Rheological properties of russian crude oil

Russia has 7.2 billion tons of difficult to produce, high-viscosity (over 30) crude oils. The reserves of these crudes are concentrated in 267 fields [1]. The Russian field located within the Polar circle — in the Gas Region of the Yamal-Nenets Autonomous District in Tyumen Oblast', is one of the largest. This field, opened in 1968, has total crude oil reserves of up to 1.5 billion tons. Its industrial exploitation has not yet begun.