Pipelining characteristics of Daqing waxy crude oil

Compared with pipelining Newtonian fluid, the pipelining characteristics of the waxy crude pipeline are sensitive to the complicated rheological properties. When the temperature is lower than the wax appearance temperature(WAT), the waxy crude oil has complicated non-Newtonian flow characteristics that are related to shear and thermal history. Because of these complicated parameters, it is very difficult to study the pipelining characteristics of the waxy crude pipeline. The rheological parameters near the gel point were measured accurately on the basis of quantitatively simulation of the Daqing oil pipelining. A program was developed to predict critical condition of the pipeline unsteady operation condition. This research contributes to solve the low flowrate problems and provides theoretical support to transport the crude oil at lower temperature.