Article
Geosciences, Multidisciplinary
Changan Shan, Congchen Ye, Zhao Zhang, Chen Zou, Fangyu He, Hanbing Zhang, Jue Mei, Kaigui Yin, Yakun Shi, Boshuo Li, Fengqi Zhang, Yifan Diao
Summary: This article analyzes the geological characteristics, sedimentary environment, and reservoir characteristics of transitional shale gas in the southern Sichuan basin. The results show that the region has favorable conditions for shale gas accumulation, making it a potential key area for future exploration and development.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Marine
Pibo Su, Lin Lin, Yaoyao Lv, Jinqiang Liang, Yunbao Sun, Wei Zhang, Huice He, Baiquan Yan, Zhanhuai Ji, Lifeng Wang, Feifei Wang, Mengya Cai
Summary: The study analyzed and evaluated global marine gas hydrate resources, revealing the great potential of gas hydrate resources in the South China Sea, which can provide guidance for global climate change assessment and resource exploration and development.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Shengxiu Wang, Jia Wang, Yuelei Zhang, Dahua Li, Weiwei Jiao, Jinxi Wang, Zhian Lei, Zhongqiang Yu, Xiaojun Zha, Xianfeng Tan
Summary: Through organic geochemical and reservoir characteristic analysis, the features of the Wufeng-Longmaxi formation shale and reservoir characteristics were identified. The study revealed a positive correlation between TOC and quartz content, and a positive correlation between porosity and clay mineral content. Therefore, shale with high TOC content, high clay mineral content, and suitable quartz content is the most favorable interval for shale gas exploration and development.
Article
Energy & Fuels
Xiaoyan Zou, Xianqing Li, Jizhen Zhang, Huantong Li, Man Guo, Pei Zhao
Summary: The study found that the porosity and development of organic matter pores in Lower Silurian shale are better than that of Lower Cambrian, with main pore types including interparticle pore, intraparticle pore, organic matter pore, and micro-fracture. Micropores in Lower Cambrian shale provide the major pore volume and specific surface areas.
Article
Geosciences, Multidisciplinary
Qi Fan, Qingping Li, Shouwei Zhou, Lixia Li, Zhenyu Zhu, Xin Lv
Summary: By conducting comprehensive geological evaluation and analyzing geochemical data, this study revealed the characteristics of hydrocarbon sources, reservoirs, and the accumulation process of gas hydrates in the Qiongdongnan Basin of the South China Sea. The results emphasize the importance of thermogenic gas in hydrate accumulation, providing important references for the trial production of natural gas hydrates in the South China Sea.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Dongdong Wang, Fulong Ning, Jingan Lu, Hongfeng Lu, Dongju Kang, Yingfeng Xie, Jing Li, Jiaxin Sun, Wenjia Ou, Zhichao Liu, Bin Fang, Li Peng, Zhun Zhang, Wei Li
Summary: The study systematically characterized the geological controls on gas hydrate accumulation in the Shenhu area, providing a quantitative evaluation of critical factors influencing hydrate enrichment. Microfractures and foraminiferal shells were found to play a crucial role in the occurrence and accumulation of gas hydrates in the area. The study also indicated differences in gas sources under specific environmental conditions.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Yufang Wang, Gangyi Zhai, Guoheng Liu, Wanzhong Shi, Yongchao Lu, Juan Li, Yunxiao Zhang
Summary: This passage discusses the well-developed marine shale strata in the Middle and Upper Yangtze region of South China, with Wufeng Longmaxi shale gas being the only one developed on a large scale currently. The Sinian and Cambrian shale gases are still in the exploration stage. The different shale strata show varying characteristics in lithological features, influenced by tectonic patterns, sedimentary environments, and diagenesis caused by tectonic subsidence. This will have an impact on fracturing technology and effectiveness in the future.
JOURNAL OF EARTH SCIENCE
(2021)
Article
Energy & Fuels
Yue Feng, Xianming Xiao, Enze Wang, Ping Gao, Chengang Lu, Gang Li, Zihan Wang, Qin Zhou
Summary: This study investigates the geochemical and pore characteristics of deep Longmaxi shale samples from the Luzhou area of southern Sichuan, China. The origins and quantities of different types of quartz in the shale are identified and discussed in relation to their effects on organic matter accumulation and physical properties of the shale. Three types of quartz, including terrigenous quartz, clay-mineral-transformed quartz, and biogenic quartz, are found in the shale. Each type of quartz has different effects on organic matter accumulation and physical properties, with biogenic quartz having a positive relationship with total organic carbon, porosity, and brittleness. The abundance of biogenic quartz in the shale indicates the presence of enriched organic matter and excellent physical properties, which is significant for the exploration and development of deep and ultra-deep shale gas.
Article
Energy & Fuels
Fengjiao Li, Zhengliang Huang, Xiaofeng Wang, Xiaofeng Liu, Wenhui Liu, Zhenghong Cai, Houyong Luo, Qingtao Wang, Dongdong Zhang
Summary: Graptolite-rich shale is the main layer of shale gas resources in the southern marine sedimentary basin. Recently, shale gas resources were discovered in the Ordovician marine graptolite-rich strata in the Ordos Basin. The study found that graptolite shale has advantages in preserving organic matter, with different types of pores forming spaces for hydrocarbons.
Article
Energy & Fuels
Yuying Zhang, Shu Jiang, Zhiliang He, Yuchao Li, Dianshi Xiao, Guohui Chen, Jianhua Zhao
Summary: This study analyzed the heterogeneous characteristics of source rock and reservoir in the Wufeng-Longmaxi Formation in the Sichuan Basin to understand the factors controlling shale gas accumulation. The study highlighted the importance of coupling between source rock and reservoir in shale gas generation and storage. The research also identified the potential for shale gas exploration in the region, providing valuable insights for future studies in shale gas reservoirs.
Article
Energy & Fuels
Xinhua Ma, Hongyan Wang, Shangwen Zhou, Zhensheng Shi, Leifu Zhang
Summary: The deep shale gas reservoir in southern Sichuan Basin has significant exploration and development potential, with specific geological characteristics, but faces various challenges that require enhanced research and technological innovation.
Article
Energy & Fuels
Liangbin Dou, Jingyang Chen, Nan Li, Jing Bai, Yong Fang, Rui Wang, Kai Zhao
Summary: This study analyzes and evaluates the decrease in permeability and damage caused by foaming agent solutions in shale reservoirs. It provides technical guidance for damage evaluation and reservoir protection in shale reservoir exploitation.
Article
Chemistry, Multidisciplinary
Ke Duan, Tong Xie, Yi Wang, Yanlin Zhang, Wanzhong Shi, Yongchao Lu
Summary: The siliceous shale in the Dalong Formation of Western Hubei, China, is characterized by high organic matter content, abundant organic pores, and excellent methane adsorption capacity. The development of organic pores is positively correlated with TOC and clay mineral contents, while negatively correlated with quartz and carbonate contents. The development of siliceous minerals helps preserve organic pores, facilitating the adsorption and storage of shale gas.
APPLIED SCIENCES-BASEL
(2023)
Article
Geosciences, Multidisciplinary
Xuejiao Yuan, Kun Zhang, Jun Peng, Bin Li, Fengli Han, Xuecheng Chen, Zehao Zheng, Jingru Ruan, Laiting Ye, Zeyun Wang, Zhen Huang, Kun Chen, Meijia Wu, Jiale Niu, Zhendong Yang
Summary: This study analyzed the pore characteristics of medium-high maturity continental shale oil and gas by studying organic-rich shale samples. The analysis revealed the presence of various types of pores, including solid bitumen pores, solid bitumen-clay mineral complex pores, and clay mineral pores, which are the main reservoir spaces in these shale formations.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Xuewen Shi, Shujuan Kang, Chao Luo, Wei Wu, Shengxian Zhao, Di Zhu, Huanxu Zhang, Yang Yang, Zhenglu Xiao, Yong Li
Summary: This paper presents a study on the Longmaxi Formation in the Sichuan Basin, which is a significant shale gas producing formation in China. The research provides carbon isotopic data that suggest better shale gas exploration potential at the bottom of the Longmaxi Formation. The study also compares the exploration prospects in different areas and recommends further drilling based on the presence of oil cracking gas resources and better reservoir conditions.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)