Corresponding Factors Influencing Crude Oils Assay Using Low-field Nuclear Magnetic Resonance-中国期刊网

摘要 Inthisstudy,themainfactorsinfluencingthemeasurementsbymeansoftheoff-linelow-field1HNMRinthelabwerediscussedbaseonarobustcalibrationmodelestablishedbythePLSalgorithmusing255crudeoilsamples.Thepreheatingtemperaturehadagreatinfluenceontheviscosityofoilsamplesandtheresolutionofspectralanalysis.Therepeatabilityofspectralmeasurementswasimpactedbythemetalandwaxcontentoftheoilsamples.Forthecaseofhighwaxcontentoils,thewaxspeciesbegantocrystallizeinthecourseofdeterminationthatcouldaffecttherepeatabilityofspectralmeasurements.ThesefactorshaveevidencedwhythepreheatingdevicesandfilterunitarenecessarywhenlowfieldNMRsystemisusedintheonlineanalysisprocess.Theinvestigationisveryimportantfortheon-lineapplicationofthelowfieldNMR.

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Corresponding Factors Influencing Crude Oils Assay Using Low-field Nuclear Magnetic Resonance

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Corresponding Factors Influencing Crude Oils Assay Using Low-field Nuclear Magnetic Resonance

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