A device and method for determining oil-gas-water three-phase relative permeability based on microfluidics and image processing
By using microfluidic pore network chips and image processing technology, the problems of large sample consumption and long experimental cycle in the determination of relative permeability of oil, gas and water phases have been solved. Visualization and quantitative determination of three-phase flow at the pore throat scale have been realized, improving experimental efficiency and consistency of results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SOUTHWEST PETROLEUM UNIV
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to observe the three-phase flow process of oil, gas and water in real time at the pore throat scale, and the three-phase relative permeability measurement devices and methods have problems such as large sample consumption, long experimental cycle, high cost and difficulty in quantification.
By employing a microfluidic pore network chip combined with a fluid injection module, a temperature and pressure control module, a pressure acquisition module, a flow acquisition module, a microscopic imaging module, and a data processing module, synchronous data acquisition and three-phase identification of oil-gas-water three-phase displacement experiments are achieved, and permeability is calculated using a pore throat diagram model.
This method enables the quantitative determination of the relative permeability of the three phases of oil, gas, and water at a small sample scale, improving experimental efficiency and visualization capabilities, reducing sample consumption and cost, and enhancing the stability and consistency of the results.
Smart Images
Figure CN122409462A_ABST