Kirillovsky oil field of Low-Timan formations illustrate experience of 3D geological modeling of terrigenous Devonian beds
The paper describes application of simplified approach to 3D models development. Facies modeling of sandy objects separately for each facies zone (delta bay, delta flow channel; fan channel and flood flow spit) was performed by means of "SedSeis" tool. Vertical characteristics and integrated histograms of porosity factor (Kp) normal distribution were developed and analyzed to set the algorithm of stochastics. The results of interpretation of 3D seismic survey data presented in the form of prognostic maps of porosity and reliability of their forecasts (probability maps) were also used as initial data. To evaluate the results obtained, balance sheet oil reserves were calculated separately for each of facial types considered in this research.