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2021 Vol. 43, No. 4

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2021, 43(4): .
Abstract(229) PDF-CN(68)
Abstract:
Key structural periods and Permian tight gas accumulation response in Hangjinqi area, Ordos Basin
LUO Kaiping, YANG Fan, LU Yongde, LIU Zhaoqian, TANG Yong
2021, 43(4): 557-568. doi: 10.11781/sysydz202104557
Abstract(1107) HTML (225) PDF-CN(228) Cited By (20)
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Critical tectonic period is a critical time point that characterizes the genetic connection and causal relation (accumulation response) between tectonic effect and oil/gas accumulation in large superposition basins, it is also an important "window" for analyzing accumulation evolution and accumulati...
Fault systems and their relationships to oil and gas in Dabancheng subsag, Chaiwopu Sag, Junggar Basin
YUAN Haowei, CHEN Shuping, Dai Kun, YU Hongzhou, WANG Xinpeng, WANG Yuxin, ZHAO Huaibo
2021, 43(4): 569-579. doi: 10.11781/sysydz202104569
Abstract(1001) HTML (306) PDF-CN(118) Cited By (5)
Abstract:
The Chaiwopu Sag of Junggar Basin experienced a major breakthrough in oil and gas exploration for the first time in the late 1980s, however, the exploration effect in this area is still restricted by the complexity of faults and the uneven distribution of oil and gas. As the main body of the sag, th...
Enrichment model of shale gas in southeastern Sichuan Basin: a case study of Upper Ordovician Wufeng and Lower Silurian Longmaxi formations in Dingshan area
NI Kai, WANG Mingfa, LI Xiang
2021, 43(4): 580-588. doi: 10.11781/sysydz202104580
Abstract(716) HTML (196) PDF-CN(112) Cited By (17)
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Based on the understanding of the basic geological conditions of shale gas from the Upper Ordovician Wufeng Formation to the Lower Silurian Longmaxi Formation in Dingshan area of the southeastern Sichuan Basin, the occurrence, migration mode and intensity of natural gas in the shale gas system were ...
Pore structure of continental shale reservoirs in Lower Jurassic Ziliujing Formation, northeastern Sichuan Basin
FU Xiaoping, YANG Tao
2021, 43(4): 589-598. doi: 10.11781/sysydz202104589
Abstract(822) HTML (343) PDF-CN(99) Cited By (25)
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The accumulation and enrichment of shale gas were significantly influenced by the pore structure of shales. In this study, thin section observation, Argon ionization-scanning electron microscopy analysis, physical property test, mercury injection-N2 adsorption combination, X-ray diffraction whole ro...
Existence and geological significance of pyrite in the organic-rich shale of Lower Cambrian Niutitang Formation in Upper Yangtze region
LU Zhengwei, TANG Xuan, ZHANG Tongwei, WANG Yufang, ZHANG Jiazheng, MENG Qingqiang, MA Zijie, HE Yi, SHAO Deyong
2021, 43(4): 599-610. doi: 10.11781/sysydz202104599
Abstract(1161) HTML (585) PDF-CN(118) Cited By (10)
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The existence of pyrite provides a basis for the restoration of sedimentary and diagenetic environment, also, it can be regarded as a reference for the prediction of organic-rich shale. Shales of the Lower Cambrian Niutitang Formation drilled at three different sedimentary locations (wells Yichang E...
Differential mechanisms of organic matter accumulation of source rocks in the Lower Cambrian Qiongzhusi Formation and implications for gas exploration fields in Sichuan Basin
YANG Yu, LUO Bing, ZHANG Benjian, XIAO Di, XIAO Wenyao, CAO Jian
2021, 43(4): 611-619. doi: 10.11781/sysydz202104611
Abstract(1034) HTML (265) PDF-CN(146) Cited By (28)
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The marine facies highly mature natural gas system with the Lower Cambrian Qiongzhusi Formation as the source rock in the Sichuan Basin is a global model in this field. To deepen the geological understanding of high quality source rocks and the natural gas exploration areas in the Sichuan Basin, tak...
Influence of Permian basaltic volcanic activity on coal-bearing shale reservoirs, Southern Guizhou Depression
LI Xincheng, HOU Yuguang, CHEN Zhenhong, HE Sheng, LIANG Yaqi, LIU Yukun, SONG Yingrui, YU Rui
2021, 43(4): 620-627. doi: 10.11781/sysydz202104620
Abstract(595) HTML (200) PDF-CN(83) Cited By (3)
Abstract:
To investigate the influences of volcanic activities on shale reservoirs, a case study was carried out on the Permian Mount Emei basalt and coal-bearing shale of Longtan Formation in the Southern Guizhou Depression. Based on the analytical results of total organic carbon content, XRD, vitrinite refl...
Characteristics and constrains of low-permeability reservoirs in the first member of Eocene Liushagang Formation, Weixinan Sag, Beibuwan Basin
DENG Xiaoliang, YANG Xibing, YOU Li, WU Shijiu, ZHONG Jia, ZHU Peiyuan, DAI Long
2021, 43(4): 628-637. doi: 10.11781/sysydz202104628
Abstract(858) HTML (213) PDF-CN(88) Cited By (5)
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Reservoir analysis data such as core, thin-section, physical property and scanning electron microscope (SEM) were applied in this paper to study the reservoir characteristics and main constrains of the first member of Eocene Liushagang Formation in the Weixinan Sag, Beibuwan Basin. Reservoir feature...
Sedimentary responses of tectonic events in Miocene, western margin of South China Sea: a case study of Wan'an Basin
ZHANG Daojun, HE Yunlong, LU Biyu, WANG Yahui, LIU Juan, YANG Yunliu, XIAO Hongyi
2021, 43(4): 638-647. doi: 10.11781/sysydz202104638
Abstract(616) HTML (163) PDF-CN(76) Cited By (2)
Abstract:
The Wan'an Basin is located on the southwestern margin of the South China Sea, and its unique tectonic position has made its filling evolution an important window to study the expansion of the southwest submarine basin and the strike-slip faults on the western margin. Based on the results of core an...
Source of hydrocarbons discovered from Cambrian sub-salt dolomite in Bachu uplift area, Tarim Basin
CAO Zicheng, ZHU Xiuxiang, WU Xian, XU Qinqi, LU Qinghua, LI Jianjiao, JIANG Haijun
2021, 43(4): 648-654. doi: 10.11781/sysydz202104648
Abstract(728) HTML (218) PDF-CN(90) Cited By (4)
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Exploration experiences have showed that the main source rocks of the Lower Cambrian have not been developed in the Bachu uplift; however, the well MB1 in this area had a good oil and gas showing in the Lower Cambrian.To clarify the hydrocarbon source of well MB1 and evaluate the exploration potenti...
Dissolution experiments and geological implications of tight sandstones in the Xujiahe Formation of Upper Triassic, Sichuan Basin
YANG Wei, XIE Wuren, YU Lingjie, WEI Guoqi, JIN Hui, FAN Ming, SHEN Juehong, HAO Cuiguo, WANG Xiaodan, LIU Weihong
2021, 43(4): 655-663. doi: 10.11781/sysydz202104655
Abstract(798) HTML (330) PDF-CN(88) Cited By (14)
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The Upper Triassic Xujiahe Formation in the Sichuan Basin is a tight sandstone reservoir with developed dissolution pores, but its formation mechanism is still unclear. In this paper, three samples, including feldspathic lithic, lithic arkose and feldspathic quartz sandstones of the Xujiahe Formatio...
Genetic mechanism of pyrolytically desorbed hydrocarbon
LI Guangzhi, NING Lirong, WANG Guojian, HU Bin
2021, 43(4): 664-669. doi: 10.11781/sysydz202104664
Abstract(590) HTML (144) PDF-CN(89)
Abstract:
In the geochemical exploration for oil and gas, the test data of pyrolytically desorbed hydrocarbons have the abnormal characteristics that the relative content of olefins is higher than that of alkanes with the same carbon number, and the relative content of isoparaffins is higher than that of norm...
The anomalies of high-precision geochemical exploration in well AT2 area of Tahe Oil Field, Tarim Basin and its geological significance for production
YANG Min, CHEN Shuyang, WANG Guojian
2021, 43(4): 670-677. doi: 10.11781/sysydz202104670
Abstract(498) HTML (167) PDF-CN(64)
Abstract:
To evaluate the hydrocarbon potential of multiple traps in the middle and up oil groups of Triassic, an intensive oil and gas geochemical exploration has been carried out in the well AT2 area of the Tahe Oil Field of the Tarim Basin by the means of hydrocarbon microseepage-based high-precision geoch...
Hydrocarbon generation characteristics and significance of accumulation of Upper Paleozoic source rocks in Dongpu Sag, Bohai Bay Basin
WANG Xuejun, ZHOU Yongshui, LI Honglei, JIA Binfeng, ZHANG Yingying
2021, 43(4): 678-688. doi: 10.11781/sysydz202104678
Abstract(642) HTML (259) PDF-CN(92) Cited By (3)
Abstract:
In order to clarify the conditions and rules of hydrocarbon accumulation of the Upper Paleozoic in the Dongpu Sag of Bohai Bay Basin, source rock evaluation, pyrolysis experiment and basin modelling were carried out in this paper, the history of hydrocarbon generation and intensity of source rocks h...
Reservoir space characterization of vuggy carbonate reservoirs with multiple scales: a case study of Ma 5-7 interval, Middle Ordovician Majiagou Formation, Daniudi area, Ordos Basin
DING Xiaoqi, LIU Xin, QI Zhuangzhuang, ZHANG Wei, LIU Sihong
2021, 43(4): 689-696. doi: 10.11781/sysydz202104689
Abstract(674) HTML (234) PDF-CN(101) Cited By (14)
Abstract:
The reservoir space of carbonate rocks is of multiple scales and genesis mechanisms, and it is difficult to accurately demonstrate the reservoir space as well as physical properties.Millimeter-, micro- and nano-scale reservoir spaces were all developed in the Ma 5-7 interval (the 7th sub-member of t...
Prediction of single-well-constrained recoverable reserves in beach bar sand reservoir using different fracturing methods
SU Yinghong
2021, 43(4): 697-703. doi: 10.11781/sysydz202104697
Abstract(551) HTML (239) PDF-CN(52) Cited By (8)
Abstract:
Single-well-constrained recoverable reserve is an important index to evaluate whether the development of beach bar sand reservoir is economically feasible. Due to the characteristics of pressure sensitive effect, start-up pressure gradient and different fracturing methods, it is difficult to apply t...
Characterization method of heterogeneity for Chang 8 tight reservoir in Honghe oil field, southern margin of Ordos Basin
XIA Dongling, WU Yue, XIA Dongdong, GUO Xiujuan, ZOU Min
2021, 43(4): 704-712. doi: 10.11781/sysydz202104704
Abstract(1727) HTML (390) PDF-CN(66) Cited By (20)
Abstract:
Due to the complexity of accumulation conditions of Chang 8 tight reservoir in Honghe oil field, the southern margin of the Ordos Basin, the geological "sweet spots" are small and scattered, and the reservoir is remarkably heterogeneous. The Honghe 36 well block of the Honghe oil field was taken as ...
Separation of steranes and hopanes by domestic X-type molecular sieves
LI Erting, XIANG Baoli, LI Ji, ROUZI Dilidaer, WANG Huitong, MA Wanyun, LIU Cuimin, ZHANG Xiaogang
2021, 43(4): 713-720. doi: 10.11781/sysydz202104713
Abstract(497) HTML (258) PDF-CN(45) Cited By (2)
Abstract:
Domestic 10X-type and 13X-type molecular sieves were used for the adsorption and desorption experiments of steranes and hopanes, and their stable carbon isotopic fractionation by the two kinds of molecular sieves during separation process was discussed in detail. These two kinds of molecular sieves ...
Segmented prediction of TOC based on lithology: a case study of the lower sub-member of the third member of the Eocene Shahejie Formation, Dongying Sag, Bohai Bay Basin
ZHAO Linjie, LU Jianlin, WANG Baohua, LI Hao, SONG Zhenxiang, ZHANG Yanxia
2021, 43(4): 721-727. doi: 10.11781/sysydz202104721
Abstract(537) HTML (249) PDF-CN(57) Cited By (4)
Abstract:
The continental mud shale has a strong heterogeneity, and the prediction of its mineral composition, TOC (total organic carbon content) and other parameters is critical for the evaluation and optimization of continental shale oil and gas abundance. To obtain the vertical distribution characteristics...
Transfer system reform for oil and gas mineral rights and value of reserves in China
MAO Yi
2021, 43(4): 728-736. doi: 10.11781/sysydz202104728
Abstract(640) HTML (175) PDF-CN(75) Cited By (9)
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At present, in order to adapt to the reform of national oil and gas mining right system, the domestic oil and gas industry is exploring the competitive transfer of mineral rights and the exploration of reserve value, which is a new topic in China. In order to give full play to the fundamental positi...
2021, 43(4): 737-737.
Abstract(308) PDF-CN(47) Cited By (1)
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