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2023 Vol. 45, No. 1

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2023, 45(1): .
Abstract(201) PDF-CN(49)
Abstract:
Differential mechanism of tight oil enrichment and reservoir controlling model of source and reservoir combinations: a case study of Qingxi Sag, Jiuquan Basin
LUO Qun, HONG Lan, GAO Yang, DENG Yuan, LI Yingyan, WANG Shichen, MA Wenyu, XU Qian
2023, 45(1): 1-10. doi: 10.11781/sysydz202301001
Abstract(1260) HTML (473) PDF-CN(212)
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The quality of source and reservoir rocks as well as their spatial assemblage types are crucial factors that controlling the charging, accumulation, and enrichment of tight oil resource. However, there are still deficiencies in the understanding about these factors, especially regarding differences ...
Formation mechanism of high-quality reservoirs in deep strata of Paleogene, Bonan Subsag, Zhanhua Sag, Bohai Bay Basin
WANG Yongshi, ZHANG Shun
2023, 45(1): 11-19. doi: 10.11781/sysydz202301011
Abstract(608) HTML (164) PDF-CN(183)
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With the continuous improvement of exploration degree, the main object for oil and gas exploration in the Bonan Subsag of Bohai Bay Basin gradually changes from medium and shallow layers to medium and deep layers. The key factor for deep exploration is the development of high-quality reservoir, whic...
Differences in marine hydrocarbon accumulation between the eastern and western parts of Shunbei area, Tarim Basin
QI Lixin, DING Yong
2023, 45(1): 20-28. doi: 10.11781/sysydz202301020
Abstract(903) HTML (343) PDF-CN(204)
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From the eastern to the western part of Shunbei area in the Tarim Basin, the accumulations of marine oil and gas obviously decrease with the exploration risks significantly increasing. To find out the reason for the differences, the oil and gas accumulations in the eastern Shunbei area on the wester...
Discussion on prospecting shale oil potential of Mesoproterozoic Hongshuizhuang Formation in the Jibei Depression
LI Zhiming, SUN Zhongliang, BAO Yunjie, XU Ershe, ZHOU Yongshui, ZHANG Yunxian
2023, 45(1): 29-40. doi: 10.11781/sysydz202301029
Abstract(936) HTML (381) PDF-CN(67)
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In order to evaluate the shale oil prospecting potential of the Mesoproterozoic Hongshuizhuang Formation in the Jibei Depression, the analyses of routine Rock-Eval pyrolysis, matrix porosity and permeability, mercury intrusion and nitrogen adsorption, argon ion polishing SEM and X-ray diffraction of...
Classified characteristics of helium gas resources and controlling factors for the enrichment
CHEN Xinjun, DING Yi, YI Jingjing, CHEN Gang
2023, 45(1): 41-48. doi: 10.11781/sysydz202301041
Abstract(878) HTML (413) PDF-CN(105)
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The lack of helium resources accounts for the limited helium supply in China. It is of great significance to classify of helium-enriched natural gas according to the characteristics of helium reservoirs and the main controlling factors of helium enrichment, thus the exploration and development of he...
Lithofacies palaeogeography of Middle Permian in the Sichuan Basin and its petroleum geological significance
PENG Jinning, DU Chongjiao, LI Longlong, JIANG Xiaoqiong, PAN Wenlei, LU Yongde, LUO Kaiping
2023, 45(1): 49-59. doi: 10.11781/sysydz202301049
Abstract(1055) HTML (480) PDF-CN(111)
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Exploration discoveries have been made in the Middle Permian of the Sichuan Basin, indicating great exploration potential. However, the Middle Permian has obvious tectonic-sedimentary variation, resulting in complexity of hydrocarbon accumulation mechanism. The reconstruction of sequence lithofacies...
Controlling effect of Late Paleozoic tectonic and sedimentary differentiation on multi-type gas reservoirs in Permian, Sichuan Basin
LI Longlong, LUO Kaiping, LIU Xu, ZHANG Changjiang, CAO Qinggu, LU Yongde, PENG Jinning
2023, 45(1): 60-71. doi: 10.11781/sysydz202301060
Abstract(688) HTML (254) PDF-CN(85)
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Based on the analysis of the Late Paleozoic global tectonic background and the tectonic environment of the Upper Yangtze area, the basin prototype and the Permian lithofacies paleogeography of the Sichuan Basin, combined with the understanding of the Permian gas reservoir characteristics and accumul...
Correlation between formation pressure and hydrocarbon enrichment in Triassic Xujiahe Formation, Western Sichuan Depression
DUAN Zhengxin, LIU Yifeng, LOU Zhanghua, LIU Zhongqun
2023, 45(1): 72-79. doi: 10.11781/sysydz202301072
Abstract(1264) HTML (684) PDF-CN(84)
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The Upper Triassic Xujiahe Formation in the Xinchang structural belt of the Western Sichuan Depression is an important exploration target for tight sandstone hydrocarbon in the Sichuan Basin. Several studies are carried out in this paper to improve the effectiveness of exploration and development in...
Coupled relationship between algal assemblages and water, surface sediments in modern shallow lakes of the Songnen Plain
WANG Xue, ZHANG Xinrong, LIU Jiakang, FU Xiuli, SU Yangxin
2023, 45(1): 80-88. doi: 10.11781/sysydz202301080
Abstract(624) HTML (257) PDF-CN(43)
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In order to study the influencing factors for the enrichment of organic matter in Mesozoic and Cenozoic shale in lacustrine basins, the Pearson analyses of algal assemblages, physical and chemical properties of water body, sedimentary grain size, magnetic susceptibility and chromaticity were carried...
Oil-bearing capacity of shale in the first member of Upper Cretaceous Qingshankou Formation, Sanzhao Sag, Central Depression, Songliao Basin
KANG Shujuan, YANG Yunfeng, WANG Huajian, JIANG Wenbin, HE Kun, LIU Ranran
2023, 45(1): 89-98. doi: 10.11781/sysydz202301089
Abstract(895) HTML (300) PDF-CN(97)
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The lacustrine dark shale deposits of the Upper Cretaceous Qingshankou Formation in the Central Depression of Songliao Basin contain a considerable amount of shale oil resources, among which the shale oil exploration of the Qingshankou Formation in the Qijia-Gulong Sag has made a major breakthrough....
Logging identification and distribution characteristics of high-gamma sandstones in the 7th member of Triassic Yanchang Formation, Ordos Basin
YOU Fuliang, LIU Guangdi, SUN Mingliang, LI Chaozheng, LIU Xiangbai, AN Cheng, WANG Zixin, LI Yishu
2023, 45(1): 99-108. doi: 10.11781/sysydz202301099
Abstract(855) HTML (326) PDF-CN(78)
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A large number of sandstone interlayers were developed in the shale strata of the 7th member of the Triassic Yanchang Formation (Chang 7 member) in the Ordos Basin. These sandstone interlayers are frequently accompanied by abnormally high natural gamma values as high as 330.5 API. As a result, they ...
Fracture characteristics and hydrocarbon significance in the Chang 7 to Chang 9 members of Triassic Yanchang Formation of Gufengzhuang area, western Ordos Basin
GUO Hui, ZHAO Hongge, LI Ying, LEI Linlin, WANG Jian, LI Jun, SHAO Xiaozhou
2023, 45(1): 109-121. doi: 10.11781/sysydz202301109
Abstract(970) HTML (404) PDF-CN(79)
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Natural fractures play an important role for the exploration and development of low-permeability reservoirs in the Triassic Yanchang Formation of the Ordos Basin. Abundant hydrocarbon resources have been found in the Yanchang Formation of the Gufengzhuang area, showing good exploration prospects. Ho...
Provenance analysis and geological significance of Paleocene in Lishui Sag, East China Sea Shelf Basin
WU Zhekun, LI Qi, ZHANG Yingzhao, LI Fengxun, QIN Jun, SHAN Shuaiqiang, ZHU Zhenjun, GENG Hui, CHEN Hehe
2023, 45(1): 122-134. doi: 10.11781/sysydz202301122
Abstract(770) HTML (287) PDF-CN(64)
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The provenance evolution of Paleocene is a main factor controlling the sedimentary filling characteristics of the East China Sea Shelf Basin, and is of great significance in the exploration and development of petro-bearing basins. Based on the core samples of the Paleocene of the Lishui Sag, East Ch...
Constraints on carbonate diagenetic fluid properties by microzone in situ analysis of carbon and oxygen isotopes: a case study of Cambrian-Ordovician, Tarim Basin
HAN Jun, YOU Donghua, QIAN Yixiong, DONG Shaofeng, PENG Shoutao
2023, 45(1): 135-144. doi: 10.11781/sysydz202301135
Abstract(1095) HTML (451) PDF-CN(155)
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As an important technological measure to uncover complex sedimentary-diagenetic process, microzone in situ geochemical analysis has drawn more and more attention along with improving analytical and test levels. According to the analysis of microzone in situ carbon and oxygen isotopes in combination ...
Abnormal pressure genesis and its relationship with continental shale oil accumulation in Paleogene, Jiyang Depression, Bohai Bay Basin
MA Xiaoxiao, LI Maowen, HU Kezhen, TAO Guoliang, QIAN Menhui, CAO Tingting, LIU Peng, LI Zhiming, JIANG Qigui, LI Zheng
2023, 45(1): 145-156. doi: 10.11781/sysydz202301145
Abstract(1042) HTML (375) PDF-CN(125)
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In order to explore the effect of abnormal pressure on shale oil accumulation in the Jiyang Depression, Bohai Bay Basin, the formation pressure distribution, muddy shale lithofacies, hydrocarbon generation evolution of organic matters, clay mineral conversion, hydrocarbon retention, and the distribu...
Evolution of environmental oxidation and reduction of sea water in Three Gorges area in Early Cambrian: evidence from decoupled carbon isotopes in Luojiacun section
WANG Jin, LIN Yibo, YANG Tao
2023, 45(1): 157-167. doi: 10.11781/sysydz202301157
Abstract(620) HTML (249) PDF-CN(67)
Abstract:
The Late Neoproterozoic to Early Cambrian is a remarkable time-interval that witnessed significant biolo-gical and environmental evolutions, during which, the deep ocean was extensively anoxic, whereas the surface ocean was characterized by considerable fluctuations in redox conditions. The Lower Ca...
Microscopic characteristics of sulfur depositions in high-sulfur-content reservoirs
LI Nong, ZHAO Liqiang, HUI Dong, LI Tao, PU Zhijin, DENG Xiaohang, ZHOU Keming
2023, 45(1): 168-174. doi: 10.11781/sysydz202301168
Abstract(673) HTML (296) PDF-CN(43)
Abstract:
A large number of high-sulfur-content carbonate gas reservoirs have been discovered in the northeastern part of the Sichuan Basin, and their reserve accounts for more than half of the total natural gas reserves in the basin. However, sulfur deposition has been a major problem for a long period which...
Experimental dissolution and karst strata association of Middle Permian Maokou carbonate rocks in the northern part of Sichuan Basin
ZHANG Qingyu, JI Shaocong, ZENG Tao, XIA Wenqian, BA Junjie, DONG Hongqi, LIANG Bin
2023, 45(1): 175-184. doi: 10.11781/sysydz202301175
Abstract(799) HTML (349) PDF-CN(54)
Abstract:
Kart reservoir is important for the Middle Permian Maokou Formation in the northern part of Sichuan Basin. Based on field outcrops and drilling core data, combining both macro and micro methods, the characteristics of karst strata association of the Maokou Formation in this area was studied by the m...
Pore and throat characterization of tight reservoirs based on the methods of alloy injection and large-field image stitching
TANG Xianglu, XIAO Hanmin, JIANG Zhenxue, LIU Xuewei, YANG Zaiquan, LIU Ge, ZHANG Fan
2023, 45(1): 185-192. doi: 10.11781/sysydz202301185
Abstract(617) HTML (261) PDF-CN(55)
Abstract:
Tight oil and gas is an important part of China's oil and gas resources, and the study of related pore-throat structure is conducive to the enrichment and improvement of tight oil and gas geological theory. Taking the tight reservoir of the Triassic Yanchang Formation in the Ordos Basin as an exampl...
Characterization of oil-bearing properties in sub-micron shale pores by laser scanning confocal microscopy technology: a case study of shale in Lucaogou Formation, Junggar Basin
LU Feng, LI Zhaoyang, YANG Zhao, ZHANG Liuping, LIU Jin, LI Lulu, LIU Xiangjun
2023, 45(1): 193-202. doi: 10.11781/sysydz202301193
Abstract(1316) HTML (497) PDF-CN(158)
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Sub-micron pores and their oil-bearing properties are important information for the exploration and development of shale oil. For effective observation on oil-bearing properties of sub-micron pores by laser scanning confocal microscopy, prefilter allocation of main light splitter and detector in las...
The publication of "Theory and Simulation Experimental Technology of Oil Generation from Chinese Continental Oil Source Rocks" and the journal "Petroleum Geology & Experimental " continue to achieve excellent results in 2022
2023, 45(1): 203-203.
Abstract(189) PDF-CN(27)
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