Using a method of para-magnetic probes utilising nitroxyl R1 and R6 ra
dicals (water-soluble and insoluble respectively), impacts of bed-inje
cted reactants on local mobility in residual oil and associated water
has been examined. The study highlightsa methodological approach to in
formation analysis concerning local mobility of a producing collector
within associated water after impacts by complex agents. The approach
focuses on physical and chemical processes involved.