咸水储层多尺度反应输运过程的物理模型系统

By constructing a physical model system for multi-scale reaction and transport processes in saline reservoirs, high-precision three-dimensional reconstruction and multi-field coupled dynamic simulation of micron-scale pore structures were achieved. This solved the simulation problem of the influence of mineral dissolution at the pore scale in traditional methods, and improved the computational efficiency and safety of CO2 sequestration processes.

CN120688255BActive Publication Date: 2026-07-17QINGDAO UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QINGDAO UNIV OF TECH
Filing Date
2025-06-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional continuous medium models cannot capture the impact of dynamic structural evolution such as mineral dissolution at the pore scale on seepage capacity. Furthermore, direct simulation at the pore scale of millions of grids is extremely time-consuming. Traditional upscaling methods ignore non-equilibrium mass transfer mechanisms, leading to the accumulation of parameter transfer errors and making it impossible to accurately analyze complex pore networks and cross-scale parameter fragmentation.

Method used

A physical model system for multi-scale reaction and transport processes in saline reservoirs is constructed. A dual-module collaborative system of multi-scale information pore size mathematical model and numerical solution is adopted to achieve high-precision three-dimensional reconstruction of micron-level pore structure and multi-field coupled dynamic simulation. Combined with efficient parallel computing methods, seamless coupling and parameter transfer between micro and macro scales are achieved.

Benefits of technology

It achieves high-precision three-dimensional reconstruction and multi-field coupled dynamic simulation of micron-scale pore structures, overcomes the limitations of traditional methods, accurately analyzes the correlation between complex pore networks and cross-scale parameters, and improves the computational efficiency and safety assessment of CO2 storage processes.

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Abstract

本发明公开咸水储层多尺度反应输运过程的物理模型系统,包括物理建模模组和数值求解模组,物理建模模组用于通过微米级多场耦合建模,实现非平衡传质,为跨尺度参数传递提供物理基础,物理建模模组包括几何重构模块、多场耦合模块和多物理过程协同模块,数值求解模组用于实现孔隙尺度多场耦合模型的高效求解,孔隙尺度与达西尺度之间相互关联,数值求解模组包括初始化模块、迭代求解模块和多尺度参数生成模块;本发明通过构建孔隙尺寸建模与数值求解双模块协同系统,实现了微米级孔隙结构的高精度三维重构及多场耦合动态模拟,通过尺度升级实现将微观孔隙尺度上的流体输运机理与宏观达西尺度上的流体输运进行深度关联。
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