Fracture-width adjustable type inner visible three-dimensional fracture permeating device

Abstract

The invention provides a fracture-width adjustable type inner visible three-dimensional fracture permeating device. The device comprises a permeating instrument, an air-liquid supplying control systemand a data acquiring analyzing system, wherein the permeating instrument mainly comprises an upper cover steel plate, a silica gel plate, toughened glass plates, cellophane which is attached to a 3Dprinted coarse fracture surface, and a lower coiled steel plate; a water guide channel is formed between the two toughened glass plates to which the cellophanes are attached, and the opening degree ofthe water guide channel is adjusted through a feeler gauge; the fiver parts of the permeating instrument are connected and sealed through high-strength bolts; an electric pressure testing pump and ahigh-pressure air pipe are used for supplying pressure to an air-liquid supplying part; the fluid pressure is adjusted by a control part through a valve; permeating pipelines are connected through oxygen rubber tubes, and each connecting part is sealed through a combination gasket; the data acquiring analyzing part comprises a pressure sensor, a flow meter and a paper-free recorder; and data are transmitted to the paper-free recorder through the pressure sensor and the flow meter, and the data are acquired and analyzed through a computer.

Description

technical field [0001] The invention relates to the field of an internally visible three-dimensional fracture penetration device with adjustable gap width. Background technique [0002] The existing two-dimensional and three-dimensional fracture seepage devices have certain shortcomings and limitations, mainly in the following aspects: First, the two-dimensional fracture seepage device can only simulate the fracture surface with a flat and smooth surface and low friction, but in actual engineering applications The fracture surface is rough, and it cannot be completely regarded as a two-dimensional smooth plane, so the two-dimensional fracture seepage device cannot truly simulate the flow behavior of the mold fluid on the fracture surface; the second is that the flat structure of the three-dimensional fracture seepage device mostly uses stone slabs to truly simulate the roughness The fracture surface of the material, this material cannot be visualized, the operation is inconv...

AI Technical Summary

Problems solved by technology

[0002] The existing two-dimensional and three-dimensional fracture seepage devices have certain shortcomings and limitations, mainly in the following aspects: first, the two-dimensional fracture seepage device can only simulate the fracture surface with a flat and smooth surface and low friction, but in actual engineering applications The fracture surface is rough, and it cannot be completely regarded as a two-dimensional smooth plane, so the two-dimensional fracture seepage device cannot truly simulate the flow behavior of the mold fluid on the fracture surface; the second is that the flat structure of the three-dimensional fracture seepage device mostly uses stone slabs to truly simulate the roughness The fracture surface of the material, this material cannot be visualized, the operation is inconvenient, and the cost is high; the third is that for ordinary two-dimensional or three-dimensional fracture devices, the fluid directly enters the permeable fracture after passing through the liquid inlet. During the experiment, the fluid cannot evenly and completely cover the entire fracture, resulting in inaccurate pressure data testing and inability to accurately measure the permeability; fourth, for ordinary two-dimensional or three-dimensional fracture seepage devices, it is difficult to process and manufacture test samples that meet the requirements. Taken, the opening of the sample crack is difficult to control

Images