Method for determining injection-production ratio of different oil layers in layered oilfield

Abstract

The present disclosure relates to a layered system development oilfield different oil layer group injection production ratio determination method, specifically by introducing different oil layer group plane splitting coefficients of oil and water wells and different oil layer group longitudinal splitting coefficients based on dynamic monitoring data, the injection production ratio calculation accuracy can be improved by more accurately reflecting the injection water development effect of each oil layer group, using the method, the injection water development effect of each oil layer group can be more accurately evaluated by calculating the injection production ratio of different oil layer groups, a scientific basis is provided for optimizing the injection water strategy, more accurate guidance is provided for oilfield development, and thus the development efficiency and crude oil recovery of the oilfield are improved.

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