The resins of heavy sour crude oils with high vanadium and nickel contents have been investigated. Using original procedure, the concentrates of organonitrogen bases with various compositions and molecular masses have been recovered. The effect of the concentrates on the colloidal stability of the oil to asphaltene precipitation has been studied. Kinetic studies using UV spectroscopy have shown that organonitrogen bases, as well as natural amphiphiles in resins affect asphaltene aggregation and decrease the rate of their precipitation in the solvent/flocculant system.

Keywords:
scale remediation, Production Chemistry, Upstream Oil & Gas, precipitation, paraffin remediation, wax inhibition, asphaltene remediation, remediation of hydrates, wax remediation, oilfield chemistry
Subjects:
Production Chemistry, Metallurgy and Biology, Flow Assurance, Inhibition and remediation of hydrates, scale, paraffin / wax and asphaltene, Precipitates (paraffin, asphaltenes, etc.)
Copyright 2018, Society of Petroleum Engineers
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