Direct Magnetic Resonance Measurement of Average Pore Size

Armin Afrough; Florin  Marica; Derrick  Green; Laura  Romero-Zeron; Bruce  Balcom

Direct Magnetic Resonance Measurement of Average Pore Size

Armin Afrough
, Florin Marica
, Derrick Green
, Laura Romero-Zeron
, Bruce Balcom

University of New Brunswick
Green Imaging Technologies

Research output: Contribution to conference › Paper › Research › peer-review

Abstract

Magnetic Resonance relaxation time distribution measurements, notably T₂ measurement, are commonly employed as a proxy measurement of pore size. They are not direct measurements of pore size and may only be converted to pore size through a separate determination of a relaxivity. In this work we employ the Brownstein-Tarr interpretation of magnetic resonance relaxation to identify non-ground modes of signal decay. These modes, most readily identified through a T₁-T₂ measurement, permit determination of an average pore size and surface relaxivities ρ1 and ρ2. Bulk pore size measurements are reported for three different sandstones with average pore size confirmed by electron microscopy. The pore size measurement may be spatially resolved with a spatially resolved T₁-T₂ measurement, implemented with an inversion recovery preparation for an SE-SPI T₂ mapping measurement. Spatially resolved pore size measurements agree with bulk measurements.

Original language	English
Publication date	2019
Number of pages	7
Publication status	Published - 2019
Event	33rd International Symposium of the Society of Core Analysts - Pau, France Duration: 26 Aug 2019 → 30 Aug 2019 Conference number: 33

Conference

Conference	33rd International Symposium of the Society of Core Analysts
Number	33
Country/Territory	France
City	Pau
Period	26/08/2019 → 30/08/2019

Bibliographical note

SCA2019-035

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@conference{f17c9ce1a7604a12baf8b15cdc77b7b0,

title = "Direct Magnetic Resonance Measurement of Average Pore Size",

abstract = "Magnetic Resonance relaxation time distribution measurements, notably T2 measurement, are commonly employed as a proxy measurement of pore size. They are not direct measurements of pore size and may only be converted to pore size through a separate determination of a relaxivity. In this work we employ the Brownstein-Tarr interpretation of magnetic resonance relaxation to identify non-ground modes of signal decay. These modes, most readily identified through a T1-T2 measurement, permit determination of an average pore size and surface relaxivities ρ1 and ρ2. Bulk pore size measurements are reported for three different sandstones with average pore size confirmed by electron microscopy. The pore size measurement may be spatially resolved with a spatially resolved T1-T2 measurement, implemented with an inversion recovery preparation for an SE-SPI T2 mapping measurement. Spatially resolved pore size measurements agree with bulk measurements. ",

author = "Armin Afrough and Florin Marica and Derrick Green and Laura Romero-Zeron and Bruce Balcom",

note = "SCA2019-035 ; 33rd International Symposium of the Society of Core Analysts ; Conference date: 26-08-2019 Through 30-08-2019",

year = "2019",

language = "English",

}

TY - CONF

T1 - Direct Magnetic Resonance Measurement of Average Pore Size

AU - Afrough, Armin

AU - Marica, Florin

AU - Green, Derrick

AU - Romero-Zeron, Laura

AU - Balcom, Bruce

N1 - Conference code: 33

PY - 2019

Y1 - 2019

N2 - Magnetic Resonance relaxation time distribution measurements, notably T2 measurement, are commonly employed as a proxy measurement of pore size. They are not direct measurements of pore size and may only be converted to pore size through a separate determination of a relaxivity. In this work we employ the Brownstein-Tarr interpretation of magnetic resonance relaxation to identify non-ground modes of signal decay. These modes, most readily identified through a T1-T2 measurement, permit determination of an average pore size and surface relaxivities ρ1 and ρ2. Bulk pore size measurements are reported for three different sandstones with average pore size confirmed by electron microscopy. The pore size measurement may be spatially resolved with a spatially resolved T1-T2 measurement, implemented with an inversion recovery preparation for an SE-SPI T2 mapping measurement. Spatially resolved pore size measurements agree with bulk measurements.

AB - Magnetic Resonance relaxation time distribution measurements, notably T2 measurement, are commonly employed as a proxy measurement of pore size. They are not direct measurements of pore size and may only be converted to pore size through a separate determination of a relaxivity. In this work we employ the Brownstein-Tarr interpretation of magnetic resonance relaxation to identify non-ground modes of signal decay. These modes, most readily identified through a T1-T2 measurement, permit determination of an average pore size and surface relaxivities ρ1 and ρ2. Bulk pore size measurements are reported for three different sandstones with average pore size confirmed by electron microscopy. The pore size measurement may be spatially resolved with a spatially resolved T1-T2 measurement, implemented with an inversion recovery preparation for an SE-SPI T2 mapping measurement. Spatially resolved pore size measurements agree with bulk measurements.

M3 - Paper

T2 - 33rd International Symposium of the Society of Core Analysts

Y2 - 26 August 2019 through 30 August 2019

ER -

Direct Magnetic Resonance Measurement of Average Pore Size

Abstract

Conference

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