PETROLEUM EXPLORATION

• Major basic scientific issues and research directions for exploration and development of deep coal-rock gas in China
• Li Guoxin, Zhang Bin, Zhang Junfeng, Zhao Qun
• 2025, 46 (6): 1025-1036. DOI: 10.7623/syxb202506001
• Abstract ( 148 ) PDF (8412KB) ( 253 )

• Discovery and key exploration technology of Q inhuangdao27-3 large shallow lithologic oilfield in Bohai Sea
• Xu Changgui, Wang Xin, Xu Chunqiang, Huang Zhi
• 2025, 46 (6): 1037-1055. DOI: 10.7623/syxb202506002
• Abstract ( 66 ) PDF (24591KB) ( 100 )

• Key technologies and innovative practices for exploration and development of thin interbedded coalbed methane in the shallow transformation zone of Junlian complex mountainous region,southern Sichuan Basin
• Shan Chang'an, Liang Xing, Zhang Zhuo, Luo Yufeng, Peng Lisha, Yuan Xiaojun, Fei Yue, Fan Xiaodong, Yu Baoshi, Zhang Yongqiang, Dang Wei
• 2025, 46 (6): 1056-1073,1125. DOI: 10.7623/syxb202506003
• Abstract ( 57 ) PDF (10089KB) ( 68 )

• Exploration and development practice, new geological understanding and resource potential of low to ultra-low permeability gas reservoirs in Xihu sag of East China Sea Basin
• Zhang Yingzhao, Jiang Yiming, Diao Hui, Li Ning, Duan Dongping, Li Shuai, Chang Yinshan
• 2025, 46 (6): 1074-1088. DOI: 10.7623/syxb202506004
• Abstract ( 52 ) PDF (18461KB) ( 48 )

• Influence of deep hydrothermal fluid on organic matter enrichment and its activity mode in Shahejie Formation and Dongying Formation of Bohai Bay Basin
• Yang Haifeng, Fang Zhou, Wang Feilong, Jiang Fujie, Qi Zhenguo, Liu Mengxing, Zheng Xiaowei, Chen Di, Hu Tao
• 2025, 46 (6): 1089-1107. DOI: 10.7623/syxb202506005
• Abstract ( 54 ) PDF (12398KB) ( 49 )

• Characteristics and accumulation model of the Whole Petroleum System in Baoding-Raoyang sags,Jizhong depression,Bohai Bay Basin
• Li Xiwei, Yang Bo, Jiang Fujie, Chen Ketong, Li Yongxi, Shi Yuanpeng, Li Xiaoyan, Zhang Jichao, Ma Xuefeng, Li Ben, Zhang Ruixue, Xu Mengting, Zang Liyuan, Zhao Yi
• 2025, 46 (6): 1108-1125. DOI: 10.7623/syxb202506006
• Abstract ( 101 ) PDF (13822KB) ( 105 )

• Multi-scale migration mechanism,accumulation effect and enrichment mode of tight oil reservoir in the Member 7 of Yanchang Formation in Jiyuan area,Ordos Basin
• Wang Fuwei, Chen Dongxia, Jiang Mengya, Wanma Renzeng, Liu Chen, Wang Qiaochu, Wang Yuchao, Rong Lanxi, Wang Yuqi, Cheng Ming
• 2025, 46 (6): 1126-1143. DOI: 10.7623/syxb202506007
• Abstract ( 60 ) PDF (15416KB) ( 66 )

• Reconstruction of near-offset seismic data based on non-local self-similarity
• Yang Zihan, Huang Juan, Fan Fan, Li Tao, Fu Lihua
• 2025, 46 (6): 1144-1156. DOI: 10.7623/syxb202506008
• Abstract ( 42 ) PDF (14855KB) ( 14 )

OIL FIELD DEVELOPMENT

• Calculation of drained rock volume in shale oil reservoirs under the synergistic effect of imbibition and drainage displacement
• Wang Fei, Qiao Runwei, Li Jianmin, Chen Yiwei, Ran Yang, Xu Tianlu, Zhang Shicheng, Wei Ziyang
• 2025, 46 (6): 1157-1167. DOI: 10.7623/syxb202506009
• Abstract ( 61 ) PDF (7824KB) ( 61 )

• Mechanism of high-pressure fracturing fluid invasion and coupled fluid-solid simulation in shale gas reservoirs
• Xu Yingying, Hu Zhiming, Shi Yuxin, Duan Xianggang, Chang Jin, Xie Weiyang
• 2025, 46 (6): 1168-1179,1192. DOI: 10.7623/syxb202506010
• Abstract ( 70 ) PDF (7883KB) ( 58 )

• Practice and prospect of development and comprehensive utilization of buried hill reservoirs in Jizhong depression
• Zhou Xian, Meng Qingchun, Chen Hong, Zeng Qingqiao, Zeng Junqi, Wang Ruisi, Wang Li, Du Lihong, Zhang Xi, Yan Xue
• 2025, 46 (6): 1180-1192. DOI: 10.7623/syxb202506011
• Abstract ( 38 ) PDF (7255KB) ( 29 )

PETROLEUM ENGINEERING

• Current status and progress of research on intelligent drill bits
• Liu Qingyou, Yan Liangzhu
• 2025, 46 (6): 1193-1202. DOI: 10.7623/syxb202506012
• Abstract ( 175 ) PDF (14896KB) ( 219 )

• Fragmentation modes and patterns of granite subjected to heavy-load impact under confining pressure
• Zhu Xiaohua, Cheng Feilong, Shi Changshuai, Liu Weiji
• 2025, 46 (6): 1203-1216. DOI: 10.7623/syxb202506013
• Abstract ( 67 ) PDF (22451KB) ( 57 )