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CN-122024564-A - Quantitative simulation experiment device for complex fracture zone of extension domain

CN122024564ACN 122024564 ACN122024564 ACN 122024564ACN-122024564-A

Abstract

The invention discloses a complex fracture zone quantitative simulation experiment device in an extension domain, which belongs to the technical field of physical simulation of geological structures and comprises an alloy steel plate deformed left in a pressing structure and an alloy steel plate deformed right in the pressing structure, wherein the alloy steel plate deformed left in the pressing structure and the alloy steel plate deformed right in the pressing structure are connected through a fixing pin penetrating through the alloy steel plate deformed left in the pressing structure and the alloy steel plate deformed right in the pressing structure, and a front auxiliary volume expansion movable baffle and a rear auxiliary volume expansion movable baffle. According to the invention, different stress directions are simulated by moving the motor, multi-stage structure superposition and transformation are simulated by replacing or combining the deformation modules, the movable baffle is used for adapting to material volume expansion, and the deformation process can be observed through toughened glass.

Inventors

  • LAO HAIGANG
  • WEI YIMING
  • WANG PENGTAO

Assignees

  • 华北理工大学

Dates

Publication Date
20260512
Application Date
20260401

Claims (6)

  1. 1. The utility model provides a complicated fracture area quantitative simulation experiment device of extension domain which characterized in that includes: the alloy steel plates (1) deformed left and right in the pressing structure are connected through fixing pins (9); The front auxiliary volume expansion movable baffle (3) and the rear auxiliary volume expansion movable baffle (4) are connected with the alloy steel plate (1) which is deformed left by the pressing structure through flat sliding grooves; An upper main force motor and a lower auxiliary motor, wherein the rear parts of the upper main force motor and the lower auxiliary motor are respectively connected with the left deformed alloy steel plate (1) of the pressing structure through parallel slidable grooves (16); the upper front deformation module (6-1) and the upper rear deformation module (6-2) are connected with the left deformed alloy steel plate (1) of the pressing structure through arc clamping grooves; The lower front deformation module (8-1) and the lower rear deformation module (8-2) are connected with the left deformed alloy steel plate (1) of the pressing structure through arc clamping grooves which are obliquely parallel to each other.
  2. 2. The device for quantitative simulation of complex fracture zones in extended domains according to claim 1, characterized in that the number of upper main force motors is 3, one front part is connected with the upper front deformation module (6-1) through a parallel groove (17), and the other two front parts are connected with the upper rear deformation module (6-2) through a parallel groove (17).
  3. 3. The device for quantitatively simulating the complex fracture zone of the extension domain according to claim 1, wherein a first through hole (11) is arranged in the plain end sliding groove, a second through hole (15) is arranged in the arc-shaped clamping groove, the distance between the adjacent through holes is 5cm, and the front auxiliary volume expansion movable baffle (3), the rear auxiliary volume expansion movable baffle (4), the upper front deformation module (6-1), the upper rear deformation module (6-2), the lower front deformation module (8-1) and the lower rear deformation module (8-2) are fixed by fixing pins after moving by an integral multiple of 5cm in the simulation experiment process.
  4. 4. The quantitative simulation experiment device for the complex fracture zone in the extension domain according to claim 1 is characterized in that parallel inner grooves (18) are formed in an alloy steel plate (1) deformed in the left direction of a pressing structure and an alloy steel plate (2) deformed in the right direction of the pressing structure, and toughened glass with an explosion-proof function is inlaid in the parallel inner grooves.
  5. 5. The device for quantitative simulation experiment of complex fracture zone in extension domain according to claim 1, wherein the upper front deformation module (6-1), the upper rear deformation module (6-2), the lower front deformation module (8-1) and the lower rear deformation module (8-2) are independent deformation modules or composite deformation modules formed by combining a plurality of independent deformation modules with trapezoid clamping grooves.
  6. 6. The stretching-domain complex fracture zone quantitative simulation experiment device according to claim 1, wherein a drawing movable baffle is arranged in the front auxiliary volume expansion movable baffle (3) and the rear auxiliary volume expansion movable baffle (4), and the drawing movable baffle is in embedded groove contact with the front auxiliary volume expansion movable baffle (3) and the rear auxiliary volume expansion movable baffle (4).

Description

Quantitative simulation experiment device for complex fracture zone of extension domain Technical Field The invention relates to the technical field of physical simulation of geological structures, in particular to a quantitative simulation experiment device for a complex fracture zone in an extension domain. Background The physical simulation experiment is a necessary research method for reproducing the deformation process of the structure, and is also a key means for carrying out feasibility verification on the new concept of the structure and the reinterpretation of field phenomena. The physical simulation evolution history of the structure is observed, the range related to the physical simulation of the structure is gradually extended to the superposition evolution of the structure from the simulation of three key structure types of early fracture, crack and fold, and the comprehensive research and discussion of the deformation of the structure are realized. From the development direction of the modern construction simulation experiments, the early simulation with the aim of focusing on the macroscopic construction rule is gradually turned to be directed to simulating the mineral enrichment requirement. Therefore, on the basis of complex structural deformation superposition simulation, simulation experiments of later mineral enrichment superposition are required. Thus Shi Yuling et al (2020) have proposed single fracture surface simulation and hydrocarbon injection modeling experiments with similar layers of sand and mud as the base material and similar mechanical parameters as the core. However, for a fracture basin with long-term boundary fracture as a constraint and multiple-stage structural motion constraint, the fracture zone is often mainly in a 'binary' or 'ternary' structure and oil gas transmission is carried out, and obviously, the existing 'unitary' type simulation experiment device cannot meet the experimental requirements of complex fracture zone formation and evolution of the simulation 'ternary' structure. Disclosure of Invention The invention provides an experimental device for simulating quantitative simulation of a complex fracture zone in an extension domain, and aims to realize quantitative simulation of the complex fracture zone under multi-stage structural movement deformation according to changes and combination modes among actual fracture zone geologic model adjustment modules in an improved experimental module near a stress point. The invention relates to a quantitative simulation experiment device for a complex fracture zone of an extension domain, which comprises the following components: The alloy steel plates deformed left and right in the pressing structure are connected through fixing pins; the front auxiliary volume expansion movable baffle and the rear auxiliary volume expansion movable baffle are connected with the alloy steel plate deformed left by the pressing structure through flat-mouth sliding grooves; the rear parts of the upper main force motor and the lower auxiliary motor are respectively connected with the alloy steel plate deformed left by the pressing structure through parallel slidable grooves; the upper front deformation module and the upper rear deformation module are connected with the left deformed alloy steel plate of the pressing structure through arc clamping grooves; The flat-mouth sliding groove is internally provided with a first through hole, the arc-shaped clamping groove is internally provided with a second through hole, the distance between adjacent through holes is 5cm, and the front auxiliary volume expansion movable baffle, the rear auxiliary volume expansion movable baffle, the upper front deformation module, the upper rear deformation module, the lower front deformation module and the lower rear deformation module are conveniently fixed by using fixing pins after moving for 5cm for integer times in the simulation experiment process. The upper main force motors are arranged in number of 3, one front part is connected with the upper front deformation module through a parallel groove, and the other two front parts are connected with the upper rear deformation module through parallel grooves. Parallel inner grooves are formed in the left deformed alloy steel plate and the right deformed alloy steel plate of the pressing structure, and toughened glass with an explosion-proof function is inlaid in the parallel inner grooves. The upper front deformation module, the upper rear deformation module, the lower front deformation module and the lower rear deformation module are respectively independent deformation modules or composite deformation modules formed by combining a plurality of independent deformation modules with trapezoidal clamping grooves. The front auxiliary volume expansion movable baffle and the rear auxiliary volume expansion movable baffle are internally provided with drawing movable baffles, and the drawing movable baffles are in c