Hierarchical-extension discrete element simulation method

Abstract

The invention provides a hierarchical-extension discrete element simulation method. The method comprises the steps that based on formation rock mechanical properties and basement fault positions of areal formation, a discrete element numerical simulation formation is constructed, wherein the discrete element numerical simulation formation comprises a simulation formation, and the simulation formulation has a hierarchical-extension superposed deformation structure of an intermediate ductile layer; and the simulation formulation accurately simulates the rock mechanical properties of the real formation through adjustment of filling material properties, construction and / or structures. Through the hierarchical-extension discrete element simulation method, the model construction mode is simple,the simulation mode is easy to realize, and the simulation result has good accuracy.

Description

technical field [0001] The present invention relates to physical simulation technology, more specifically, relates to a discrete element simulation method of hierarchical stretching. Background technique [0002] Between the sedimentary formations of the two stages of rifts, there are ductile rock layers such as mudstone layers, ultra-high pressure shale layers, and gypsum rock layers, which will promote the formation of vertically different occurrence faults separated and superimposed with the intermediate tough rock layers as the interface, which is seen on the seismic section. The phenomenon that the upper and lower sets of extensional faults of different styles are separated by the middle ductile detachment layer can be called the effect of layered extension and superimposed deformation. [0003] Due to different geological conditions and changing states, they will affect the development style of faults. At present, building a model to simulate the actual geological con...

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Problems solved by technology

[0006] The present invention provides a layered stretching discrete element simulation method that overcomes the above problems or at least partially solves the above problems, so as to solve the problem that the simulation model is difficult to accurately reflect the actual geological conditions of rock mechanical properties, and the mismatch between theoretical analysis results and actual conditions high technical issues

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