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Pressure Transient Performance for a Horizontal Well Intercepted by Multiple Reorientation Fractures in a Tight 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)

  • 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)

  • Jiahang Wang

    (Engineer Institute of SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China)

  • Mingxian Wang

    (Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China
    School of Earth Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China)

  • Baohua Wang

    (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)

  • Jinjian Cao

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

Abstract

A fractured horizontal well is an effective technology to obtain hydrocarbons from tight reservoirs. In this study, a new semi-analytical model for a horizontal well intercepted by multiple finite-conductivity reorientation fractures was developed in an anisotropic rectangular tight reservoir. Firstly, to establish the flow equation of the reorientation fracture, all reorientation fractures were discretized by combining the nodal analysis technique and the fracture-wing method. Secondly, through coupling the reservoir solution and reorientation fracture solution, a semi-analytical solution for multiple reorientation fractures along a horizontal well was derived in the Laplace domain, and its accuracy was also verified. Thirdly, typical flow regimes were identified on the transient-pressure curves. Finally, dimensionless pressure and pressure derivative curves were obtained to analyze the effect of key parameters on the flow behavior, including fracture angle, permeability anisotropy, fracture conductivity, fracture spacing, fracture number, and fracture configuration. Results show that, for an anisotropic rectangular tight reservoir, horizontal wells should be deployed parallel to the direction of principal permeability and fracture reorientation should be controlled to extend along the direction of minimum permeability. Meanwhile, the optimal fracture number should be considered for economic production and the fracture spacing should be optimized to reduce the flow interferences between reorientation fractures.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:22:p:4232-:d:284188
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    Citations

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    Cited by:

    1. Reza Rezaee, 2022. "Editorial on Special Issues of Development of Unconventional Reservoirs," Energies, MDPI, vol. 15(7), pages 1-9, April.
    2. 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.
    3. 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.
    4. 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.

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