Estimation of Relationships between velocity of P-wave and permeability by using usual method is difficult. In this study that is first research in Iranian oilfield we show that by grouping and sorting rocks into hydraulic units, we can establish relationships between velocity and permeability. We can determine the hydraulic units by using measured porosity and permeability values from core analysis. Correlation between velocity and permeability is significant within each hydraulic unit. In the first part of study we determine this relation and the correlation coefficient (R2) lies in the range 0.67–0.80. We know that the compaction and cementation history of sediment can have effects on porosity and permeability and velocity of P-wave. At this study we determine relation between permeability and velocity within specific case study and then by comparison to one wave theory (Biot model of wave) we demonstrate that the good match is between them. This relation can be used to predict permeability from velocity in well logs by zoning the data from training wells into hydraulic units.


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