• Transformation of understanding from tight oil to shale oil in the Member 7 of Yanchang Formation in Ordos Basin and its significance of exploration and development
• Fu Suotang, Jin Zhijun, Fu Jinhua, Li Shixiang, Yang Weiwei
• 2021, 42 (5): 561-569. DOI: 10.7623/syxb202105001
• Abstract ( ) PDF (3813KB) ( )

• Gravity flow deposits in the distal lacustrine basin of the 7th reservoir group of Yanchang Formation and deepwater oil and gas exploration in Ordos Basin: a case study of Chang 7₃ sublayer of Chengye horizontal well region
• Zhang Jiaqiang, Li Shixiang, Li Hongwei, Zhou Xinping, Liu Jiangyan, Guo Ruiliang, Chen Junlin, Li Shutong
• 2021, 42 (5): 570-587. DOI: 10.7623/syxb202105002
• Abstract ( ) PDF (26001KB) ( )

• Characteristics and evolution of fault rocks in carbonate fault zone: a case study of the Lower Paleozoic in Chezhen sag of Jiyang depression, Bohai Bay Basin
• Liu Peng, Wang Yongshi, Song Mingshui, Liu Yali, Wang Min, Zhang Shun, Wang Tongda
• 2021, 42 (5): 588-597. DOI: 10.7623/syxb202105003
• Abstract ( ) PDF (26051KB) ( )

• Main controlling factors and patterns of gas hydrate accumulation in the deep water area of Qiongdongnan Basin
• Xu Litao, He Yulin, Shi Wanzhong, Liang Jinqiang, Wang Ren, Du Hao, Zhang Wei, Li Guanhua
• 2021, 42 (5): 598-610. DOI: 10.7623/syxb202105004
• Abstract ( ) PDF (25509KB) ( )

• Fluid source and formation time of fracture veins of Wufeng Formation and Longmaxi Formation in the south of Jiaoshiba area, Sichuan Basin
• Luo Tao, Guo Xiaowen, Shu Zhiguo, Bao Hanyong, He Sheng, Qing Zejian, Xiao Zhihui
• 2021, 42 (5): 611-622. DOI: 10.7623/syxb202105005
• Abstract ( ) PDF (19103KB) ( )

• Comparison of separation of asphaltene adsorbed hydrocarbons by different elution methods
• Fang Peng, Wu Jia, Li Botian, Wang Xuance, Zhong Ningning
• 2021, 42 (5): 623-633,653. DOI: 10.7623/syxb202105006
• Abstract ( ) PDF (5642KB) ( )

• A geophysical characterization method of flow field of oil reservoirs
• Zhao Pingqi, Ma Yuehua, Feng Xukui, Li Hongge, He Shumei, Han Sicheng
• 2021, 42 (5): 634-640. DOI: 10.7623/syxb202105007
• Abstract ( ) PDF (6199KB) ( )

• Influence of rough pore wall on tight sandstone gas flow at micro/nano scale
• Zhao Yulong, Liu Xiangyu, Zhang Liehui, Wu Tingting, Shan Baochao
• 2021, 42 (5): 641-653. DOI: 10.7623/syxb202105008
• Abstract ( ) PDF (6890KB) ( )

• Influence of pore throat structure on changes in physical properties of reservoir rock during CO₂ flooding
• Wang Qian, Yang Shenglai, Bai Jie, Zhao Wei, Li Jiajun, Chen Hao
• 2021, 42 (5): 654-668,685. DOI: 10.7623/syxb202105009
• Abstract ( ) PDF (7145KB) ( )

• Mechanical properties of the sealing surface of worn casing threaded connection
• Di Qinfeng, Wang Nan, Chen Feng, Chen Tao, Wang Wenchang, Chen Wei
• 2021, 42 (5): 669-676. DOI: 10.7623/syxb202105010
• Abstract ( ) PDF (10092KB) ( )

• A dynamic model and mechanical properties of the fishing system for high-inclination wells
• Song Xianmin, Yang Hui, Liu Jun, Huang Xiang, Fu Jun, Guo Xiaoqiang, Li Guoyong, Duan Jian
• 2021, 42 (5): 677-685. DOI: 10.7623/syxb202105011
• Abstract ( ) PDF (3690KB) ( )

• Self-adaptive repair behavior and mechanism of micro-defects of differential pressure activated sealant
• Xu Lin, Liu Shujie, Xu Mingbiao, Feng Huanzhi, Xing Xijin, Deng Jiajia
• 2021, 42 (5): 686-694. DOI: 10.7623/syxb202105012
• Abstract ( ) PDF (7215KB) ( )