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Finite Element Simulation of Stoneley Wave Propagation in Fracture Zones in Wells

Author

Listed:
  • Xinghua Qi

    (College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China
    School of Mining Engineering and Geology, Xinjiang Institute of Engineering, Urumqi 830023, China)

  • Yuxuan Wei

    (School of Mining Engineering and Geology, Xinjiang Institute of Engineering, Urumqi 830023, China)

  • Shimao Wang

    (School of Mining Engineering and Geology, Xinjiang Institute of Engineering, Urumqi 830023, China)

  • Zhuwen Wang

    (College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China)

Abstract

The formation and development of fractures increase reservoir heterogeneity and improve reservoir performance. Therefore, it is of great research value to accurately identify the development of fractures. In this paper, two- and three-dimensional models are constructed based on the finite element method and compared with the real axis integration method. The influence of different geometric parameters on the Stoneley wave amplitude is studied to assess the propagation of Stoneley waves in the fracture zone in the well. The results show a significant positive correlation between the width and number of fractures and the attenuation coefficient of Stoneley waves. The fracture angle has a negative correlation with the attenuation coefficient and lesser impact on Stoneley waves. In addition, Stoneley waves are less sensitive to changes in fracture location, while the sensitivity to fracture spacing is significant in the range of 50 cm to 75 cm. The main propagation depth of Stoneley waves occurs 20 cm from the wall of the well. Quantitative analyses of the fracture width, number, location, spacing, depth, and angle are conducted to determine the influence of the fracture parameters on the Stoneley wave attenuation coefficient, clarify Stoneley wave propagation in wells, and provide a theoretical basis for the accurate evaluation of fractures.

Suggested Citation

  • Xinghua Qi & Yuxuan Wei & Shimao Wang & Zhuwen Wang, 2024. "Finite Element Simulation of Stoneley Wave Propagation in Fracture Zones in Wells," Mathematics, MDPI, vol. 12(22), pages 1-16, November.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:22:p:3511-:d:1517839
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