Effect of a rapeseed oil derived pour point depressant on the flow properties of the waxy oil from Changqing Oilfield

In this paper, rapeseed oil was modified with diethylenetriamine to obtain a vegetable oil-derived pour point depressant (PPD), which used reduce the and improve flowability of crude (from Changqing Oilfield), has high content paraffin. Various instruments such as differential scanning calorimetry (DSC), polarized optical microscopy (POM), viscometer were investigate performance PPD. The results showed that introduction PPD into waxy sample, could be significantly lowered from 20.0 °C 13.2 °C. At 23 °C, viscosity reduction rate sample 68% in presence 500 mg/kg wax morphology observation also confirmed formation growth crystals delayed restrained. supported synthesized paper effectively Oilfield.