Results 21 to 30 of about 952 (171)

Characteristics of Lithofacies in Deep Shale Gas Reservoirs in the Southeast Sichuan Basin and Their Influence on Pore Structure

Frontiers in Earth Science, 2022
The characteristics of lithofacies in the shale reservoir of the Wufeng and Longmaxi formations located in the Luzhou gas field were studied using the three-end-member method (mineralogical components).
Jiang He, Songyue Zhu, Xuewen Shi, Shengxian Zhao, Lieyan Cao, Shulin Pan, Feng Wu, Meng Wang, Meng Wang   +8 more
doaj   +1 more source

Reservoir and lithofacies shale classification based on NMR logging

Petroleum Research, 2020
Shale gas reservoirs have fine-grained textures and high organic contents, leading to complex pore structures. Therefore, accurate well-log derived pore size distributions are difficult to acquire for this unconventional reservoir type, despite their importance. However, nuclear magnetic resonance (NMR) logging can in principle provide such information
Yu, H., Wang, Z., Wen, F., Rezaee, Reza, Lebedev, Maxim, Li, X., Zhang, Y., Iglauer, Stefan   +7 more
openaire   +4 more sources

The Role of Soluble Organic Matter in Shale Oil “Sweet Spots” Prediction: An Investigation of Shale With Different Lithofacies in the Dongying Sag

Frontiers in Earth Science, 2021
Lithofacies are the fundamental geological units for shale oil and gas exploration and development, and soluble organic matter (SOM) is most similar to crude oil in composition. Both aspects attract our attention in the interpretation of SOM in different
Jinyi He, Jingong Cai, Xiaojun Zhu, Mingshui Song, Huimin Liu, Xuejun Wang, Xiang Zeng   +6 more
doaj   +1 more source

Sedimentary Genesis and Model Analysis of Shale Lithofacies in Jiyang Depression

Processes, 2023
Based on core observation, rock thin sections, logging data, and testing data, taking the shale of the upper submember of the 4th Member to the lower submember of the 3rd Member of Paleogene Shahejie Formation in Jiyang Depression of Bohai Bay Basin as an example, we determine the lithofacies division scheme, divide the main lithofacies types, analyze ...
Ma, Cunfei, Liu, Shuangpeng, Zhao, Qi, Fan, Yongjun, Qian, Yaoyao, Liu, Xiantai, Ge, Xinmin   +6 more
openaire   +1 more source

Classification of shale lithofacies from Ordovician Wufeng Formation to first section of first member of Silurian Longmaxi Formation, western Changning area, Sichuan Basin, and its significance

Shiyou shiyan dizhi, 2022
Shale gas exploration has been successfully carried out in the Upper Ordovician Wufeng Formation to the Lower Silurian Longmaxi Formation of the Changning area of Sichuan Basin. To clarify the lithofacies differences, vertical and horizontal distribution
Chongjie LIAO, Lei CHEN, Jian ZHENG, Yana CHEN, Zhimin JIN, Minglong LI, Xin CHEN, Xiucheng TAN   +7 more
doaj   +1 more source

Machine Learning Algorithms for Lithofacies Classification of the Gulong Shale from the Songliao Basin, China

Energies, 2023
Lithofacies identification and classification are critical for characterizing the hydrocarbon potential of unconventional resources. Although extensive applications of machine learning models in predicting lithofacies have been applied to conventional ...
Mingqiu Hou, Yuxiang Xiao, Zhengdong Lei, Zhi Yang, Yihuai Lou, Yuming Liu   +5 more
doaj   +1 more source

Forecast of lacustrine shale lithofacies types in continental rift basins based on machine learning: A case study from Dongying Sag, Jiyang Depression, Bohai Bay Basin, China

Frontiers in Earth Science, 2023
Lacustrine shale in continental rift basins is complex and features a variety of mineralogical compositions and microstructures. The lithofacies type of shale, mainly determined by mineralogical composition and microstructure, is the most critical factor
Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Liqiang Zhang, Shicui Yan   +6 more
doaj   +1 more source

Development and controlling factors of shale lithofacies cycles in a continental rift basin: A case study of Es4u in the Boxing Subsag of Dongying Sag, Bohai Bay Basin, China

Frontiers in Earth Science, 2023
The shale of the upper Es4 formation (Es4u), deposited during the Eocene in the Boxing Subsag of the Dongying Sag, is a typical set of lime-rich lacustrine shale in a continental rift basin.
Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Zhengwei Fang, Liqiang Zhang, Cunfei Ma   +6 more
doaj   +1 more source

Lithofacies distribution characteristics and its controlling factors of shale in Wufeng Formation-Member 1 of Longmaxi Formation in the Jiaoshiba area

Petroleum Research, 2018
It is essential to investigate shale lithofacies distribution and controlling factor of the shale for geological evaluation of shale gas exploration and development. Through comprehensive analysis of cores, thin sections, cathode luminescence, whole-rock
Chao Wang, Baiqiao Zhang, Yongchao Lu, Zhiguo Shu, Yaqiu Lu, Hanyong Bao, Zhiyong Meng, Lei Chen   +7 more
doaj   +1 more source

A new method of shale oil facies element logging evaluation and its application in Dongying Sag [PDF]

Youqicang pingjia yu kaifa
The lithofacies of shale oil within the Dongying Sag of the Jiyang Depression are distinguished by their complex lithology, strong heterogeneity, and marked regional distribution variances.
GUAN Qianqian, JIANG Long, CHENG Ziyan, ZHANG Diandong, WANG Yunhe, ZHANG Fan   +5 more
doaj   +2 more sources