The results of testing the proxy model of the reservoir for the optimization of waterflooding using the example of the Vyngapurskoye field

Abstract

The waterflooding process optimization is a possibility to increase oil recovery and reduce inefficient costs, which does not require workover activities. Various approaches have been used in the Company to reduce inefficient water injection and maintain of oil recovery rates for fields with a great number of wells. Results of testing developed tool for achieve the potential of basic production are presented in this paper. The main advantage of this tools compared with commercial simulators is possibility of rapid analysis of a large number of wells with further automated selection of optimal technological parameters. The functional of tools also include the selection of candidates for the bottom-hole treatment, isolation squeeze, geophysical study in well and well hydrodynamic studies. In order to test the instruments, experimental program had been carried at one of the sections of the BV81 formation at the Vyngapurovskoye field. Results of experimental program presented in the work. According to the results of the pilot survey, a large number of wells were analyzed, according to the results of which wells were allocated: with a recommendation for reducing injection due to high compensation (9 %); with inefficient injection of the working agent (40 %); with effective injection of the working agent, but requiring its reduction due to the possible influence of the aquifer (6 %); with a recommendation for increase injection due to low compensation (9 %); with an optimal mode of operation (24 %).