IDEAS home Printed from https://ideas.repec.org/a/wly/greenh/v9y2019i5p999-1009.html
   My bibliography  Save this article

Flow field characters near fracture entrance in supercritical carbon dioxide sand fracturing

Author

Listed:
  • Weiqiang Song
  • Junming Zhang
  • Chunguang Wang
  • Shaojie Chen
  • Zhongwei Chen

Abstract

To investigate the flow field near fracture entrance and promote the development of sand fracturing with carbon dioxide as the working fluid, numerical simulation of multiphase flow was conducted with a 3D geological model considering the compressibility of carbon dioxide. The flow field of carbon dioxide alone was firstly investigated to lay the foundation for the analysis of multiphase flow, and then comparative analysis was conducted on the flow field of both the injecting sand from the pipe and the annulus. The results show that jet fracture with carbon dioxide can achieve a 4.46 MPa pressure boost at the fracture tip compared to the annulus pressure, which theoretically validates the feasibility of the mentioned technology. Sand fracturing can achieve a higher pressure boost in the cavity, while it needs greater pump pressure at the surface. Injecting sand from the annulus could decrease the need for pump pressure by 6.62 MPa at the condition of injecting 25% carbon dioxide from the annulus simultaneously, while the pressure difference between the cavity tip and the annulus decreases as a result. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

Suggested Citation

  • Weiqiang Song & Junming Zhang & Chunguang Wang & Shaojie Chen & Zhongwei Chen, 2019. "Flow field characters near fracture entrance in supercritical carbon dioxide sand fracturing," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 9(5), pages 999-1009, October.
    • Handle: RePEc:wly:greenh:v:9:y:2019:i:5:p:999-1009
    DOI: 10.1002/ghg.1915
    as

    Download full text from publisher

    File URL: https://doi.org/10.1002/ghg.1915
    Download Restriction: no
    File URL: https://libkey.io/10.1002/ghg.1915?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    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:wly:greenh:v:9:y:2019:i:5:p:999-1009. 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: Wiley Content Delivery (email available below). General contact details of provider: https://doi.org/10.1002/(ISSN)2152-3878 .

    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.