NMR of liquid 3He in clay pores at 1.5 K
R.R. Gazizulin, A.V. Klochkov, V.V. Kuzmin, K.R. Safiullin, M.S., Tagirov, A.N. Yudin, V.G. Izotov, L.M. Sitdikova
TL;DR
This paper introduces a novel NMR method using liquid 3He to study porous media, successfully measuring clay porosity and analyzing relaxation time distributions, providing new insights into clay mineral pore structures.
Contribution
The paper presents a new NMR technique with liquid 3He for porous media analysis, including the first measurement of clay porosity and T1 relaxation time distribution analysis.
Findings
Integral porosity of clay samples ranges from 10-30%.
Inverse Laplace transform yields relaxation time distributions.
Method demonstrates potential for detailed pore structure analysis.
Abstract
In the present work a new method for studying porous media by nuclear magnetic resonance of liquid 3He has been proposed. This method has been demonstrated in an example of a clay mineral sample. For the first time the integral porosity of clay sample has been measured. For investigated samples the value of integral porosity is in the range of 10-30%. Inverse Laplace transform of 3He longitudinal magnetization recovery curve has been carried out, thus distribution of relaxation times T1 has been obtained.
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