NMR/MRI Articles

Visualization experimental investigations of supercritical CO2 inject into porous media with the fissure defect

Visualization experimental investigations of supercritical CO2 inject into porous media with the fissure defect

Visualization experimental investigations of supercritical CO2 inject into porous media with the fissure defect Abstract  Experimental studies about supercritical CO2-brine displacement are necessary to understand the detailed flow process of injected supercritical CO2 in deep saline aquifers. This article adopts experimental method to research the supercritical CO2 and water flow in porous media, using MRI as visualization and measurement method. Supercritical CO2 and water are injected into the sintered glass porous media structure by different mixture ratios. The sintered glass porous media structure is designed with the fissure defect. Visualization and analysis results simultaneously demonstrate that supercritical CO2 saturation and distribution vary with diffe……

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Visualization Study on Fluid Distribution and End Effects in Core Flow Experiments with Low Field MRI Method

Visualization Study on Fluid Distribution and End Effects in Core Flow Experiments with Low Field MRI Method

Visualization Study on Fluid Distribution and End Effects in Core Flow Experiments with Low Field MRI Method Abstract  Core flow experiment is an important means of simulation experiments to evaluate the effect of displacing agent, but conventionally the internal characteristics in the core cannot be intuitively observed, and then some important information cannot be directly acquired by experiments. In this paper, a visualization method was used to detect the water-flooding process by using an improved low field nuclear Magnetic Resonance Imaging (MRI) device, and the images describing the distribution of oil and water were collected. The experimental results show that the distribution of oil and water can be visually detected in an appropriate range of core porosi……

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Solid Fat Content SFC NMR Analyzer – PQ001

Solid Fat Content SFC NMR Analyzer – PQ001

 Solid Fat Content SFC NMR Analyzer – PQ001 Determination of Solid Fat Contentin Fats by theDirect Method (AOCS Cd 16b-93) SFC It is one of the characteristics of fat that it will change consistency with higher and lower temperatures, from more or less solid to liquid. The Solid Fat Content (SFC) defines the percentage of the solid parts of fats at certain temperatures. The traditional dilatometry methods for SFC determination are slow, irreproducible and require additional chemicals. Direct measurements of SFC by NMR (nuclear magnetic resonance) provides quick and accurate determination of SFC value. Solid Fat Content determination by NMR is based on direct ratio measuring between the solid and liquid parts of the sample. Official International Standard Methods……

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