The paper presents a new method for acoustic monitoring modeling of a layered-block elastic medium with several inclusions of various physical-mechanical and phase hierarchical structures. An iterative process for solving the direct problem is developed for the case of three hierarchical inclusions of l, m, and s ranks based on 2D integral and integral-differential equations. The degree of hierarchy of inclusions is determined by the values of their ranks, which can be different for each inclusion. Inclusions are located in different layers above each other: the upper is abnormally strained, the middle one is fluid-saturated and the lower one is abnormally dense. The degree of filling with inclusions is different for each level. The results of the simulation can be used for fluid flow monitoring in oil deposits