A new method for express control of hydrocarbon fluids and their mixtures using nonlinear coefficients in the Bloch equations

The need to develop new methods for rapid screening of liquid media, especially hydrocarbons, is substantiated. The shortcomings of existing methods are considered, and the advantages of applying nuclear magnetic resonance using a modulation-based signal acquisition technique are highlighted. A portable nuclear magnetic relaxometer design and a new methodology for determining the composition and component concentrations in hydrocarbon mixtures, as well as in media that do not chemically react with each other, have been developed. Studies of hydrocarbons and their mixtures were carried out. The effectiveness of the proposed methodology for establishing hydrocarbon composition and determining component concentrations was confirmed based on NMR signal acquisition results and the measured relaxation times T₁ and T₂.

Authors: R. V. Davydov

Direction: Physics

Keywords: Bloch equations, non-stationary coefficients, express control, magnetic resonance signal, hydrocarbons, mixture, relaxation times T₁ and T₂, concentration

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