Overhauser-driven dynamic nuclear polarization for petroleum systems: literature survey and comparing with experiments

Thermal EOR International Workshop III: "Thermal Methods for Enhanced Oil Recovery: Laboratory Testing, Simulation and Oilfields Applications"

Alexandrov, A.^1 ; Gafurov, M.^1

Kazan Federal University, 18 Kremlevskaya Str., Kazan, Russia^1

关键词: Biomedical science;    Dispersed systems;    Dynamic nuclear polarization;    Geophysical exploration;    High magnetic fields;    Home made spectrometer;    Paramagnetic complexes;    Petroleum systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/282/1/012018/pdf
DOI  :  10.1088/1755-1315/282/1/012018

来源: IOP

【 摘 要 】

Overhauser dynamic nuclear polarization (ODNP) in solutions of various paramagnetic complexes has been studied for 60 years, but only in recent years has found applications of broad interest to biophysical and biomedical sciences, for the investigation of soft materials and biomolecules. Relatively few aplications are focused on the ODNP in petroleum dispersed systems (PDS) like oils, bitumen, their fractions and solutions. This work present a short review of the ODNP studies of PDS with aim to introduce the basic concepts and key values for the effective petroleum ODNP in low and high magnetic fields. Experimental results obtained in our Laboratory by using home-made spectrometer are included. The study can be used for designing ODNP spectrometers, proton precession magnetometers for geological and geophysical exploration, investigation of supramolecular organisation of PDS and their components.