Scholarlink

In the development process of ASP flooding, the change of injection-production capacity is one of the key factors affecting the final development effect. In order to further improve the development effect, Study on the dynamic balance of injection-production capacity and production capacity in the whole process and its influence on the stage recovery degree is desiderated. By further studying the production data and dynamic data of pressure system in the whole development process of ASP flooding representative area, The calculation methods of block water absorption index and liquid production index based on modified HALL curve calculation are established, Clarify the physical significance of the reservoir indicated by this method, deduce the dynamic balance relationship between the injection end and the production end of the block, and further explore the relationship between the dynamic injection-production balance and the staged recovery degree. The results show that the ratio of the decline of liquid production index to the decline of water absorption index is positively correlated with the recovery degree, and the recovery degree is the highest when the decline of liquid production index is about 1.5 times greater than that of water absorption index. This method is applied to guide the adjustment of main slug measures in NQX composite flooding, Results show that the rapid recovery of water cut in the late stage of the main slug in this block is mainly due to the decrease of liquid production index due to insufficient liquid production capacity, and the injection-production dynamic imbalance. The water cut continues to decrease after measures are taken to lift the liquid at the production end to ensure the dynamic balance of injection and production. This method has tracking and guiding significance for the evaluation of dynamic balance between injection capacity and recovery capacity in the process of ASP flooding development. At present, the research on the mechanism of compound flooding is divided into microscopic and macroscopic aspects. In microscopic aspect, the microscopic remaining oil production mechanism at the core scale is simulated by physical simulation experiments and other means. By adjusting ternary formula and optimizing surfactant concentration, the oil increasing effect is improved.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Dynamic Injection-Production Balance Evaluation and Development Effect Influence Based on Injection-Production Capacity Change Prediction

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Xue-Ying Su,
  • Ling-jun Meng,
  • Zhao-wei Hou,
  • Chun-lin Nie,
  • Shou-liang Lu,
  • Shi-chun Me

摘要

In the development process of ASP flooding, the change of injection-production capacity is one of the key factors affecting the final development effect. In order to further improve the development effect, Study on the dynamic balance of injection-production capacity and production capacity in the whole process and its influence on the stage recovery degree is desiderated. By further studying the production data and dynamic data of pressure system in the whole development process of ASP flooding representative area, The calculation methods of block water absorption index and liquid production index based on modified HALL curve calculation are established, Clarify the physical significance of the reservoir indicated by this method, deduce the dynamic balance relationship between the injection end and the production end of the block, and further explore the relationship between the dynamic injection-production balance and the staged recovery degree. The results show that the ratio of the decline of liquid production index to the decline of water absorption index is positively correlated with the recovery degree, and the recovery degree is the highest when the decline of liquid production index is about 1.5 times greater than that of water absorption index. This method is applied to guide the adjustment of main slug measures in NQX composite flooding, Results show that the rapid recovery of water cut in the late stage of the main slug in this block is mainly due to the decrease of liquid production index due to insufficient liquid production capacity, and the injection-production dynamic imbalance. The water cut continues to decrease after measures are taken to lift the liquid at the production end to ensure the dynamic balance of injection and production. This method has tracking and guiding significance for the evaluation of dynamic balance between injection capacity and recovery capacity in the process of ASP flooding development. At present, the research on the mechanism of compound flooding is divided into microscopic and macroscopic aspects. In microscopic aspect, the microscopic remaining oil production mechanism at the core scale is simulated by physical simulation experiments and other means. By adjusting ternary formula and optimizing surfactant concentration, the oil increasing effect is improved.