IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i12p2449-d242829.html
   My bibliography  Save this article

Pseudo-Steady-State Parameters for a Well Penetrated by a Fracture with an Azimuth Angle in an Anisotropic Reservoir

Author

Listed:
  • Guoqiang Xing

    (Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China
    State Key Laboratory of Enhanced Oil Recovery, Ministry of Science and Technology, Beijing 100083, China)

  • Mingxian Wang

    (Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China)

  • Shuhong Wu

    (Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China
    State Key Laboratory of Enhanced Oil Recovery, Ministry of Science and Technology, Beijing 100083, China)

  • Hua Li

    (Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China
    State Key Laboratory of Enhanced Oil Recovery, Ministry of Science and Technology, Beijing 100083, China)

  • Jiangyan Dong

    (Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China
    State Key Laboratory of Enhanced Oil Recovery, Ministry of Science and Technology, Beijing 100083, China)

  • Wenqi Zhao

    (Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China)

Abstract

Many oil wells in closed reservoirs continue to produce in the pseudo-steady-state flow regime for a long time. The principal objective of this work is to investigate the characteristics of two key pseudo-steady-state parameters—pseudo-steady-state constant ( b Dpss ) and pseudo-skin factor (S)—for a well penetrated by a fracture with an azimuth angle ( θ ) in an anisotropic reservoir. Firstly, a general analytical pressure solution for a finite-conductivity fracture with or without an azimuth angle in an anisotropic rectangular reservoir was developed by using the point-source function and spatial integral method, and two typical cases were employed to verify this solution. Secondly, with the asymptotic analysis method, the expressions of pseudo-steady-state constant and pseudo-skin factor were obtained on the basis of their definitions, and the effects of permeability anisotropy, fracture azimuth angle, fracture conductivity and reservoir shape on them were discussed in detail. Results show that all the b Dpss - θ and S- θ curves are symmetric around the vertical line, θ = 90° and form a hump or groove shape. The optimized fracture direction in an anisotropic reservoir is perpendicular to the principal permeability axis. Furthermore, a new formula to calculate pseudo-skin factor was successfully proposed based on these two parameters’ relationship. Finally, as an application of pseudo-steady-state constant, a set of Blasingame format rate decline curves for the proposed model were established.

Suggested Citation

  • Guoqiang Xing & Mingxian Wang & Shuhong Wu & Hua Li & Jiangyan Dong & Wenqi Zhao, 2019. "Pseudo-Steady-State Parameters for a Well Penetrated by a Fracture with an Azimuth Angle in an Anisotropic Reservoir," Energies, MDPI, vol. 12(12), pages 1-27, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:12:p:2449-:d:242829
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/12/2449/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/12/12/2449/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Mingxian Wang & Zifei Fan & Guoqiang Xing & Wenqi Zhao & Heng Song & Penghui Su, 2018. "Rate Decline Analysis for Modeling Volume Fractured Well Production in Naturally Fractured Reservoirs," Energies, MDPI, vol. 11(1), pages 1-21, January.
    Full references (including those not matched with items on IDEAS)

    Citations

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


    Cited by:

    1. Qing Tian & Yudong Cui & Wanjing Luo & Pengcheng Liu & Bo Ning, 2020. "Transient Flow of a Horizontal Well with Multiple Fracture Wings in Coalbed Methane Reservoirs," Energies, MDPI, vol. 13(6), pages 1-20, March.
    2. Mingxian Wang & Xiangji Dou & Ruiqing Ming & Weiqiang Li & Wenqi Zhao & Chengqian Tan, 2021. "Semi-Analytical Rate Decline Solutions for a Refractured Horizontal Well Intercepted by Multiple Reorientation Fractures with Fracture Face Damage in an Anisotropic Tight Reservoir," Energies, MDPI, vol. 14(22), pages 1-28, November.

    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. Yu Huang & Mingfeng Ma & Xin Wang & Xiaoping Li, 2022. "A General Model for Analyzing the Unsteady Pressure Performance of Composite Gas Reservoirs," Energies, MDPI, vol. 15(22), pages 1-15, November.
    2. Youwei He & Shiqing Cheng & Zhenhua Rui & Jiazheng Qin & Liang Fu & Jianguo Shi & Yang Wang & Dingyi Li & Shirish Patil & Haiyang Yu & Jun Lu, 2018. "An Improved Rate-Transient Analysis Model of Multi-Fractured Horizontal Wells with Non-Uniform Hydraulic Fracture Properties," Energies, MDPI, vol. 11(2), pages 1-17, February.
    3. Bing Sun & Wenyang Shi & Rui Zhang & Shiqing Cheng & Chengwei Zhang & Shiying Di & Nan Cui, 2020. "Transient Behavior of Vertical Commingled Well in Vertical Non-Uniform Boundary Radii Reservoir," Energies, MDPI, vol. 13(9), pages 1-13, May.
    4. Honghua Tao & Liehui Zhang & Qiguo Liu & Qi Deng & Man Luo & Yulong Zhao, 2018. "An Analytical Flow Model for Heterogeneous Multi-Fractured Systems in Shale Gas Reservoirs," Energies, MDPI, vol. 11(12), pages 1-19, December.

    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:12:p:2449-:d:242829. 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.