This article is devoted to the probability maps have been constructed for predicting the zones of residual oil reserves using the example of deposits in Shaim region. The refinement of the previously presented algorithm [4] has been made, which helps with a fairly high degree of probability to quickly localize the residual oil reserves based on 2D modeling. In the process of work, the influence of many geological and technological parameters on the final probability map was established, the influence of the observation zone on the value of the correlation coefficient of the map of residual mobile oil reserves with the map of current mobile oil reserves based on geological and hydrodynamic modeling was established.
In this paper, we consider the development of a technique for constructing probability maps to predict areas of residual oil reserves using the example of the Lovinskoye deposit.
Summary of the technique: Determination of factors that are theoretically interrelated with the probability of the presence of areas of residual oil reserves.Identifying the most significant factors from the selected set.Considering the factor of oil reserve recovery.Construction of probability maps for the presence of areas of residual oil reserves based on the research results.Practical application of the obtained probability maps.
The method allowed us to estimate in a short time the reserve recovery in the field and determine the areas of residual oil reserves and showed high convergence with maps of current mobile reserves based on the results of geological and hydrodynamic simulation.
Testing of the obtained technique is planned at other deposits of TPE «Urayneftegaz».
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