Important step in the construction of a geological and hydrodynamic model is to set the correct properties of the formations and further adapt the model to the historical development data. Main source of information on the geological properties of reservoirs is well logging data. Paper describes the application of the method for post-interpretation processing of logging data, with the help of which the lateral anisotropy value of the field site is found. Brief discussion on the algorithm for adapting the hydrodynamic model to the parameters of the formation using one reference well is given. Feature of the logging data application to study the phenomenon of permeability anisotropy is that this type of research is widespread, has sufficient information content, and the geophysical system itself does not require the inclusion of specialized instruments. Based on geophysical study, a volumetric model of the properties for oil and gas bearing formation is constructed, from which the permeability distribution is used, whose gradient allows establishing the directions of improved and deteriorated filtration properties. As a result, during adaption of the model, it was possible to achieve a difference in reserves between the geological and hydrodynamic models of 2.4 %, which is an acceptable deviation for further calculations. It was found that the direction of improved filtration properties has a northeastern direction at an angle of 35°, and the value of lateral anisotropy is 2.2. Obtained results of lateral anisotropy, taking into account the data on values of vertical anisotropy, are included in the field model, where it is planned to further study the effect of permeability anisotropy on formation productivity.

The paper deals with the problem of determining permeability anisotropy required to build a field simulation model in context of available data. It is proposed to use results of microscopic studies of core data and their lithological characteristics by the example of a terrigenous reservoir of the Tomsk Region. The method of sample preparation and direct measurement of the anisotropy value are described. The importance of considering relationship between directions of improved filtration properties and natural cracks of rock samples is emphasized. The results make it possible to achieve an estimated permeability anisotropy based on field input data without major costs.

The paper deals with the problem of studying permeability anisotropy and ways of finding its value. As a rational way of solving the problem, it is proposed to use microscopic studies of lithological core features, results of tracer studies and post-interpretation studies of logging data together. These studies are the most frequently conducted and available during field development. Obtaining physical and flow characteristics of a reservoir using hydraulic flow units based on core and logging data is described. As a result, 8 units were selected, reflecting certain facies that make up the reservoir. According to results of tracer studies, the dominant flow direction of injected agents in the north-west direction at an angle of about 45 degrees has been established. The results can be appliedfurther in construction of reservoir model.