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Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

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Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

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Quantification of microemulsion systems using low-field T₁-weighted imaging.

Delphine Herrera¹, Thibaud Chevalier¹, Marc Fleury¹

¹IFP Energies nouvelles, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison Cedex, France.

Magnetic Resonance Imaging

|August 15, 2021

Summary

This study introduces a novel NMR imaging technique for analyzing microemulsions used in enhanced oil recovery. The method provides non-destructive, quantitative composition profiles, improving the representativity of model systems for better process efficiency.

Keywords:

Microemulsion NMR Quantification T(1)-weighted

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Last Updated: Oct 24, 2025

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Area of Science:

Petroleum Engineering
Physical Chemistry
Materials Science

Background:

Microemulsions are crucial for Enhanced Oil Recovery (EOR), aiding crude oil extraction from reservoirs.
Current quantification methods for microemulsion model systems are often destructive, time-consuming, and unsuitable for complex or opaque crude oils.
The representativity of simplified model systems for EOR is questioned due to neglected kinetics and crude oil complexity.

Purpose of the Study:

To develop a non-destructive, quantitative method for analyzing microemulsion composition.
To assess the kinetic aspects and representativity of microemulsion model systems for EOR.
To provide a tool for understanding the behavior of co-surfactant, oil, and brine in Winsor microemulsions.

Main Methods:

High-resolution T1-weighted magnetic resonance imaging (NMR) technique.
Analysis of 1D composition profiles (co-surfactant, oil, brine) in Winsor I, III, and II microemulsions.
Correlation of NMR results with X-Ray Micro-CT experiments for validation.

Main Results:

The developed NMR method provides quantitative, non-destructive 1D composition profiles of microemulsion components.
Results were validated against X-Ray Micro-CT, demonstrating method accuracy.
Conditions for the NMR method's validity and potential limitations were established.

Conclusions:

The proposed NMR imaging technique offers a significant advancement for characterizing microemulsions in EOR research.
This method enhances the representativity of model systems by providing kinetic and compositional insights.
The technique holds potential for broader applications involving similar microemulsion systems.