IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i6p1498-d335528.html
   My bibliography  Save this article

Transient Flow of a Horizontal Well with Multiple Fracture Wings in Coalbed Methane Reservoirs

Author

Listed:
  • Qing Tian

    (School of Petrochemical and Energy, Zhejiang Ocean University, Zhoushan 316022, China)

  • Yudong Cui

    (School of Energy Resources, China University of Geosciences, Beijing 100083, China)

  • Wanjing Luo

    (School of Energy Resources, China University of Geosciences, Beijing 100083, China)

  • Pengcheng Liu

    (School of Energy Resources, China University of Geosciences, Beijing 100083, China)

  • Bo Ning

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

Abstract

Horizontal wells with multi-stage fractures have been widely used to improve coalbed methane (CBM) production from coalbed methane reservoirs. The main focus of this work is to establish a new semi-analytical method in the Laplace domain and investigate the transient pressure behavior in coalbed methane reservoirs. With the new semi-analytical method, flow regimes of a multi-fractured horizontal well in coalbed methane reservoirs were identified. In addition, the sensitivities of fracture conductivity, diffusion model, storability ratio, inter-porosity flow coefficient, adsorption index, fracture spacing, fracture asymmetry, non-planar angle, and wellbore storage were studied. Results indicate that six characteristic flow regimes can be identified for multi-fractured horizontal wells in coalbed methane reservoirs, which are bilinear flow, first linear flow, desorption-diffusion flow, first pseudo-radial flow, second linear flow, and second pseudo-radial flow. Furthermore, the sensitivity analysis shows that the early flow is mainly determined by the fracture conductivity, the asymmetry factor, the non-planar angle, and the wellbore storage; while the desorption-diffusion flow regime is mainly influenced by the diffusion model, the storability ratio, the inter-porosity flow coefficient, the adsorption index, and the fracture spacing. Our work can provide a deep insight into the fluid flow mechanism of multi-fractured horizontal wells in coalbed methane reservoirs.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1498-:d:335528
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/6/1498/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/6/1498/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Guoqiang Xing & Shuhong Wu & Jiahang Wang & Mingxian Wang & Baohua Wang & Jinjian Cao, 2019. "Pressure Transient Performance for a Horizontal Well Intercepted by Multiple Reorientation Fractures in a Tight Reservoir," Energies, MDPI, vol. 12(22), pages 1-23, November.
    2. 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.
    3. Mingxian Wang & Guoqiang Xing & Zifei Fan & Wenqi Zhao & Lun Zhao & Heng Song, 2018. "A Novel Model Incorporating Geomechanics for a Horizontal Well in a Naturally Fractured Reservoir," Energies, MDPI, vol. 11(10), pages 1-28, September.
    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. Suyang Zhu & Alireza Salmachi, 2021. "Flowing Material Balance and Rate-Transient Analysis of Horizontal Wells in Under-Saturated Coal Seam Gas Reservoirs: A Case Study from the Qinshui Basin, China," Energies, MDPI, vol. 14(16), pages 1-24, August.

    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. 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.
    2. Reza Rezaee, 2022. "Editorial on Special Issues of Development of Unconventional Reservoirs," Energies, MDPI, vol. 15(7), pages 1-9, April.
    3. Xiangji Dou & Sujin Hong & Zhen Tao & Jiahao Lu & Guoqiang Xing, 2022. "Transient Pressure and Rate Behavior of a Vertically Refractured Well in a Shale Gas Reservoir," Energies, MDPI, vol. 15(12), pages 1-20, June.

    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:13:y:2020:i:6:p:1498-:d:335528. 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.