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2024 Vol. 46, No. 3

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2024, 46(3): .
Abstract(529) PDF-CN(42)
Abstract:
Main controlling factors of shale oil enrichment in second member of Paleogene Funing Formation in Gaoyou Sag of Subei Basin
DUAN Hongliang, SUN Yaxiong, YANG Baoliang
2024, 46(3): 441-450. doi: 10.11781/sysydz202403441
Abstract(917) HTML (194) PDF-CN(89)
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The second member of the Paleogene Funing Formation in the Gaoyou Sag is a key area for shale oil exploration within the Subei Basin. The successful implementation of eight horizontal shale oil wells evidences its significant potential and promising prospects of exploration. Addressing challenges su...
Application of geothermal gradient in the study of thermal evolution of Paleozoic source rocks, Tarim Basin
DING Yong, PAN Quanyong
2024, 46(3): 451-459. doi: 10.11781/sysydz202403451
Abstract(649) HTML (227) PDF-CN(47)
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Considerable debate has arisen regarding studies of the thermal history of Paleozoic source rocks in the Tarim Basin, particularly regarding the thermal evolution of ultra-deep, ancient source rocks. The evaluation method for the thermal evolution stages has long been a key issue in the study of sou...
Sedimentary evolution and petroleum geological significance of Permian Maokou Formation in eastern and northern Sichuan Basin
CAO Hua, SHAN Shujiao, TIAN Chen, ZHANG Xihua, PENG Hanlin, LIU Peiyun, CHEN Cong, GAO Zhaolong, HU Luojia, XIE Jingping, LI Tianjun, HU Guang
2024, 46(3): 460-471. doi: 10.11781/sysydz202403460
Abstract(587) HTML (598) PDF-CN(76)
Abstract:
In recent years, the Permian Maokou Formation of the Sichuan Basin shifted focus. Previously, targeting high points and exploring along the long axis were common. Now, the strategy emphasizes finding shoal grainstone reservoirs with pores, leading to significant breakthroughs and making the Maokou F...
Characteristics and formation stages of natural fractures in Lower Silurian Longmaxi Formation in Tiangongtang area of Sichuan Basin
LI Linhao, FAN Cunhui, ZHAO Shengxian, LIU Shaojun, XU Fei, NIE Shan, YU Yawei
2024, 46(3): 472-482. doi: 10.11781/sysydz202403472
Abstract(379) HTML (320) PDF-CN(57)
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The Lower Silurian Longmaxi Formation on the southwestern margin of the Sichuan Basin holds significant shale gas reserves. The characteristics and formation stages of fractures play a crucial role in shale gas accumulation and productivity. Focusing on the Longmaxi Formation in the Tiangongtang are...
Characteristics and genesis of fillings in fracture-cavity space in first member of Permian Maokou Formation, Sichuan Basin: a case study of well A1
MENG Xianwu, YOU Donghua, LI Rong, SONG Xiaobo, ZHANG Liyu, ZHU Lan
2024, 46(3): 483-490. doi: 10.11781/sysydz202403483
Abstract(497) HTML (183) PDF-CN(43)
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In recent years, natural gas discoveries have been continuously made in the first member of the Permian Maokou Formation in the Sichuan Basin, bringing attention to the genesis mechanism of marlstone reservoir space. Centimeter-scale fracture-cavity type reservoir space is one of the newly discovere...
Development characteristics and oil-gas geological significance of slope break zone of Xujiahe Formation in Sichuan Basin
CHEN Youzhi, ZANG Dianguang, YANG Xiao, WU Furong, LIANG Hong, WANG Xiaoyang, WU Yulin, GUO Ran, XU Min, CHEN Ying, ZHANG Shuai, WANG Peng, YING Qian, ZHAO Zhenwei, CHEN Na
2024, 46(3): 491-498. doi: 10.11781/sysydz202403491
Abstract(463) HTML (665) PDF-CN(49)
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Previous studies have delved into slope break zones in faulted basins, yet foreland basins, with their gentle slopes toward the forebulge, underdeveloped large-scale structures, and small terrain undulations, have received limited research on slope-fault belts. During the deposition periods of the 4...
Characteristics and main controlling factors of organic pore development in continental shales of the Lianggaoshan Formation in the Fuxing area, Sichuan Basin
WANG Pengwei, SHEN Baojian, LIU Zhongbao, LI Min, LI Qianwen, RONG Jia, WANG Qianru
2024, 46(3): 499-509. doi: 10.11781/sysydz202403499
Abstract(754) HTML (396) PDF-CN(55)
Abstract:
The Lianggaoshan Formation in the Fuxing area of the Sichuan Basin has developed a typical set of medium to high maturity continental shale condensate oil reservoirs. Research on the development characteristics and patterns of organic pores in shale reservoirs at the condensate oil stage is relative...
Characteristics of Longwangmiao reservoirs in Penglai gas area and comparison with those in Moxi-Gaoshiti area, central Sichuan Basin
XING Fengcun, LIU Ziqi, QIAN Hongshan, LI Yong, ZHOU Gang, ZHANG Ya, HUANG Maoxuan, LI Chenglong, LONG Hongyu
2024, 46(3): 510-521. doi: 10.11781/sysydz202403510
Abstract(464) HTML (271) PDF-CN(30)
Abstract:
The Lower Cambrian Longwangmiao Formation in the Penglai gas area has promising carbonate reservoirs and exhibit strong gas indications, making itself a pivotal exploration zone following the Anyue gas field in the central Sichuan region. However, the lack of clarity regarding reservoir development ...
Sedimentary microfacies and environment of Paleogene carbonate-rich shale in Dongying Sag, Bohai Bay Basin
WANG Weiqing, LI Pengbo, LI Bo, FANG Zhengwei, WANG Yuhuan
2024, 46(3): 522-531. doi: 10.11781/sysydz202403522
Abstract(720) HTML (148) PDF-CN(55)
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The identification, classification, and integration of microfacies characteristics of carbonate-rich shale in the Dongying Sag of the Bohai Bay Basin are fundamental for understanding the sedimentary origin and spatial structure of related sediments. Leveraging core and rock thin section data, along...
Critical dynamic conditions for gas migration in tight sandstone
WANG Ruogu, QIAO Xiangyang, ZHOU Jinsong, LEI Yuhong, CAO Jun, YIN Xiao, ZHUGENG Bolun
2024, 46(3): 532-541. doi: 10.11781/sysydz202403532
Abstract(303) HTML (263) PDF-CN(39)
Abstract:
Physical simulation serves as a crucial method for understanding the mechanisms of underground oil and gas migration and accumulation. To gain a deeper understanding of gas migration mechanisms in tight reservoirs under deep geological conditions, experimental models and boundary conditions were des...
Characteristics and formation mechanism of stratified deformation of Lower Paleozoic faults in Gaojiapu area, eastern Ordos Basin
CHEN Ping, LI Mingrui, LI Wei, QIANG Min, LU Pengcheng, YU Xiaowei, HAN Wei
2024, 46(3): 542-552. doi: 10.11781/sysydz202403542
Abstract(393) HTML (372) PDF-CN(50)
Abstract:
In recent years, exploration breakthroughs have been successively achieved in the strata deeper than the fifth member of the Lower Ordovician Majiagou Formation in the Ordos Basin, revealing its tremendous exploration potential. With the deployment of high-precision 3D seismic data and the deepening...
Reservoir limits and grading evaluation criteria of tight glutenite: a case study of Cretaceous Shahezi Formation in Xujiaweizi Fault Depression, Songliao Basin
WANG Junjie, LU Shuangfang, LIN Zizhi, ZHOU Nengwu, ZHANG Pengfei, HUANG Hongsheng, ZHI Qi, LI Baizhi
2024, 46(3): 553-564. doi: 10.11781/sysydz202403553
Abstract(988) HTML (612) PDF-CN(46)
Abstract:
The Lower Cretaceous Shahezi Formation glutenite reservoirs in the Xujiaweizi Fault Depression are important tight gas reservoirs in the deep strata of the Songliao Basin. Their complex porosity and permeability relationships pose challenges to determining reservoir boundaries and evaluating reservo...
Control mechanism of tectonic action on continuous accumulation and coupling of conventional-unconventional oil and gas reservoirs: a case study of Pingqiao area, southeastern Sichuan Basin
GAO Lingyu, CHEN Kongquan, LU Jianlin, TANG Jiguang, TUO Xiusong, ZHANG Douzhong, YAN Chunming, PANG Yizhen
2024, 46(3): 565-575. doi: 10.11781/sysydz202403565
Abstract(410) HTML (189) PDF-CN(51)
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This study explored the dynamic control and differences of tectonic action on the formation of conventional and unconventional gas reservoirs in Pingqiao area, southeastern Sichuan Basin. Based on seismic, geolo-gical, inclusion, and other relevant data, together with fault-related fold theory, this...
Geochemical characteristics and geological significance of noble gases in natural gas from Songliao Basin, China
LI Wei, CHEN Jianfa, WANG Jie, WANG Xiaobo, HE Daxiang, WANG Dongliang, LIU Kaixuan, YOU Bing, CHEN Cong, FU Rao, TANG Shuaiqi, ZHANG Jiaqi
2024, 46(3): 576-589. doi: 10.11781/sysydz202403576
Abstract(320) HTML (236) PDF-CN(61)
Abstract:
Geochemistry of noble gases has been applied to the study of deep Earth materials and celestial meteorites. With advancements in measurement technology, it is also increasingly being used in natural gas research. Using the most advanced noble gas mass spectrometer, a systematic analysis was conducte...
Aromatic hydrocarbon evolution patterns and maturity indication significance of marine shale: a comparative study of naturally evolved and thermally simulated samples from the Second White Specks Formation of Cretaceous Colorado Group, Western Canada Basin
GE Zhushi, ZUO Zhaoxi, XIAO Qilin, ZHENG Lunju, HUANG Haiping
2024, 46(3): 590-600. doi: 10.11781/sysydz202403590
Abstract(922) HTML (249) PDF-CN(42)
Abstract:
A pyrolysis hydrocarbon generation experiment was conducted on low-maturity marine shale from the Second White Specks (2WS) Formation of the Cretaceous Colorado Group in the Western Canada Basin. Using GC-MS, quantitative analysis of aromatics in naturally evolved and thermally simulated samples was...
Geochemical evidence of paleo-depositional environment of Triassic Adula Formation source rocks of eastern Qiangtang Basin
LIU Xu, LIU Zhongrong, ZHUANG Xinbing, FAN Zhiwei, MA Zeliang, PENG Jinning, LI Fengxun, LI Jipeng, LI Xingqiang
2024, 46(3): 601-613. doi: 10.11781/sysydz202403601
Abstract(617) HTML (585) PDF-CN(40)
Abstract:
The mudstone within the Upper Triassic Adula Formation constitutes a crucial hydrocarbon source rock reservoir in the Qiangtang Basin, yet there is considerable debate regarding its paleo-depositional environment. Through systematic studies, including petrology, organic geochemistry, and elemental g...
Solid-liquid organic matter interaction mechanism between kerogen and aromatic compounds
LIN Xiaohui, LIANG Tian, ZOU Yanrong, TAO Cheng, WANG Yuan
2024, 46(3): 614-620. doi: 10.11781/sysydz202403614
Abstract(262) HTML (99) PDF-CN(30)
Abstract:
Under geological conditions, the initial generation of oil and gas in source rocks reaches saturation before being expelled and migrating, with the adsorption of hydrocarbons by kerogen being a key factor influencing oil saturation. The hydrocarbons produced by pyrolysis interact with kerogen macrom...
Chromatography-vacuum low temperature method of methane enrichment and isotopic fractionation in gas samples
LIU Qingmei, LI Jiacheng, JIANG Wenmin, XIONG Yongqiang
2024, 46(3): 621-629. doi: 10.11781/sysydz202403621
Abstract(301) HTML (116) PDF-CN(31)
Abstract:
Methane (CH4) clumped isotope analysis plays a crucial role in the fields of climate change, energy exploration, and planetary research. The purity of CH4 in samples directly affects the precision and accuracy of high-resolution mass spectrometry in clumped isotope analysis. Addressing the challenge...
Safety and accelerated drilling technologies for deep shale gas in Weirong of Sichuan Basin
HE Xinxing, YAN Yancheng, ZHU Liping, WANG Xiyong, ZHU Huashu, WANG Zhiguo
2024, 46(3): 630-637. doi: 10.11781/sysydz202403630
Abstract(234) HTML (132) PDF-CN(36)
Abstract:
The Weirong shale gas in the Sichuan Basin, buried at depths of 3 600-3 850 m, represents a prototypical deep shale gas reservoir. Drilling operations face challenges such as a complex pressure system, developed fault-dissolved bodies in certain areas of the Maokou Formation, poor drillability of fo...
Microscopic characteristics of ultra-low permeability reservoirs in the Shigang Oilfield of the Subei Basin and strategies for enhancing oil recovery
CHEN Hongcai, LI Zhe, JIN Zhongkang, SUN Yongpeng, CHEN Jun, ZHAO Guang
2024, 46(3): 638-646. doi: 10.11781/sysydz202403638
Abstract(332) HTML (124) PDF-CN(44)
Abstract:
The Shigang Oilfield in the Subei Basin is characterized by low-porosity and ultra-low permeability sandstone reservoirs. The natural productivity of the oil wells is low, but hydraulic fracturing followed by water injection can improve oil production capacity. However, during the development of the...
2024, 46(3): 647-647.
Abstract(175) PDF-CN(32)
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