Research on Accurate Identification Method for Water Flooding Channel in Low Permeability Fractured Reservoirs

In view of the problem that the existing identification methods of channeling channels are not suitable for low-permeability fractured reservoirs, through the study of channeling characteristics and dynamic performance laws of fractured reservoirs, the indicator evaluation system is established by comprehensively considering the pressure sensitivity effect, the connectivity between sand bodies at both injection and production ends, well permeability, fracture density and other indicators, and the fuzzy mathematical comprehensive analysis method is used to establish the discriminative model of channeling channels in fractured reservoirs, Realize effective discrimination of small layer level channeling channels. The on-site application shows that, compared with the results of tracer and profile testing, the identification method established in this article is basically consistent with the actual situation of the mine. A total of 10 channeling channels are identified, proving the accuracy of the proposed method and providing a basis for adjusting water control and oil stabilization measures in low permeability fractured reservoirs.