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Geological characteristics and exploration suggestions for shale in Paleogene Hetaoyuan Formation of Biyang and Nanyang sags, Nanxiang Basin
WANG Yong, LI Yanran, ZHU Yan, ZHANG Yuheng, NIU Mingwei, XIONG Jian, LI Hengquan, WANG Qi
2025, 47(4): 705-719. DOI: 10.11781/sysydz2025040705
Abstract
Enrichment mechanism and evaluation indicators of normal pressure shale gas in the complex structural area of southeastern Chongqing
FANG Dazhi
2025, 47(4): 720-730. DOI: 10.11781/sysydz2025040720
Abstract
Lithofacies paleogeography of Middle Triassic Leikoupo Formation in the southern Sichuan Basin and its implications for conventional and unconventional dual-domain exploration
SONG Xiaobo, CHEN Anqing, SU Chengpeng, LIU Yong, SUN Na, WANG Zeyu, LI Wen, WANG Xianfeng, HUANG Guanghui, SUN Shi
2025, 47(4): 731-741. DOI: 10.11781/sysydz2025040731
Abstract
Quantitative evaluation of brittleness of deep shale gas reservoirs of Wufeng- Longmaxi formations in Lintanchang area, southeastern Sichuan Basin
FENG Shaoke, XIONG Liang, YIN Shuai, DONG Xiaoxia, WEI Limin
2025, 47(4): 742-753. DOI: 10.11781/sysydz2025040742
Abstract
Differential diagenetic evolution of Sinian Dengying Formation reservoirs in Anyue gas field, Central Sichuan Uplift, Sichuan Basin
YANG Chengyu, YU Bo, ZHANG Jianfeng, WANG Tieguan, LI Meijun, NI Zhiyong
2025, 47(4): 754-766. DOI: 10.11781/sysydz2025040754
Abstract
Petrofacies types and evolution characteristics of tight sandstone gas reservoirs of Jurassic Shaximiao Formation, Tianfu gas area, central Sichuan Basin
GUAN Xu, PANG Xiaoting, RAN Qi, YANG Changcheng, WANG Xiaojuan, ZHU Deyu, PAN Ke, LI Fei, XIAO Boyi, CAO Binfeng
2025, 47(4): 767-780. DOI: 10.11781/sysydz2025040767
Abstract
Helium accumulation characteristics and main controlling factors of helium depletion in Daniudi Gas Field, Ordos Basin
WANG Jie, AN Chuan, MA Liangbang, JIANG Haijian, ZHANG Wei, TAO Cheng, WANG Fubin, DONG Qingwei
2025, 47(4): 781-790. DOI: 10.11781/sysydz2025040781
Abstract
Characteristics and controlling factors of shale oil reservoirs in the seventh member of Triassic Yanchang Formation, western Mahuangshan area, Ordos Basin
QI Rong, ZHU Feng, HE Faqi, JIANG Longyan, YIN Chao, SHAO Longkan
2025, 47(4): 791-804. DOI: 10.11781/sysydz2025040791
Abstract
Characteristics and genesis analysis of dolomite in Lower Ordovician Penglaiba Formation in Tahe area
XU Qinqi, PENG Jun, HE Chengqi, XIA Jingang, LIU Rui, HUANG Wei
2025, 47(4): 805-819. DOI: 10.11781/sysydz2025040805
Abstract
Crude oil type classification and source rock identification in Miaoxi area of Bohai Sea area based on stoichiometric method
TANG Youjun, FU Tianyi, YANG Haifeng, WANG Feilong, TANG Guomin, SUN Peng
2025, 47(4): 820-834. DOI: 10.11781/sysydz2025040820
Abstract
Organic matter characteristics of Eocene source rocks with different lithologies in Baiyun Sag of Pearl River Mouth Basin and their geological significance
CHEN Yue, ZHU Xiaojun, ZHANG Lili, XIANG Xuhong, ZENG Xiang, ZHU Weilin
2025, 47(4): 835-846. DOI: 10.11781/sysydz2025040835
Abstract
Geochemical effects of intra-layer hydrocarbon micro-migration in shale layers: a case study of the No. 5 shale layer of the No. Ⅲ sand group in the upper submember of the third member of the Paleogene Hetaoyuan Formation in the deep sag area of Biyang Sag, Nanxiang Basin
ZHANG Dongmei, LI Shuifu, ZHANG Yanyan, SU Peng, ZHOU Changran
2025, 47(4): 847-856. DOI: 10.11781/sysydz2025040847
Abstract
Geochemical and hydrocarbon generation evolution characteristics of marine-continental transitional facies shale: a case study of the Lower Permian Shanxi Formation in the Daning-Jixian area, eastern margin of Ordos Basin
ZHANG Yangyang, LI Yong, ZHANG Xueying, LUO Liyuan, HE Qingbo, LI Shuxin, LIU Xiangjun, LI Xiang, LI Xingtao, YANG Qiang, CHEN Shijia, LU Jungang, ZHANG Nan, LIU Zhe, YU Ruiyang, MA Haichuan
2025, 47(4): 857-871. DOI: 10.11781/sysydz2025040857
Abstract
"NMR+" shale oil experimental technology system and application
SHI Yujiang, ZHANG Zhehao, ZHAO Jianbin, LUO Yanying, WAN Jinbin, HE Guofen, ZHANG Chenjun, HU Zuzhi
2025, 47(4): 872-881. DOI: 10.11781/sysydz2025040872
Abstract
Computed tomography and image processing based multi-scale fracture extraction method for core samples
WU Feng, CHEN Xuewu, ZHAO Hui, SHI Xiangchao, LIU Jianfeng
2025, 47(4): 882-894. DOI: 10.11781/sysydz2025040882
Abstract
Influence of non-thermal maturity factors on laser Raman spectroscopy of highly to overmature shale: a case study of Lower Paleozoic marine shale in southern Sichuan Basin
ZHANG Hongfei, JIAO Kun, WANG Jiayu, XU Ning, MA Lijun, LIU Lanfeng, WU Yunjun, DENG Bin, WU Juan, YE Yuehao, GUAN Quanzhong, WANGZHOU Xiangxin, ZHANG Congke
2025, 47(4): 895-903. DOI: 10.11781/sysydz2025040895
Abstract
Super-resolution reconstruction technology for full-diameter core nuclear magnetic resonance scanning data: a global non-negative least squares-based approach
MA Yingying, PENG Zebo, CHEN Jingzhi, WU Fei, NIE Xin, LIAO Zhongshu, ZHANG Gong
2025, 47(4): 904-912. DOI: 10.11781/sysydz2025040904
Abstract
Gas injection capacity of low permeability reservoirs considering microscopic characteristics
MA Yongxin, ZHANG Qiaoliang, ZHU Jinqi, MA Shuai, WANG Xin, ZHU Runhua
2025, 47(4): 913-920. DOI: 10.11781/sysydz2025040913
Abstract
Utilization strategies for deep coal-measure reservoirs with different stacking patterns in Linxing block, Ordos Basin
SUN Lichun, LIU Jia, LI Xinze, SUN Le, FANG Maojun, LI Na, FAN Weipeng
2025, 47(4): 921-929. DOI: 10.11781/sysydz2025040921
Abstract
Influencing mechanisms of solid-phase asphaltene precipitation in crude oil of Yongjin Oil Field, Junggar Basin
YANG Yang, ZHANG Dongxiao, WANG Hao, LUN Zengmin, GAO Zhiwei, WANG Rui, HU Wei
2025, 47(4): 930-940. DOI: 10.11781/sysydz2025040930
Abstract