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Volume 45 Issue 3
May  2023
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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2023  >  45(3): 576-586
AN Cheng, LIU Guangdi, SUN Mingliang, YOU Fuliang, WANG Zixin, CAO Yushun. Analysis of shale pore structure characteristics based on nitrogen adsorption experiment and fractal FHH model: a case study of 7th member of Triassic Yanchang Formation in Huachi area, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2023, 45(3): 576-586. doi: 10.11781/sysydz202303576
Citation: AN Cheng, LIU Guangdi, SUN Mingliang, YOU Fuliang, WANG Zixin, CAO Yushun. Analysis of shale pore structure characteristics based on nitrogen adsorption experiment and fractal FHH model: a case study of 7th member of Triassic Yanchang Formation in Huachi area, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2023, 45(3): 576-586. doi: 10.11781/sysydz202303576
shu

Analysis of shale pore structure characteristics based on nitrogen adsorption experiment and fractal FHH model: a case study of 7th member of Triassic Yanchang Formation in Huachi area, Ordos Basin

doi: 10.11781/sysydz202303576
  • 1.

    College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China

  • 2.

    State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China

  • Received Date: 2022-09-02
  • Rev Recd Date: 2023-04-13
  • Publish Date: 2023-05-28
    Abstract
  • Pore structure, as the focus of shale reservoir research, has important influence on the occurrence of shale oil. In this paper, 10 shale core samples from the 7th member of Triassic Yanchang Formation (Chang 7 member) in Huachi area, Ordos Basin were selected to carry out scanning electron microscope (SEM) observation and low-temperature nitrogen adsorption experiment, and the fractal dimension was calculated to quantitatively characterize the pore structure of shale in the research area combined with fractal FHH model. On this basis, the relationship between fractal dimension and pore structure parameters and oil-bearing parameters was discussed, and the main influencing factors of pore development of shale in the Chang 7 member were determined. The results show that the shale of the Chang 7 member in Huachi area has high organic matter abundance, which are good-to-excellent source rocks mainly composed of quartz and clay minerals, with good oil-bearing property (up to the middle oil-bearing level) and mobility. The reservoir space is dominated by intergranular pores, intragranular pores and a small amount of organic pores. There are two types of pore morphology, namely, parallel plate-shaped slit+unilateral slit and ink bottle-shaped + parallel plate-shaped slit. The pores are mainly micropores and mesopores, with macropores less developed. Most samples have fractal characteristics. The fractal dimension D1 of small pores is between 2.264 7 and 2.714 9, and the fractal dimension D2 of large pores is between 2.373 3 and 2.77 7. Among them, D2 has a good correlation with surface area, pore volume, average pore diameter and S1, which can characterize the development characteristics of pore structure and oil-bearing property of shale, while D1 can only characterize the mobility of shale oil. The pore development of shale is mainly controlled by TOC and quartz content, and has a certain relationship with feldspar content, while clay mineral content is not the main influencing factor.

     

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    • References(36)
  • [1]
    邹才能, 张国生, 杨智, 等. 非常规油气概念、特征、潜力及技术: 兼论非常规油气地质学[J]. 石油勘探与开发, 2013, 40(4): 385-399. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201304000.htm

    ZOU Caineng, ZHANG Guosheng, YANG Zhi, et al. Geological concepts, characteristics, resource potential and key techniques of unconventional hydrocarbon: on unconventional petroleum geology[J]. Petroleum Exploration and Development, 2013, 40(4): 385-399. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201304000.htm
    [2]
    YANG Zhi, ZOU Caineng, WU Songtao, et al. Formation, distribution and resource potential of the "sweet areas (sections)" of continental shale oil in China[J]. Marine and Petroleum Geology, 2019, 102: 48-60. doi: 10.1016/j.marpetgeo.2018.11.049
    [3]
    CHEN Kefei, LIU Xiaoping, LIU Jie, et al. Lithofacies and pore characterization of continental shale in the second member of the Kongdian Formation in the Cangdong Sag, Bohai Bay Basin, China[J]. Journal of Petroleum Science and Engineering, 2019, 177: 154-166. doi: 10.1016/j.petrol.2019.02.022
    [4]
    鲍芳, 俞凌杰, 芮晓庆, 等. 页岩中有机质孔隙非均质性的微观结构及电镜—拉曼联用研究[J]. 石油实验地质, 2021, 43(5): 871-879. doi: 10.11781/sysydz202105871

    BAO Fang, YU Lingjie, RUI Xiaoqing, et al. Microstructure and SEM-Raman study of organic matter pore heterogeneity in shale[J]. Petroleum Geology & Experiment, 2021, 43(5): 871-879. doi: 10.11781/sysydz202105871
    [5]
    张文凯, 施泽进, 田亚铭, 等. 联合高压压汞和恒速压汞实验表征致密砂岩孔喉特征[J]. 断块油气田, 2021, 28(1): 14-20. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT202101005.htm

    ZHANG Wenkai, SHI Zejin, TIAN Yaming, et al. The combination of high-pressure mercury injection and rate-controlled mercury injection to characterize the pore-throat structure in tight sandstone reservoirs[J]. Fault-Block Oil and Gas Field, 2021, 28(1): 14-20. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT202101005.htm
    [6]
    LI Tingwei, JIANG Zhenxue, SU Pibo, et al. Effect of laminae development on pore structure in the lower third member of the Shahejie shale, Zhanhua Sag, eastern China[J]. Interpretation, 2020, 8(1): T103-T114. doi: 10.1190/INT-2019-0055.1
    [7]
    孙中良, 李志明, 申宝剑, 等. 核磁共振技术在页岩油气储层评价中的应用[J]. 石油实验地质, 2022, 44(5): 930-940. doi: 10.11781/sysydz202205930

    SUN Zhongliang, LI Zhiming, SHEN Baojian, et al. NMR technology in reservoir evaluation for shale oil and gas[J]. Petroleum Geology & Experiment, 2022, 44(5): 930-940. doi: 10.11781/sysydz202205930
    [8]
    李楚雄, 申宝剑, 卢龙飞, 等. 松辽盆地沙河子组页岩孔隙结构表征: 基于低场核磁共振技术[J]. 油气藏评价与开发, 2022, 12(3): 468-476. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ202203009.htm

    LI Chuxiong, SHEN Baojian, LU Longfei, et al. Pore structure characterization of Shahezi Formation shale in Songliao Basin: based on low-field nuclear magnetic resonance technology[J]. Reservoir Evaluation and Development, 2022, 12(3): 468-476. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ202203009.htm
    [9]
    冯动军, 肖开华. 恒速压汞及核磁共振技术在四川盆地西部致密砂岩储层评价中的应用[J]. 石油实验地质, 2021, 43(2): 368-376. doi: 10.11781/sysydz202102368

    FENG Dongjun, XIAO Kaihua. Constant velocity mercury injection and nuclear magnetic resonance in evaluation of tight sandstone reservoirs in western Sichuan Basin[J]. Petroleum Geo-logy & Experiment, 2021, 43(2): 368-376. doi: 10.11781/sysydz202102368
    [10]
    MANDELBROT B B. On the geometry of homogeneous turbulence, with stress on the fractal dimension of the iso-surfaces of scalars[J]. Journal of Fluid Mechanics, 1975, 72(3): 401-416. doi: 10.1017/S0022112075003047
    [11]
    CAO Xiaomeng, GAO Yuan, CUI Jingwei, et al. Pore characteristics of lacustrine shale oil reservoir in the Cretaceous Qing-shankou Formation of the Songliao Basin, NE China[J]. Energies, 2020, 13(8): 2027.
    [12]
    LIU Kouqi, OSTADHASSAN M, JANG H W, et al. Comparison of fractal dimensions from nitrogen adsorption data in shale via different models[J]. RSC Advances, 2021, 11(4): 2298-2306. http://www.xueshufan.com/publication/3118704760
    [13]
    LIU Kouqi, OSTADHASSAN M, KONG Lingyun. Fractal and multifractal characteristics of pore throats in the Bakken shale[J]. Transport in Porous Media, 2019, 126(3): 579-598. http://www.onacademic.com/detail/journal_1000040411497310_86f5.html
    [14]
    曾维主. 松辽盆地青山口组页岩孔隙结构与页岩油潜力研究[D]. 广州: 中国科学院大学(中国科学院广州地球化学研究所), 2020.

    ZENG Weizhu. Pore structure and shale oil potential of Qingshankou Formation shale in Songliao Basin[D]. Guangzhou: University of Chinese Academy of Sciences (Guangzhou Institute of Geochemistry, Chinese Academy of Sciences), 2020.
    [15]
    耳闯, 罗安湘, 赵靖舟, 等. 鄂尔多斯盆地华池地区三叠系延长组长7段富有机质页岩岩相特征[J]. 地学前缘, 2016, 23(2): 108-117. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201602013.htm

    ER Chuang, LUO Anxiang, ZHAO Jingzhou, et al. Lithofacies features of organic-rich shale of the Triassic Yanchang Formation in Huachi area, Ordos Basin[J]. Earth Science Frontiers, 2016, 23(2): 108-117. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201602013.htm
    [16]
    王震. 鄂尔多斯盆地华池地区长7泥页岩综合评价[D]. 北京: 中国地质大学(北京), 2013.

    WANG Zhen. Comprehensive evaluation of Chang 7 shale in Huachi area, Ordos Basin[D]. Beijing: China University of Geosciences (Beijing), 2013.
    [17]
    李超正. 鄂尔多斯盆地延长组长7致密油成藏条件研究[D]. 北京: 中国石油大学(北京), 2016.

    LI Chaozheng. Accumulation conditions research on tight oil reservoir of Chang 7 member of Yangchang Formation in Ordos Basin[D]. Beijing: China University of Petroleum (Beijing), 2016.
    [18]
    曹茜. 鄂尔多斯盆地延长组长7段富有机质泥页岩储层微孔隙特征及表征技术[D]. 成都: 成都理工大学, 2016.

    CAO Qian. Characterization and techniques of micropores in organic-rich shale of Chang 7th of Yanchang Formation, Ordos Basin[D]. Chengdu: Chengdu University of Technology, 2016.
    [19]
    付金华, 李士祥, 牛小兵, 等. 鄂尔多斯盆地三叠系长7段页岩油地质特征与勘探实践[J]. 石油勘探与开发, 2020, 47(5): 870-883. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK202005005.htm

    FU Jinhua, LI Shixiang, NIU Xiaobing, et al. Geological characteristics and exploration of shale oil in Chang 7 member of Triassic Yanchang Formation, Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2020, 47(5): 870-883. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK202005005.htm
    [20]
    杨华, 李士祥, 刘显阳. 鄂尔多斯盆地致密油、页岩油特征及资源潜力[J]. 石油学报, 2013, 34(1): 1-11. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201301000.htm

    YANG Hua, LI Shixiang, LIU Xianyang. Characteristics and resource prospects of tight oil and shale oil in Ordos Basin[J]. Acta Petrolei Sinica, 2013, 34(1): 1-11. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201301000.htm
    [21]
    PFEIFERPER P, AVNIR D. Chemistry in noninteger dimensions between two and three. I. Fractal theory of heterogeneous surfaces[J]. The Journal of Chemical Physics, 1983, 79(7): 3558-3565. http://www.researchgate.net/profile/David_Avnir/publication/253815538_Chemistry_in_Noninteger_Dimensions_Between_Two_and_Three._I._Fractal_Theory_of_Heterogenous_Surfaces/links/53e8cf9a0cf25d674ea86b47.pdf
    [22]
    唐玄, 郑逢赞, 梁国栋, 等. 黔北寒武系牛蹄塘组页岩孔隙分形表征[J]. 地学前缘, 2023, 30(3): 110-123. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY202303009.htm

    TANG Xuan, ZHENG Fengzan, LIANG Guodong, et al. Fractal characterization of pore structure of Cambrian Niutitang shale in northern Guizhou province, Southwestern China[J]. Earth Science Frontiers, 2023, 30(3): 110-123. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY202303009.htm
    [23]
    孙中良, 王芙蓉, 韩元佳, 等. 潜江凹陷盐间页岩油储层孔隙结构分形表征与评价[J]. 地质科技通报, 2022, 41(4): 125-137. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ202204014.htm

    SUN Zhongliang, WANG Furong, HAN Yuanjia, et al. Characte-rization and evaluation of fractal dimension of intersalt shale oil reservoirs in Qianjiang Depression[J]. Bulletin of Geological Science and Technology, 2022, 41(4): 125-137. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ202204014.htm
    [24]
    JARVIE D M. Shale resource systems for oil and gas: Part 2— Shale-oil resource systems[M]//BREYER J A. Shale reservoirs— giant resources for the 21st century. [S. l. ]: American Association of Petroleum Geologists, 2012.
    [25]
    LOUCKS R G, REED R M, RUPPEL S C, et al. Morphology, genesis, and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett shale[J]. Journal of Sedimentary Research, 2009, 79(12): 848-861. http://www.wwgeochem.com/app/download/7753455/Loucks
    [26]
    黄伟凯, 周新平, 刘江艳, 等. 鄂尔多斯盆地华池地区延长组7段页岩油储层孔隙结构特征及控制因素[J]. 天然气地球科学, 2022, 33(12): 1951-1968. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX202212004.htm

    HUANG Weikai, ZHOU Xinping, LIU Jiangyan, et al. Characte-ristics and controlling factors of pore structure of shale in the seventh member of Yanchang Formation in Huachi area, Ordos Basin[J] Natural Gas Geoscience, 2022, 33(12): 1951-1968. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX202212004.htm
    [27]
    SING K S W. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984)[J]. Pure and Applied Chemistry, 1985, 57(4): 603-619.
    [28]
    李廷微. 沾化凹陷页岩储层孔隙结构特征及其对含油性的控制[D]. 北京: 中国石油大学(北京), 2018.

    LI Tingwei. Pore structure characteristics of shale reservoirs and their effects on oil-bearing properties in the Zhanhua Sag[D]. Beijing: China University of Petroleum (Beijing), 2018.
    [29]
    俞雨溪. 鄂尔多斯盆地延长组页岩内粉砂质纹层孔隙结构和物性特征研究[D]. 青岛: 中国石油大学(华东), 2013.

    YU Yuxi. Pore-structure and petrophysical properties of silt laminae in lacustrine gas shale: example from the Yanchang Group, Ordos Basin[D]. Qingdao: China University of Petroleum (East China), 2013.
    [30]
    慕尚超. 马朗凹陷芦草沟组泥页岩孔隙结构表征及其含油性评价[D]. 西安: 西安石油大学, 2021.

    MU Shangchao. Characterization of the pore structure of mud shales of the Luchaogou Formation in the Malang Depression and evaluation of their oil content[D]. Xi'an: Xi'an Shiyou University, 2021.
    [31]
    朱晓萌, 朱文兵, 曹剑, 等. 页岩油可动性表征方法研究进展[J]. 新疆石油地质, 2019, 40(6): 745-753. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201906017.htm

    ZHU Xiaomeng, ZHU Wenbing, CAO Jian, et al. Research progress on shale oil mobility characterization[J]. Xinjiang Petroleum Geology, 2019, 40(6): 745-753. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201906017.htm
    [32]
    QIAN Chao, LI Xizhe, SHEN Weijun, et al. Study on the pore structure and fractal characteristics of different lithofacies of Wufeng-Longmaxi formation shale in southern Sichuan Basin, China[J]. ACS Omega, 2022, 7(10): 8724-8738. doi: 10.1021/acsomega.1c06913
    [33]
    李吉君, 史颖琳, 黄振凯, 等. 松辽盆地北部陆相泥页岩孔隙特征及其对页岩油赋存的影响[J]. 中国石油大学学报(自然科学版), 2015, 39(4): 27-34. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201504004.htm

    LI Jijun, SHI Yinglin, HUANG Zhenkai, et al. Pore characteristics of continental shale and its impact on storage of shale oil in northern Songliao Basin[J]. Journal of China University of Petroleum, 2015, 39(4): 27-34. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201504004.htm
    [34]
    YANG Yuanyuan, ZHANG Jinchuan, XU Longfei, et al. Pore structure and fractal characteristics of deep shale: a case study from Permian Shanxi Formation shale, from the Ordos Basin[J]. ACS Omega, 2022, 7(11): 9229-9243. doi: 10.1021/acsomega.1c05779
    [35]
    梁利喜, 熊健, 刘向君. 川南地区龙马溪组页岩孔隙结构的分形特征[J]. 成都理工大学学报(自然科学版), 2015, 42(6): 700-708. https://www.cnki.com.cn/Article/CJFDTOTAL-CDLG201506009.htm

    LIANG Lixi, XIONG Jian, LIU Xiangjun. Fractal characteristics of pore structure of Longmaxi Formation shale in south of Sichuan Basin, China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2015, 42(6): 700-708. https://www.cnki.com.cn/Article/CJFDTOTAL-CDLG201506009.htm
    [36]
    陈居凯, 朱炎铭, 崔兆帮, 等. 川南龙马溪组页岩孔隙结构综合表征及其分形特征[J]. 岩性油气藏, 2018, 30(1): 55-62. https://www.cnki.com.cn/Article/CJFDTOTAL-YANX201801006.htm

    CHEN Jukai, ZHU Yanming, CUI Zhaobang, et al. Pore structure and fractal characteristics of Longmaxi shale in southern Sichuan Basin[J]. Lithologic Reservoirs, 2018, 30(1): 55-62. https://www.cnki.com.cn/Article/CJFDTOTAL-YANX201801006.htm
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