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During the period of the middle and high water cut stage, it is the top priority of reservoir development management to apply geologic modeling and reservoir simulation for reservoir management, characterize and summarize the distribution law of remaining oil, and based on this, formulate the adjustment projects, measure and Injection and production allocation cases, so as to improve reservoir recovery efficiency. There are the following developing problems in a reservoir area of Shengli Oilfield: the connectivity relationship between injection wells and production wells is difficult to define and response between injection wells and production wells is not obvious; low injector-producer connection factor result in large difference of reservoir plane pressure drop. There are some areas where are no wells control and imperfect well patterns, lead to loss reserves; some production wells were flooded seriously lead to watercut of reservoir increases rapidly. It is urgent to clarify the distribution law of remaining oil and find the potential of adjustment measures. At present, in this area, the wells’ average oil production rate is 11t/d, average water cut is 86.9%, the recovery percent is 22%. Reservoir productivity decreases greatly, water cut rise rate is high, and comprehensive decline rate is large. In this study, a fine geological model was established, with a total of 953,700 grids. According to the development experience and field realization, the reservoir simulation model is established by making full use of existing static and dynamic data. The model accurately describes the reservoir dynamic characteristics such as reservoir pressure and remaining oil 3D distribution. By using this model, the remaining oil distribution region is found out, the distribution law of remaining oil was analyzed and summarized, and the corresponding prediction cases was put forwarded. Finally, the prediction case that include adjustment wells and new wells was selected. According to the predicted results, after the implementation of this case, the oil recovery rate will be increased by 0.31%, the recovery rate will be increased by 5.1%, and the development effect will be improved.

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Study on Reservoir Comprehensive Adjustment Cases by the Integration of Geological Modeling and Reservoir Simulation

  • 会议论文

  • 发表日期：

    2025年

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  • Bo Lin,
  • Zhi-wei Wang,
  • You-jie Wang,
  • Bin Yang,
  • Ming Wang,
  • Zai-zhen Zhang,
  • Zi-chao Ma,
  • Song Zhang

摘要

During the period of the middle and high water cut stage, it is the top priority of reservoir development management to apply geologic modeling and reservoir simulation for reservoir management, characterize and summarize the distribution law of remaining oil, and based on this, formulate the adjustment projects, measure and Injection and production allocation cases, so as to improve reservoir recovery efficiency. There are the following developing problems in a reservoir area of Shengli Oilfield: the connectivity relationship between injection wells and production wells is difficult to define and response between injection wells and production wells is not obvious; low injector-producer connection factor result in large difference of reservoir plane pressure drop. There are some areas where are no wells control and imperfect well patterns, lead to loss reserves; some production wells were flooded seriously lead to watercut of reservoir increases rapidly. It is urgent to clarify the distribution law of remaining oil and find the potential of adjustment measures. At present, in this area, the wells’ average oil production rate is 11t/d, average water cut is 86.9%, the recovery percent is 22%. Reservoir productivity decreases greatly, water cut rise rate is high, and comprehensive decline rate is large. In this study, a fine geological model was established, with a total of 953,700 grids. According to the development experience and field realization, the reservoir simulation model is established by making full use of existing static and dynamic data. The model accurately describes the reservoir dynamic characteristics such as reservoir pressure and remaining oil 3D distribution. By using this model, the remaining oil distribution region is found out, the distribution law of remaining oil was analyzed and summarized, and the corresponding prediction cases was put forwarded. Finally, the prediction case that include adjustment wells and new wells was selected. According to the predicted results, after the implementation of this case, the oil recovery rate will be increased by 0.31%, the recovery rate will be increased by 5.1%, and the development effect will be improved.