Study of Wax Deposition Pattern of High Wax-Bearing Crude Oil Based on Cold Finger Experiment
Lixin Wei, Da Li, Chao Liu, Zhaojun He, Ge Yang
Abstract
In order to solve the problem of wax deposition in waxy crude oil from the Daqing oilfield, cold fingers were used in the experimentation. Compared with other methods, the cold finger method is simple, easy to operate, and takes little space. Measurements of wax deposition with temperature, temperature differences between the crude oil and the wall, deposition time, and cold finger rotation rate were made. The results showed that the deposition rate is up to 0.35 g/h at 8–24 h. The maximum deposition rate at 90 rotations/min was 0.26 g/h, which is 3% higher than the minimum deposition rate.
Topics & Concepts
WaxDeposition (geology)Crude oilMaterials scienceChromatographyChemistryPetroleum engineeringComposite materialGeologyPaleontologySedimentPetroleum Processing and AnalysisHydrocarbon exploration and reservoir analysisEnhanced Oil Recovery Techniques