Comparison of fractal dimensions from nitrogen adsorption data in shale via different models

被引:33
|
作者
Liu, Kouqi [1 ]
Ostadhassan, Mehdi [2 ]
Jang, Ho Won [3 ]
Zakharova, Natalia V. [1 ]
Shokouhimehr, Mohammadreza [3 ]
机构
[1] Cent Michigan Univ, Dept Earth & Atmospher Sci, Mt Pleasant, MI 48859 USA
[2] Northeast Petr Univ, Minist Educ, Key Lab Continental Shale Hydrocarbon Accumulat &, Daqing 163318, Peoples R China
[3] Seoul Natl Univ, Res Inst Adv Mat, Dept Mat Sci & Engn, Seoul 08826, South Korea
基金
新加坡国家研究基金会;
关键词
PORE STRUCTURE CHARACTERIZATION; GAS-ADSORPTION; BAKKEN SHALE; POROUS-MEDIA; ROUGHNESS; BASIN; THERMODYNAMICS; SCATTERING; SICHUAN;
D O I
10.1039/d0ra09052b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The roughness of pore surfaces in shale reservoirs can affect the fluid flow, which makes it necessary to be characterized. Fractal dimension, a key component in fractal geometry, can be used to describe the surface irregularities. In this paper, we evaluated and compared the fractal dimensions of several shale samples with three major fractal models based on nitrogen adsorption isotherms. The results showed that Frenkel-Halsey-Hill (FHH), Neimark, and Wang-Li models all can be applied for fractal dimension characterization of shale samples. From theoretical thermodynamics, these three models should be considered identical based on the FHH equation. However, the experimental data obtained from these samples showed that the fractal dimensions that are derived from the Neimark model and Wang-Li model are the same while a discrepancy was observed with the results from the FHH model. The difference in the fractal dimensions in the experimental data among these three models was attributed to the micropore structures. It was found that as the micropore surface area or the micropore volume increases in the samples, the difference in the fractal dimensions would increase as well. If the number of micropores present in the samples is limited, all three models can become suitable for fractal dimension calculation in shale samples, otherwise, the Neimark or Wang-Li model is preferred.
引用
收藏
页码:2298 / 2306
页数:9
相关论文
共 50 条
  • [11] SEPARATION OF NITROGEN COMPOUNDS BY ADSORPTION FROM SHALE OIL
    SMITH, JR
    SMITH, CR
    DINNEEN, GU
    ANALYTICAL CHEMISTRY, 1950, 22 (07) : 867 - 870
  • [12] Fractal Characterization of Nanopore Structure in Shale, Tight Sandstone and Mudstone from the Ordos Basin of China Using Nitrogen Adsorption
    Li, Xiaohong
    Gao, Zhiyong
    Fang, Siyi
    Ren, Chao
    Yang, Kun
    Wang, Fuyong
    ENERGIES, 2019, 12 (04)
  • [13] Deriving coal fractal dimensions from low-pressure nitrogen adsorption isotherms applying an integrated method
    Wood, David A.
    APPLIED GEOCHEMISTRY, 2021, 131
  • [14] Fractal Analysis of Pore Structure Differences Between Shale and Sandstone Based on the Nitrogen Adsorption Method
    Xu, Sai
    Yang, Zhengming
    Wu, Songtao
    Wang, Lei
    Wei, Wei
    Yang, Feng
    Cai, Jianchao
    NATURAL RESOURCES RESEARCH, 2022, 31 (03) : 1759 - 1773
  • [15] An investigation of the fractal characteristics of the Upper Ordovician Wufeng Formation shale using nitrogen adsorption analysis
    Liang, Lixi
    Xiong, Jian
    Liu, Xiangjun
    JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2015, 27 : 402 - 409
  • [16] Fractal Analysis of Pore Structure Differences Between Shale and Sandstone Based on the Nitrogen Adsorption Method
    Sai Xu
    Zhengming Yang
    Songtao Wu
    Lei Wang
    Wei Wei
    Feng Yang
    Jianchao Cai
    Natural Resources Research, 2022, 31 : 1759 - 1773
  • [17] Comparison of fractal dimensions of soils estimated from adsorption isotherms, mercury intrusion, and particle size distribution
    Sokolowska, Z
    Hajnos, M
    Hoffmann, C
    Renger, M
    Sokolowski, S
    JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE, 2001, 164 (05) : 591 - 599
  • [18] On the pore size distributions and fractal dimensions of activated carbons evaluated on the basis of the analysis of nitrogen, argon and benzene vapour adsorption data
    Trznadel, BJ
    Swiatkowski, A
    ADSORPTION SCIENCE & TECHNOLOGY, 1999, 17 (04) : 303 - 318
  • [19] Surface fractal dimensions of synthetic clay hydrous iron oxide associations from nitrogen adsorption isotherms and mercury porosimetry
    Celis, R
    Cornejo, J
    Hermosin, MC
    CLAY MINERALS, 1996, 31 (03) : 355 - 363
  • [20] FRACTAL DIMENSION AND ITS INFLUENCING FACTORS OF CONTINENTAL SHALE OIL RESERVOIR BASED ON NITROGEN ADSORPTION EXPERIMENTS
    Sun, Xianda
    Zhao, Mengqing
    Zhou, Zining
    Li, Jian
    FRESENIUS ENVIRONMENTAL BULLETIN, 2022, 31 (06): : 5758 - 5765