Visualization of reservoir fluid filtration characteristics distribution, as a method of oil field development management

Abstract

For monitoring of the zonal impact on the productive strata of oil fields in order to increase oil recovery, it is proposed to use a cartographic method for presenting the distribution of hydrodynamic indicators with the subsequent calculation of the corresponding information indicators. The cartographic method makes it possible to visualize the distribution of indicators characterizing the filtration of formation fluid in a productive formation at a certain time point. The algorithm for calculating information indicators used to conduct a comparative analysis of the hydrodynamic indicators distribution in the impact area for a certain time period allows diagnosing the evolution of the distribution of hydrodynamic indicators both at the all horizon of oilfield and for its individual zones before and after the planned impact. The proposed method, based on the relationship between the productivity of wells operated under interference, and the current geological and hydrodynamic of the reservoir state, can be recommended for assessing the effectiveness of the impact on the productive layers of oil fields. The implementation of the proposed method is shown on the example of the development data of the «Neft Dashları» and «Pirallahı» fields (Azerbaijan). The analysis of the obtained results showed that the impact on the formation, taking into account the assessment of the distribution of hydrodynamic and information indicators, contributes to the choice of a rational mode of stimulation on the prodactive strata. Keywords: reservoir; enhanced oil recovery; zonal impact; well productivity; diagnostics; filtration; monitoring; streamlines.