Research of mechanisms for accounting of wells interaction when using various methods of mathematical modeling
To optimize the waterflooding system, an assessment of the degree of connectivity of injection and production wells is required. This connection is represented in the form of mutual influence coefficients, which, as a rule, characterize the proportion of injection into a fixed injection well per a fixed production well. The paper is devoted to the problem of the correctness of comparing the interaction coefficients based on the current streamlines with the interaction coefficients based on the CRM analytical model. Using synthetic hydrodynamic models as an example, it was demonstrated that an injection well affects not only the wells with which it is connected along current streamlines, but also other wells - by changing reservoir pressure. As a result, in case of non-stationary injection, the use of only those connections between the wells that correspond to the current streamlines leads to a decrease in the quality of CRM model tuning.