IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v17y2024i17p4254-d1463993.html
   My bibliography  Save this article

Research on Inter-Fracture Gas Flooding for Horizontal Wells in Changqing Yuan 284 Tight Oil Reservoir

Author

Listed:
  • Lingfang Tan

    (University of Chinese Academy of Sciences, Beijing 100049, China
    Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China
    Research Institute of Petroleum Exploration & Development, China National Petroleum Corporation, Beijing 100083, China)

  • Yi Yang

    (CNPC Engineering Technology R&D Company Limited, Beijing 102206, China)

  • Wei Xiong

    (Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China
    Research Institute of Petroleum Exploration & Development, China National Petroleum Corporation, Beijing 100083, China)

  • Rui Shen

    (Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China
    Research Institute of Petroleum Exploration & Development, China National Petroleum Corporation, Beijing 100083, China)

  • Yu Xiong

    (Petroleum Engineering School, Southwest Petroleum University, Chengdu 637001, China)

  • Yuanhang Qi

    (Petroleum Engineering School, Southwest Petroleum University, Chengdu 637001, China)

  • Zewei Sun

    (Petroleum Engineering School, Southwest Petroleum University, Chengdu 637001, China)

Abstract

In tight reservoir development, traditional enhanced oil recovery (EOR) methods are incapable of effectively improving oil recovery in tight reservoirs. Given this, inter-fracture flooding is proposed as a new EOR method, and physical model simulation and numerical simulation are performed for inter-fracture water flooding. Compared with inter-fracture water flooding, inter-fracture gas flooding has a higher application prospect. However, few studies on inter-fracture gas flooding have been reported, and its EOR mechanisms and performance are unclear. This paper used the geological model of the actual tight reservoir to carry out numerical simulations for two horizontal wells in the Changqing Yuan 284 block. The results showed that (1) inter-fracture gas flooding can effectively supplement formation energy and increase formation pressure; (2) inter-fracture gas flooding delivers simultaneous displacement, which can effectively increase the swept area in tight reservoirs; (3) injected CO 2 dissolves into the reservoir fluid, reduces fluid viscosity, and improves fluid flow through the reservoir; and (4) the recovery factor increment of the CO 2 injection is higher than those of natural gas injection and N 2 injection. The findings of this research provide references for the production and development of tight reservoirs.

Suggested Citation

  • Lingfang Tan & Yi Yang & Wei Xiong & Rui Shen & Yu Xiong & Yuanhang Qi & Zewei Sun, 2024. "Research on Inter-Fracture Gas Flooding for Horizontal Wells in Changqing Yuan 284 Tight Oil Reservoir," Energies, MDPI, vol. 17(17), pages 1-14, August.
  • Handle: RePEc:gam:jeners:v:17:y:2024:i:17:p:4254-:d:1463993
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/17/17/4254/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/17/17/4254/
    Download Restriction: no
    ---><---

    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:17:y:2024:i:17:p:4254-:d:1463993. 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.