一种胶体颗粒渐进堵塞引发介质渗透性衰减的模拟方法
By constructing a three-dimensional thin-section model of porous media based on real core slices and a fluid-solid coupling mathematical model, the progressive clogging process of colloidal particles in porous media is accurately simulated. This solves the problem of inaccurate simulation in existing technologies, realizes quantitative correlation between micro and macro levels, and provides technical support for clogging prevention and control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF MINING & TECH
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to accurately simulate the gradual clogging process of colloidal particles in porous media and the decay law of media permeability, thus failing to provide effective clogging prevention and control technology support for projects such as groundwater recharge and geothermal extraction.
A three-dimensional thin-section model of porous media based on real core slices was constructed. A fluid-solid coupling mathematical model was established using the fluid dynamics-discrete element coupling method to describe in detail the movement and deposition process of colloidal particles. The permeability evolution law was fitted by combining the modified KC mathematical model to realize the quantitative correlation between the micro-blocking process and the macro-permeability.
It accurately simulates the dynamic migration and clogging process of colloidal particles in pores, reveals the intrinsic mechanism of permeability decay, and provides scientific support for the design of clogging prevention and control schemes and parameter optimization. It is applicable to geotechnical engineering such as groundwater reinjection, geothermal extraction and contaminated site remediation.
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Figure CN122174591B_ABST