Abstract

In the later stage of water flooding and subsequent water flooding, due to the long mining time, the proportion of oil production in the stage is relatively large. Therefore, the comprehensive adjustment in the later stage of polymer flooding plays an important role in the development of the whole polymer flooding. This paper analyzes the main contradictions in the late stage of polymer flooding in the second block of the western block of a certain area, finds corresponding solutions, further improves the development effect of block polymer flooding, and provides reference for the rational development of other blocks in the future.

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