Multiscale nuclear magnetic relaxation dispersion of complex liquids in bulk and confinement

JP Korb - Progress in Nuclear Magnetic Resonance …, 2018 - Elsevier
The nuclear magnetic relaxation dispersion (NMRD) technique consists of measurement of
the magnetic-field dependence of the longitudinal nuclear-spin-lattice relaxation rate 1/T 1 …

[HTML][HTML] Asphaltenes and maltenes in crude oil and bitumen: A comprehensive review of properties, separation methods, and insights into structure, reactivity and …

K Primerano, J Mirwald, B Hofko - Fuel, 2024 - Elsevier
Asphaltenes and maltenes, integral components of petroleum systems, wield profound
influence over the properties of crude oils and derived products. This literature review …

NMR spectroscopy analysis of asphaltenes

S Ok, TK Mal - Energy & Fuels, 2019 - ACS Publications
In crude oil production and processing, asphaltene aggregation followed by precipitation is
a major problem for the oil industry as it causes deactivation of catalysts, blocking pipelines …

Petrophysical and geochemical evaluation of shales using magnetic resonance T1-T2∗ relaxation correlation

MS Zamiri, B MacMillan, F Marica, J Guo… - Fuel, 2021 - Elsevier
Quantification of fluid and organic matter content of shale samples are principal goals of
petrophysical and geochemical evaluation of shales that are essential to determine reservoir …

Proton–radical interaction in crude oil—A combined NMR and EPR Study

B Gizatullin, M Gafurov, A Rodionov, G Mamin… - Energy & …, 2018 - ACS Publications
We present a detailed study of electron/nuclear interaction in a specific crude oil by
continuous-wave and pulsed EPR, electron–nuclear double resonance (ENDOR) at W-band …

Modeling molecular interactions with wetting and non-wetting rock surfaces by combining electron paramagnetic resonance and NMR relaxometry

B Gizatullin, C Mattea, I Shikhov, C Arns, S Stapf - Langmuir, 2022 - ACS Publications
Three types of natural rocks─ Bentheimer and Berea sandstones, as well as Liège Chalk─
have been aged by immersion in a bitumen solution for extended periods of time in two …

NMR Measurements for Gas Adsorption Characterization on Shale: State of the Art and Perspectives

K Zeng, R Xu, T Lu, Z Tian, P Jiang - Energy & Fuels, 2023 - ACS Publications
Gas adsorption characterization in shale is essential for shale gas reserve estimation and
exploitation. While the adsorption capacity for containing all the gas in shale nanopores is …

Elucidating the 1H NMR Relaxation Mechanism in Polydisperse Polymers and Bitumen Using Measurements, MD Simulations, and Models

PM Singer, A Valiya Parambathu, X Wang… - The Journal of …, 2020 - ACS Publications
The mechanism behind the 1H nuclear magnetic resonance (NMR) frequency dependence
of T 1 and the viscosity dependence of T 2 for polydisperse polymers and bitumen remains …

Field-cycling NMR and DNP–A friendship with benefits

B Gizatullin, C Mattea, S Stapf - Journal of Magnetic Resonance, 2021 - Elsevier
Field-cycling relaxometry, or rather its electronic version with a resistive magnet which
requires signal detection at a field strength of 1 Tesla or below, remains an inherently …

Probing dynamics and interaction of maltenes with asphaltene aggregates in crude oils by multiscale NMR

N Vorapalawut, B Nicot, A Louis-Joseph… - Energy & Fuels, 2015 - ACS Publications
Asphaltenes cause many problems in crude oil transportation, refinery, and production. A
clear understanding of asphaltene behavior in crude oils is thus crucial for improving crude …