Results 31 to 40 of about 952 (171)

Logging identification and prediction of lithofacies of lacustrine shale system in Shichang Sub-Sag, Nanpu Depression

地质科技通报, 2021
The study of the lithofacies of shale formation is the basic work for shale oil exploration.Due to the limited distribution of the continental lacustrine basin and the fast variations of lithofacies, it is difficult to accurately identify and predict the
Bang Zeng, Xiaoping Liu, Guoyong Liu, Shaochun Wang, Guoyong Li   +4 more
doaj   +1 more source

Sedimentary Evolution Characteristics of Fine-Grained Lithofacies under the High-Resolution Isochronous Shelf System: Insights from the Wufeng-Longmaxi Shales in the Sichuan Basin

Lithosphere, 2021
The deposition and evolution of fine-grained sediments is a hot topic in fine-grained sedimentary rock studies and is important for accurately evaluating shale gas sweet spots.
Guanping Wang, Zhijun Jin, Zongquan Hu, Guangxiang Liu, Tong Zhu, Wei Du, Hongliang Wang, Jing Wu   +7 more
doaj   +1 more source

Petrological characteristics and shale oil enrichment of lacustrine fine-grained sedimentary system: A case study of organic-rich shale in first member of Cretaceous Qingshankou Formation in Gulong Sag, Songliao Basin, NE China

Petroleum Exploration and Development, 2018
Taking organic-rich shale in the first member of Cretaceous Qingshankou Formation in the Gulong Sag, northern Songliao Basin as an example, this study examined the lithofacies classification, petrological characteristics, pore size distribution and their
Bo LIU, Jiaxin SHI, Xiaofei FU, Yanfang LYU, Xianda SUN, Lei GONG, Yunfeng BAI   +6 more
doaj   +1 more source

Pore structure and fractal characteristics of transitional shales with different lithofacies from the eastern margin of the Ordos Basin

Energy Science & Engineering, 2023
To better characterize the heterogeneity of transitional shale pore structure and understand its impact on shale gas enrichment, fine characterization of the pore structure of different shale lithofacies was performed by field‐emission scanning electron ...
Tao Wang, Ze Deng, Haiyan Hu, Fenghua Tian, Rong Ding, Tao Zhang, Zhanrong Ma, Songyi Hou, Xiaogang Li, Ruirui Dai, Xing Hong   +10 more
doaj   +1 more source

Paleo-sedimentary environment and lithofacies of Jurassic Da’anzhai Member in the Central Sichuan Basin-A case study of Well Ren’an 1

Frontiers in Earth Science, 2023
The Jurassic Da’anzhai Member in Sichuan Basin is an important target for shale oil exploration. Whole rock X-ray diffraction analysis, thin section, SEM and TOC testing, as well as major and trace element analysis are used to analyze the relationship of
Rui Zhang, Rui Zhang, Benjian Zhang, Minglei Wang, Haihua Zhu, Haihua Zhu, Shaomin Zhang, Wenqiang Tang, Hongfei Zhou, Yucong Li, Rong Bai, Min Jia, Yiqing Zhu, Luyuan Han   +13 more
doaj   +1 more source

Experimental Study on the Impact of CO2 Treatment on Different Lithofacies in Shale Oil Reservoirs [PDF]

Applied Sciences, 2022
CO2 technology has been progressively used in the development of shale oil. After injection, CO2 can react with formation water to form carbonic acid, which then reacts with carbonate and silicate minerals, resulting in changes in porosity and permeability. However, there are some debates as to whether the effect of CO2 improves or damages porosity and
Jiaping Tao, Siwei Meng, Dongxu Li, Gang Cao, Yang Gao, He Liu   +5 more
openaire   +2 more sources

TOC interpretation of lithofacies-based categorical regression model: A case study of the Yanchang formation shale in the Ordos basin, NW China

Frontiers in Earth Science, 2023
In this paper, taking the shale of Chang 7-Chang 9 oil formation in Yanchang Formation in the southeastern Ordos Basin as an example, through the study of shale heterogeneity characteristics, starting from the preprocessing of supervision data set, a ...
Jintao Yin, Jintao Yin, Chao Gao, Chao Gao, Ming Cheng, Quansheng Liang, Quansheng Liang, Pei Xue, Pei Xue, Shiyan Hao, Shiyan Hao, Qianping Zhao, Qianping Zhao   +12 more
doaj   +1 more source

Ultrasonic velocity anisotropy of Jurassic shales with different lithofacies

Journal of Geophysics and Engineering
AbstractGiven the growing importance of organic-rich shale as unconventional reservoirs, a thorough understanding of the elastic and anisotropic behavior of shales is of great concern. However, for lacustrine shales, the complex lithofacies assemblage with geological deposition makes it challenging. Four lithofacies (argillaceous, mixed, siliceous, and
Weihua Liu, Yang Wang, Hui Shen, Min Li, Wenhao Fan   +4 more
openaire   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

Sedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault, Cathy Hollis, Alain Tonetto, Pierre Deschamps, Philippe Léonide, François Fournier   +5 more
wiley   +1 more source