Remagnetization and chemical alteration of sedimentary rocks

RD Elmore, AR Muxworthy, M Aldana - 2013 - pubs.geoscienceworld.org
Chemical remagnetization is a very common phenomenon in sedimentary rocks and
develo** a greater understanding of the mechanisms has several benefits. Acquisition of …

Effect of temperature on the EPR properties of oil shale pyrolysates

W Wang, Y Ma, S Li, J Shi, J Teng - Energy & Fuels, 2016 - ACS Publications
The reaction involving radical species is a key factor during the pyrolysis process used to
form hydrocarbons. In this study, electron paramagnetic resonance (EPR) spectroscopy was …

Temperature and time effect on the concentrations of free radicals in coal: Evidence from laboratory pyrolysis experiments

N Qiu, H Li, Z **, Y Zhu - International journal of coal geology, 2007 - Elsevier
The relationships between free radical concentration (Ng) and vitrinite reflectance (% Ro) of
coal were tested through 36 laboratory anhydrous pyrolysis experiments. The experiments …

Hydrocarbon-induced magnetic contrasts in some Venezuelan and Colombian oil wells

V Costanzo-Alvarez, M Aldana, M Díaz… - Earth, planets and …, 2006 - jstage.jst.go.jp
In this work we present a review of our current research on the subject of near-surface
hydrocarbon-induced magnetic contrasts. Samples are drill cuttings from number of …

Study of the factors responsible for the rheology change of a Brazilian crude oil under magnetic fields

JL Gonçalves, AJF Bombard, DAW Soares… - Energy & …, 2011 - ACS Publications
Recently, some works showed that magnetic fields may reduce the paraffin crystallization
and the viscosity of some types of oil. This Article shows the main results obtained in an …

[HTML][HTML] Formation of magnetic minerals at hydrocarbon-generation conditions

R Abubakar, AR Muxworthy, MA Sephton… - Marine and Petroleum …, 2015 - Elsevier
In this paper, we report the pyrolysis and formation of magnetic minerals in three source rock
samples from the Wessex Basin in Dorset, southern England. The experimental conditions …

Temperature dependence of the electron paramagnetic resonance spectrum of asphaltenes from Venezuelan crude oils and their vacuum residues

MS Hernández, DS Coll, PJ Silva - Energy & Fuels, 2019 - ACS Publications
The electron paramagnetic resonance (EPR) technique is used to evaluate the temperature
dependence of the aggregation processes in asphaltenes of heavy and extra-heavy crude …

Correlating biodegradation to magnetization in oil bearing sedimentary rocks

S Emmerton, AR Muxworthy, MA Sephton… - … et Cosmochimica Acta, 2013 - Elsevier
A relationship between hydrocarbons and their magnetic signatures has previously been
alluded to but this is the first study to combine extensive geochemical and magnetic data of …

Magnetic studies at Starunia paleontological and hydrocarbon bearing site (Carpathians, Ukraine)

O Menshov, R Kuderavets, S Vyzhva… - Studia Geophysica et …, 2016 - Springer
The Starunia oil-ozokerite deposit occurs in the Boryslav-Pokuttya Unit of the Carpathian
Foredeep, which is the main oil-and gas-bearing part of the Ukrainian Carpathians. Starunia …

Magnetic and mineralogy analysis of soils of hydrocarbon prospective areas in Ukraine

O Menshov, R Kuderavets, I Chobotok - 24th European Meeting of …, 2018 - earthdoc.org
The magnetic minerals are responsible for the enhanced magnetic signals in soils and
suggest a relationship exists between magnetic minerals and the alteration of hydrocarbons …