Distribution of Hyperpycnal Flow Related Sandstone Deposits in a Lacustrine Shale System: Implication for Hydrocarbon Reservoir Exploration in the Chang 7 Oil Member of the Triassic Yanchang Formation, Ordos Basin, China

被引:0
|
作者
Sun, Pengyu [1 ,2 ]
Zhao, Lixia [3 ]
Ma, Qian [4 ]
Zhang, Wei [3 ]
Zhang, Shun [5 ]
Li, Xiao [3 ]
Wen, Juan [3 ]
Dou, Luxing [1 ,2 ]
Wen, Zhigang [1 ,2 ]
机构
[1] Yangtze Univ, Sch Resources & Environm, Wuhan 430100, Peoples R China
[2] Yangtze Univ, Key Lab Oil & Gas Resources & Explorat Technol, Minist Educ, Wuhan 430100, Peoples R China
[3] PetroChina, Changqing Oilfield Co, Oil Prod Plant 2, Qingyang 745000, Peoples R China
[4] PetroChina, Changqing Oilfield Co, Oil Prod Plant 3, Yinchuan 750006, Peoples R China
[5] Shandong Gold Min Linglong Co Ltd, Zhaoyuan 265400, Peoples R China
关键词
hyperpycnal flow; gravity flow; Triassic; Yanchang Formation; Ordos Basin; GRAVITY; TURBIDITES; MODEL;
D O I
10.3390/pr11092642
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Gravity flow deposits are important hydrocarbon reservoirs in deep lacustrine deposits. Previous studies have paid much attention to the hydrocarbon reservoirs in those intrabasinal classic turbidite deposits. However, relatively little is known about the distribution of oil reservoirs in those extrabasinal hyperpycnal flow deposits. With the help of cores and wireline logging data, the present study undertakes a description and interpretation of subsurface shale oil reservoirs in the deep lake deposits in Chang 7 member, Yanchang Formation, Ordos Basin. Parallel bedded fine sandstone (Sh), massive bedded fine sandstone (Sm), massive bedded fine sandstone with mud clasts (Smg), deformed bedded siltstone (Fd), wave-lenticular bedded siltstone (Fh) and black shale (M) were found and interpreted in those deep lake deposits. The deposits were interpreted as hyperpycnal flow deposits which developed in channel, levee and deep lacustrine facies. The development of the Chang 7 sand body increased gradually, and the sand body of Chang 71 was found to be the main position of sandy hyperpycnites. The fine description of the sand body indicated a channelized sedimentary pattern. The thick sandy hyperpycnites mainly developed in the middle of those channels, and the eastern part of the study area was found to be the main deposition position of the hyperpycnal flow deposits. From the perspective of plane overlap and single well analysis, a thick sand body is the favorable position for the development of an oil reservoir, which has a significant control effect on the reservoir scale and oil production. This research can aid in understanding the facies distribution of hyperpycnal flows and has implications for hydrocarbon reservoir exploration.
引用
收藏
页数:15
相关论文
共 50 条
  • [41] Ternary pore structure characteristics of the tight sandstone: a case study from the Chang 7 Member of the Triassic Yanchang Formation in the Ordos Basin, China
    Wang W.
    Zhu Y.
    Liang Z.
    Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology), 2024, 55 (04): : 1361 - 1373
  • [42] Types, characteristics and geological significance of event deposits of Chang 9 Member of Triassic Yanchang Formation in southwestern Ordos Basin, NW China
    Wang Z.
    Mao Z.
    Yuan X.
    Deng X.
    Hui X.
    Zhang Z.
    Cui J.
    Shiyou Kantan Yu Kaifa/Petroleum Exploration and Development, 2023, 50 (03): : 516 - 529
  • [43] Types, characteristics and geological significance of event deposits of Chang 9 Member of Triassic Yanchang Formation in southwestern Ordos Basin, NW China
    Wang, Ziye
    Mao, Zhiguo
    Yuan, Xuanjun
    Deng, Xiuqin
    Hui, Xiao
    Zhang, Zhongyi
    Cui, Jingwei
    PETROLEUM EXPLORATION AND DEVELOPMENT, 2023, 50 (03) : 588 - 602
  • [44] Geochemical Characteristics of the Chang 7 Source Rocks of the Triassic Yanchang Formation in Ordos Basin, China: Implications for Organic Matter Accumulation and Shale Oil Potential
    Hao, Lewei
    Ma, Xiaofeng
    Gao, Wenqiang
    Ren, Zhaocai
    Tao, Huifei
    Huang, Weikai
    ENERGIES, 2022, 15 (20)
  • [45] Analysis of the charging process of the lacustrine tight oil reservoir in the Triassic Chang 6 Member in the southwest Ordos Basin, China
    Xu, Zhengjian
    Liu, Luofu
    Wang, Tieguan
    Wu, Kangjun
    Dou, Wenchao
    Song, Xingpei
    CANADIAN JOURNAL OF EARTH SCIENCES, 2017, 54 (12) : 1228 - 1247
  • [46] Pore characteristics of lacustrine shale within the oil window in the Upper Triassic Yanchang Formation, southeastern Ordos Basin, China
    Guo, Huijuan
    He, Ruliang
    Jia, Wanglu
    Peng, Ping'an
    Lei, Yuhong
    Luo, Xiaorong
    Wang, Xiangzeng
    Zhang, Lixia
    Jiang, Chengfu
    MARINE AND PETROLEUM GEOLOGY, 2018, 91 : 279 - 296
  • [47] Prediction of Oil Production in a Tight Sandstone Reservoir: Triassic Chang 9 Member, Jiyuan Area, Ordos Basin, NW China
    Zhang, Zhaohui
    Liao, Jianbo
    Li, Zhiyong
    PROCESSES, 2024, 12 (02)
  • [48] Organic matter transformation ratio, hydrocarbon expulsion efficiency and shale oil enrichment type in Chang 73 shale of Upper Triassic Yanchang Formation in Ordos Basin, NW China
    Zhao W.
    Bian C.
    Li Y.
    Liu W.
    Dong J.
    Wang K.
    Zeng X.
    Shiyou Kantan Yu Kaifa/Petroleum Exploration and Development, 2023, 50 (01): : 12 - 23
  • [49] Organic matter transformation ratio, hydrocarbon expulsion efficiency and shale oil enrichment type in Chang 73 shale of Upper Triassic Yanchang Formation in Ordos Basin, NW China
    Zhao, Wenzhi
    BIAN, Congsheng
    LI, Yongxin
    LIU, Wei
    DONG, Jin
    WANG, Kun
    ZENG, Xu
    PETROLEUM EXPLORATION AND DEVELOPMENT, 2023, 50 (01) : 14 - 26
  • [50] Well logging evaluation of Triassic Chang 7 Member tight reservoirs, Yanchang Formation, Ordos Basin, NW China
    Li Chaoliu
    Li Changxi
    Hou Yuting
    Shi Yujiang
    Wang Changsheng
    Hu Falong
    Liu Mi
    PETROLEUM EXPLORATION AND DEVELOPMENT, 2015, 42 (05) : 667 - 673