IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i4p583-d205378.html
   My bibliography  Save this article

Fractal Characterization of Nanopore Structure in Shale, Tight Sandstone and Mudstone from the Ordos Basin of China Using Nitrogen Adsorption

Author

Listed:
  • Xiaohong Li

    (Central Laboratory of Geological Sciences, RIPED, PetroChina, Beijing 100083, China)

  • Zhiyong Gao

    (Central Laboratory of Geological Sciences, RIPED, PetroChina, Beijing 100083, China)

  • Siyi Fang

    (Research Institute of Enhanced Oil Recovery, China University of Petroleum, Beijing 102249, China)

  • Chao Ren

    (Central Laboratory of Geological Sciences, RIPED, PetroChina, Beijing 100083, China)

  • Kun Yang

    (Research Institute of Enhanced Oil Recovery, China University of Petroleum, Beijing 102249, China)

  • Fuyong Wang

    (Research Institute of Enhanced Oil Recovery, China University of Petroleum, Beijing 102249, China)

Abstract

The characteristics of the nanopore structure in shale, tight sandstone and mudstone from the Ordos Basin of China were investigated by X-ray diffraction (XRD) analysis, porosity and permeability tests and low-pressure nitrogen adsorption experiments. Fractal dimensions D 1 and D 2 were determined from the low relative pressure range (0 < P/P 0 < 0.4) and the high relative pressure range (0.4 < P/P 0 < 1) of nitrogen adsorption data, respectively, using the Frenkel–Halsey–Hill (FHH) model. Relationships between pore structure parameters, mineral compositions and fractal dimensions were investigated. According to the International Union of Pure and Applied Chemistry (IUPAC) isotherm classification standard, the morphologies of the nitrogen adsorption curves of these 14 samples belong to the H2 and H3 types. Relationships among average pore diameter, Brunner-Emmet-Teller (BET) specific surface area, pore volume, porosity and permeability have been discussed. The heterogeneities of shale nanopore structures were verified, and nanopore size mainly concentrates under 30 nm. The average fractal dimension D 1 of all the samples is 2.1187, varying from 1.1755 to 2.6122, and the average fractal dimension D 2 is 2.4645, with the range from 2.2144 to 2.7362. Compared with D 1 , D 2 has stronger relationships with pore structure parameters, and can be used for analyzing pore structure characteristics.

Suggested Citation

  • Xiaohong Li & Zhiyong Gao & Siyi Fang & Chao Ren & Kun Yang & Fuyong Wang, 2019. "Fractal Characterization of Nanopore Structure in Shale, Tight Sandstone and Mudstone from the Ordos Basin of China Using Nitrogen Adsorption," Energies, MDPI, vol. 12(4), pages 1-18, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:4:p:583-:d:205378
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/4/583/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/12/4/583/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Tomasz Kalak & Ryszard Cierpiszewski & Małgorzata Ulewicz, 2021. "High Efficiency of the Removal Process of Pb(II) and Cu(II) Ions with the Use of Fly Ash from Incineration of Sunflower and Wood Waste Using the CFBC Technology," Energies, MDPI, vol. 14(6), pages 1-22, March.
    2. Xing Zeng & Weiqiang Li & Jue Hou & Wenqi Zhao & Yunyang Liu & Yongbo Kang, 2022. "Fractal Characteristics of Pore-Throats Structure and Quality Evaluation of Carbonate Reservoirs in Eastern Margin of Pre-Caspian Basin," Energies, MDPI, vol. 15(17), pages 1-13, August.
    3. Xueping Zhang & Youquan Liu & Yuzhou Liu & Chuanrong Zhong & Pengfei Zhang, 2023. "Salt Ion Diffusion Behavior and Adsorption Characteristics of Fracturing Fluid in Tight Sandstone Gas Reservoir," Energies, MDPI, vol. 16(6), pages 1-19, March.
    4. Jianchao Cai & Zhien Zhang & Qinjun Kang & Harpreet Singh, 2019. "Recent Advances in Flow and Transport Properties of Unconventional Reservoirs," Energies, MDPI, vol. 12(10), pages 1-5, May.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:12:y:2019:i:4:p:583-:d:205378. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.