About anomalous change in viscosity properties when mixing hard-to-recover oils

The results of the studies show that one of the reasons that causes immiscibility of various crude oils is the presence of organic solids in the form of precipitated asphaltenes in the oil mixture. Using the example of different grades of Azerbaijan oils, it was established that in addition to the precipitation of various sediments, the manifestation of "incompatibility" in oil mixtures can also be expressed in noticeable anomalies in quality indicators. In oil mixtures, in some cases, a synergistic effect can be observed. Thus, it was shown that as a result of the mutual influence of oils when they are mixed in the process pipelines of the well production collection system, the formation of various plugs can be observed due to abnormal changes in practically important parameters, such as viscosity, pour point, volume, etc.