Controllable fracture parameter physical model and manufacturing method thereof

Abstract

The invention provides a controllable fracture parameter physical model and a manufacturing method thereof. The controllable fracture parameter physical model comprises a plurality of fracture fillers and a plurality of background medium layers, wherein the fracture fillers are of wafer structures; the fracture fillers are embedded in the background medium layers in a dispersed manner; the background medium layers are of plane structures; and the background medium layers embedded with the fracture fillers are arranged in an overlapped manner so as to form the physical model. According to the physical model, the fracture fillers are embedded in each layer of background medium layer uniformly, and the background medium layers embedded with the fracture fillers are arranged in an overlapped manner so as to form the physical model. The physical model is designed according to a Hudson fracture model theory, so that the geological stratification structure described in the Hudson fracture model theory can be well simulated, so as to lay a foundation for verifying the Hudson fracture model theory through the physical test.

Description

technical field [0001] The invention relates to the technical field of geological research, in particular to a controllable fracture parameter physical model and a manufacturing method thereof. Background technique [0002] In the actual underground medium, due to the different shapes and uneven distribution of fractures, there is no method to accurately calculate the elastic tensor of the fractured medium. The equivalent medium theory can simplify the analysis of seismic anisotropy caused by fractures, and is still the mainstream method for studying fractured media. Among them, the Hudson theoretical model is widely used. There are many assumptions in his theory. First, the scale of directional sparse fractures is much smaller than the wavelength of seismic waves. Secondly, the fractures are not connected, there is no fluid flow between the fractures, and the shape is a thin oblate spheroid. Finally, the physical modulus of substances such as gas or liquid contained in t...

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Problems solved by technology

[0008] However, at present, Hudson's theory is only a theoretical model research, and its accuracy and applicability have not been verified by actual physical models.

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