Physical simulation experimental device and experimental method for simulating multi-directional extrusion deformation sand box

Abstract

The invention relates to a sand box physical simulation experiment device and experiment method for simulating multi-direction extrusion deformation. The sand box physical simulation experiment devicefor simulating multi-direction extrusion deformation comprises a model mechanism, a driving mechanism, an image acquisition system and a computer control system, the driving mechanism is fixed on oneside of an experiment table bracket and provides power for a bottom plate to perform diving motion, and a rotating shaft is arranged on the other side of the experiment table; the model mechanism comprises the experiment table bracket, an experiment table, a sand box end coaming, a sand box side coaming, a sand scraping plate apparatus and a rotating disc. The driving mechanism is connected to the computer control system, and the rotating speed of a reel is controlled by the computer control system, and a sand box physical simulation experiment of two-dimensional or three-dimensional multi-stage displacement deformation field superposition with different migration speeds and different combination modes is carried out. The device and the method can realize the structure evolution process of simulating reactivation of compression pre-existing faults with different migration rates and different occurrences in a three-dimensional space without change of fault properties and inducing secondary fault formation.

Description

Technical field: [0001] The present invention relates to a sandbox physical simulation experimental device for the evolution of fracture activity in medium-pressure oil-gas-bearing basins in the field of structural geology and petroleum geology, and specifically relates to a device for simulating the extrusion caused by extrusion deformation of early pre-existing structures. The physical simulation experiment device and method of the multi-directional extrusion deformation sandbox in the late stage of tectonic superposition in which different properties of the displacement deformation field are reactivated. Background technique: [0002] Compressive structural deformation is the basic mode of crustal deformation, and compressive basin is one of the basic types of basins. Because compressional basins suffer from different degrees of compression, there are compression structures, which make oil and gas exploration in compression structure belts quite difficult. For compressiv...

AI Technical Summary

Problems solved by technology

However, there is no single sandbox physical simulation experimental device at home and abroad that can realize all simulation experiments on the early pre-existing compressive faults superimposed with different properties of displacement fields in the early subduction mode.

Images