IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i22p8354-d967098.html
   My bibliography  Save this article

Shale Microstructure Characteristics under the Action of Supercritical Carbon Dioxide (Sc-CO 2 )

Author

Listed:
  • Chunsheng Yu

    (State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100089, China
    Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China)

  • Xiao Zhao

    (Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China)

  • Qi Jiang

    (Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China)

  • Xiaosha Lin

    (School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China)

  • Hengyuan Gong

    (Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China)

  • Xuanqing Chen

    (Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China)

Abstract

Supercritical carbon dioxide (SC-CO 2 ) is suitable to extract low-polar organics and to assist in the dissolution of pores and fractures in shale. In this work, we investigate the effect of temperature on the structure of five shale samples via high pressure reaction assisted with SC-CO 2 . Shale samples were analyzed using X-ray diffraction, field emission scanning electron microscopy, and ImageJ software. Due to the extraction of CO 2 , after Sc-CO 2 treatment, carbonate and clay content decreased, while quartz and plagioclase increased slightly, which improved gas and oil flow in microscopic pores and shale cracks. Shale samples showed an increase in surface fracture area as experimental temperature increased. Since Sc-CO 2 fluid density and solubility increase with temperature, more organics can be extracted from shale pores and fractures, resulting in newly formed pores and fractures. As a result, the threshold temperature for shale high-temperature Sc-CO 2 cracking was confirmed to be 400 °C, and the fracture area increased by more than 45% at this temperature. Based on the findings of this study, Sc-CO 2 technology can be used to potentially recover low-maturity shale oil efficiently.

Suggested Citation

  • Chunsheng Yu & Xiao Zhao & Qi Jiang & Xiaosha Lin & Hengyuan Gong & Xuanqing Chen, 2022. "Shale Microstructure Characteristics under the Action of Supercritical Carbon Dioxide (Sc-CO 2 )," Energies, MDPI, vol. 15(22), pages 1-9, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:22:p:8354-:d:967098
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/22/8354/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/22/8354/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Lyu, Qiao & Long, Xinping & Ranjith, P.G. & Tan, Jingqiang & Kang, Yong & Wang, Zhanghu, 2018. "Experimental investigation on the mechanical properties of a low-clay shale with different adsorption times in sub-/super-critical CO2," Energy, Elsevier, vol. 147(C), pages 1288-1298.
    2. Kang, Zhiqin & Zhao, Yangsheng & Yang, Dong, 2020. "Review of oil shale in-situ conversion technology," Applied Energy, Elsevier, vol. 269(C).
    3. Wang, Qiang & Chen, Xi & Jha, Awadhesh N. & Rogers, Howard, 2014. "Natural gas from shale formation – The evolution, evidences and challenges of shale gas revolution in United States," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 1-28.
    4. Lu, Yiyu & Chen, Xiayu & Tang, Jiren & Li, Honglian & Zhou, Lei & Han, Shuaibin & Ge, Zhaolong & Xia, Binwei & Shen, Huajian & Zhang, Jing, 2019. "Relationship between pore structure and mechanical properties of shale on supercritical carbon dioxide saturation," Energy, Elsevier, vol. 172(C), pages 270-285.
    5. Jiang, Yongdong & Luo, Yahuang & Lu, Yiyu & Qin, Chao & Liu, Hui, 2016. "Effects of supercritical CO2 treatment time, pressure, and temperature on microstructure of shale," Energy, Elsevier, vol. 97(C), pages 173-181.
    6. Middleton, Richard S. & Carey, J. William & Currier, Robert P. & Hyman, Jeffrey D. & Kang, Qinjun & Karra, Satish & Jiménez-Martínez, Joaquín & Porter, Mark L. & Viswanathan, Hari S., 2015. "Shale gas and non-aqueous fracturing fluids: Opportunities and challenges for supercritical CO2," Applied Energy, Elsevier, vol. 147(C), pages 500-509.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Zhou, Junping & Tian, Shifeng & Zhou, Lei & Xian, Xuefu & Yang, Kang & Jiang, Yongdong & Zhang, Chengpeng & Guo, Yaowen, 2020. "Experimental investigation on the influence of sub- and super-critical CO2 saturation time on the permeability of fractured shale," Energy, Elsevier, vol. 191(C).
    2. Qin, Chao & Jiang, Yongdong & Luo, Yahuang & Zhou, Junping & Liu, Hao & Song, Xiao & Li, Dong & Zhou, Feng & Xie, Yingliang, 2020. "Effect of supercritical CO2 saturation pressures and temperatures on the methane adsorption behaviours of Longmaxi shale," Energy, Elsevier, vol. 206(C).
    3. Lu, Yiyu & Xu, Zijie & Li, Honglian & Tang, Jiren & Chen, Xiayu, 2021. "The influences of super-critical CO2 saturation on tensile characteristics and failure modes of shales," Energy, Elsevier, vol. 221(C).
    4. Bai, Bing & Ni, Hong-jian & Shi, Xian & Guo, Xing & Ding, Lu, 2021. "The experimental investigation of effect of supercritical CO2 immersion on mechanical properties and pore structure of shale," Energy, Elsevier, vol. 228(C).
    5. Ahmed Fatah & Ziad Bennour & Hisham Ben Mahmud & Raoof Gholami & Md. Mofazzal Hossain, 2020. "A Review on the Influence of CO 2 /Shale Interaction on Shale Properties: Implications of CCS in Shales," Energies, MDPI, vol. 13(12), pages 1-27, June.
    6. Li, Sihai & Zhang, Shicheng & Xing, Huilin & Zou, Yushi, 2022. "CO2–brine–rock interactions altering the mineralogical, physical, and mechanical properties of carbonate-rich shale oil reservoirs," Energy, Elsevier, vol. 256(C).
    7. Lu, Yiyu & Chen, Xiayu & Tang, Jiren & Li, Honglian & Zhou, Lei & Han, Shuaibin & Ge, Zhaolong & Xia, Binwei & Shen, Huajian & Zhang, Jing, 2019. "Relationship between pore structure and mechanical properties of shale on supercritical carbon dioxide saturation," Energy, Elsevier, vol. 172(C), pages 270-285.
    8. Yin, Hong & Zhou, Junping & Xian, Xuefu & Jiang, Yongdong & Lu, Zhaohui & Tan, Jingqiang & Liu, Guojun, 2017. "Experimental study of the effects of sub- and super-critical CO2 saturation on the mechanical characteristics of organic-rich shales," Energy, Elsevier, vol. 132(C), pages 84-95.
    9. Chen, Kang & Liu, Xianfeng & Nie, Baisheng & Zhang, Chengpeng & Song, Dazhao & Wang, Longkang & Yang, Tao, 2022. "Mineral dissolution and pore alteration of coal induced by interactions with supercritical CO2," Energy, Elsevier, vol. 248(C).
    10. Feng, Gan & Kang, Yong & Sun, Ze-dong & Wang, Xiao-chuan & Hu, Yao-qing, 2019. "Effects of supercritical CO2 adsorption on the mechanical characteristics and failure mechanisms of shale," Energy, Elsevier, vol. 173(C), pages 870-882.
    11. Lyu, Qiao & Long, Xinping & Ranjith, P.G. & Tan, Jingqiang & Kang, Yong & Wang, Zhanghu, 2018. "Experimental investigation on the mechanical properties of a low-clay shale with different adsorption times in sub-/super-critical CO2," Energy, Elsevier, vol. 147(C), pages 1288-1298.
    12. Jiang, Yongdong & Luo, Yahuang & Lu, Yiyu & Qin, Chao & Liu, Hui, 2016. "Effects of supercritical CO2 treatment time, pressure, and temperature on microstructure of shale," Energy, Elsevier, vol. 97(C), pages 173-181.
    13. Li, Zheng & Zhong, Dong-Liang & Lu, Yi-Yu & Yan, Jin & Zou, Zhen-Lin, 2017. "Preferential enclathration of CO2 into tetra-n-butyl phosphonium bromide semiclathrate hydrate in moderate operating conditions: Application for CO2 capture from shale gas," Applied Energy, Elsevier, vol. 199(C), pages 370-381.
    14. Yugang Cheng & Mengru Zeng & Zhaohui Lu & Xidong Du & Hong Yin & Liu Yang, 2020. "Effects of Supercritical CO 2 Treatment Temperatures on Mineral Composition, Pore Structure and Functional Groups of Shale: Implications for CO 2 Sequestration," Sustainability, MDPI, vol. 12(9), pages 1-22, May.
    15. Choi, Chae-Soon & Kim, Jineon & Song, Jae-Joon, 2021. "Analysis of shale property changes after geochemical interaction under CO2 sequestration conditions," Energy, Elsevier, vol. 214(C).
    16. Stian Rørheim & Mohammad Hossain Bhuiyan & Andreas Bauer & Pierre Rolf Cerasi, 2021. "On the Effect of CO 2 on Seismic and Ultrasonic Properties: A Novel Shale Experiment," Energies, MDPI, vol. 14(16), pages 1-20, August.
    17. Chengkai Fan & Qi Li & Jianli Ma & Duoxing Yang, 2019. "Fiber Bragg grating‐based experimental and numerical investigations of CO2 migration front in saturated sandstone under subcritical and supercritical conditions," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 9(1), pages 106-124, February.
    18. Yi Hu & Feng Liu & Yuqiang Hu & Yong Kang & Hao Chen & Jiawei Liu, 2019. "Propagation Characteristics of Supercritical Carbon Dioxide Induced Fractures under True Tri-Axial Stresses," Energies, MDPI, vol. 12(22), pages 1-13, November.
    19. Yang, Xianyu & Cai, Jihua & Jiang, Guosheng & Zhang, Yungen & Shi, Yanping & Chen, Shuya & Yue, Ye & Wei, Zhaohui & Yin, Dezhan & Li, Hua, 2022. "Modeling of nanoparticle fluid microscopic plugging effect on horizontal and vertical wellbore of shale gas," Energy, Elsevier, vol. 239(PB).
    20. Guo, Yide & Huang, Linqi & Li, Xibing, 2023. "Experimental investigation of the tensile behavior and acoustic emission characteristics of anisotropic shale under geothermal environment," Energy, Elsevier, vol. 263(PD).

    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:15:y:2022:i:22:p:8354-:d:967098. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.