liang   +7 more
wiley   +1 more source

Petrology, Physical Properties, and Diagenetic Characteristics of Glutenite Reservoir: An Example from the Upper Urho Formation in Zhongguai Salient, Junggar Basin, China [PDF]

, 2022
The Upper Urho Formation on the northwest margin of the Junggar Basin is a key formation for oil and gas exploration. Based on the core observation, combined with the analysis of cast thin section, scanning electron microscope, energy dispersive spectrum,
Changming Zhang, Jin Pan, Kang Zhao, Liliang Huang, Qi Shuang, Wenjun He, Youlun Feng   +6 more
core   +1 more source

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

Minerals, 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, Rukai Zhu, Zhong Luo, Songtao Wu, Tianshu Zhang, Chang Liu, Jingya Zhang, Yongchao Wang, Siwei Meng, Huajian Wang, Qian Zhang   +10 more
openaire   +1 more source

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

Energy 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, Guangzhi Liao, Ruiqi Fan, Rui Mao, Xueli Hou, Nan Li, Zhilong He, Yushu Zhang, Lizhi Xiao   +8 more
wiley   +1 more source