Experimental and simulation study on the estimation of surface relaxivity of clay minerals

M Elsayed, A El-Husseiny, SR Hussaini… - Geoenergy Science and …, 2023 - Elsevier
Abstract Nuclear Magnetic Resonance (NMR) is an important tool for the evaluation of pore
structure and petrophysical properties of reservoir rocks. Pore Surface relaxivity (ρ 2), which …

A benchtop single-sided magnet with NMR well-logging tool specifications–Examples of application

R de Oliveira-Silva, E Lucas-Oliveira… - Journal of Magnetic …, 2021 - Elsevier
This article was written in honor of Prof. Bernhard Blümich, who has heavily impacted many
areas of Magnetic Resonance and, in particular, low-field and portable NMR with numerous …

Naturally fractured reservoir characterisation in heterogeneous sandstones: insight for uranium in situ recovery (Imouraren, Niger)

M Jamet, G Ballas, R Soliva, O Gerbeaud… - Solid Earth, 2024 - se.copernicus.org
This study delves into the characterisation of a heterogenous reservoir, the Tchirezrine II
sandstone unit in northern Niger. The characterisation is crucial for potential uranium in situ …

[HTML][HTML] Cl-and Na+ ions binding in slag and fly ash cement paste during early hydration as studied by 1H, 35Cl and 23Na NMR

Y Ji, L Pel, X Zhang, Z Sun - Construction and Building Materials, 2021 - Elsevier
Lacking effective and in particular direct methods, the study on Cl-and Na+ ion binding
during hydration has rarely been reported. In this study, a specially developed Nuclear …

Transverse relaxation measurements for moving samples in the presence of strong magnetic field gradients

AG Marassi, AG de Araújo-Ferreira… - Journal of Magnetic …, 2023 - Elsevier
Abstract Nuclear Magnetic Resonance (NMR) is one of the primary techniques used in the
oil industry for logging operations and in the laboratory environment to study rock formations …

[HTML][HTML] Mechanically oscillating sample under magnetic field gradients: MOS-NMR

E Lucas-Oliveira, AG Marassi… - Journal of Magnetic …, 2022 - Elsevier
Abstract Nuclear Magnetic Resonance (NMR) has been widely used in Petroleum Science
and Engineering to study geological formations (porous media) in laboratories or under well …

Naturally fractured reservoir characterization in heterogeneous sandstones: insight for Uranium In Situ Recovery (Imouraren, Niger)

M Jamet, G Ballas, R Soliva, O Gerbeaud… - …, 2024 - egusphere.copernicus.org
This study delves into the characterization of a complex reservoir, the Tchirezrine II
sandstone unit in North Niger, crucial for potential Uranium In Situ Recovery (ISR) in a …

Study of the correlation between magnetic susceptibility and NMR relaxation using T2-filtered and T1-weighted CPMG

E Lucas-Oliveira, MH Jácomo, AG Marassi… - Geoenergy Science and …, 2023 - Elsevier
NMR is widely applied in Materials Science for the characterization of porous materials. The
advantage of this technique is the high correlation between the NMR measurements and the …

Determining NMR Transverse Surface Relaxivity Using MicroCT Scanning for Pore Structure Evaluation in Pre-Salt Brazilian Carbonates

M Jacomo, G Hartmann, E Leite - 84th EAGE Annual Conference & …, 2023 - earthdoc.org
Characterizing the pore structure of a reservoir using low field nuclear magnetic resonance
(NMR) has been used extensively during the last decades by geologists and petrophysicists …

[PDF][PDF] Geoenergy Science and Engineering

E Lucas-Oliveira, MH Jácomo, AG Marassi… - iag.usp.br
ABSTRACT NMR is widely applied in Materials Science for the characterization of porous
materials. The advantage of this technique is the high correlation between the NMR …