Study on Rheological Properties of Extra-Heavy Crude Oil from Fields of Ukraine
The rheological properties of oils from 3 wells of Yablunivske field (Poltava region, Ukraine) were investigated using a rotational viscometer. According to the dynamic viscosity and shear stress dependence on the shear velocity, the nature of the oil flow has been determined, which is of practical importance for evaluating the effectiveness of different modes of action on the rheological behavior of oils during their extraction and transportation.