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As an economical and practical method, microseismic ground monitoring technology plays a vital role in the safe production operation and risk control of reinjection wells. In order to evaluate the dynamic change law of the front edge position in the dominant direction of water body with the increase of cumulative reinjection water volume in the reinjection production process of reinjection wells, the surface microseismic monitoring technology is used to obtain the front edge position length data in the dominant direction of water body in several monitoring cycles. The mathematical regression analysis is used to study the relationship between the cumulative reinjection volume and the front edge position length in the dominant direction. The analysis shows that in the reinjection wells selected in the study, there is a significant linear positive correlation between the amount of reinjection and the length of the leading edge position, which makes it possible to predict the change of the leading edge position in the dominant direction of the water body. The research results provide important basis and guidance for the safe operation of reinjection wells.

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Prediction and Analysis of the Front Edge Position of Reinjection Water Based on Ground Microseismic Monitoring Technology

  • 会议论文

  • 发表日期：

    2025年

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  • Gang Yuan,
  • Xin Hu,
  • Jing Luo,
  • Jian Cao,
  • Li-Jun Ran

摘要

As an economical and practical method, microseismic ground monitoring technology plays a vital role in the safe production operation and risk control of reinjection wells. In order to evaluate the dynamic change law of the front edge position in the dominant direction of water body with the increase of cumulative reinjection water volume in the reinjection production process of reinjection wells, the surface microseismic monitoring technology is used to obtain the front edge position length data in the dominant direction of water body in several monitoring cycles. The mathematical regression analysis is used to study the relationship between the cumulative reinjection volume and the front edge position length in the dominant direction. The analysis shows that in the reinjection wells selected in the study, there is a significant linear positive correlation between the amount of reinjection and the length of the leading edge position, which makes it possible to predict the change of the leading edge position in the dominant direction of the water body. The research results provide important basis and guidance for the safe operation of reinjection wells.