Metering Rheology of Super Heavy Oil with Fine Tubular Rheometer

Rheology property of a kind of super heavy oil from Liaohe Oilfield characterized by high gravity, high viscosity, high asphaltene and resin and low wax content is studied with a self-designed fine tubular rheomeer. Based on measured viscosity-temperature curve of the super heavy oil, viscosity-temperature equation is obtained by regression method. Fluid type of the super heavy oil at 80~90℃ is determined through experiment. It is considered that the transition point of the super heavy oil between Newtonian fluid and non-newtonian fluid is at 80℃. Rheological equation for the super heavy oil is gained by regression method, and according to the rheological curve, viscosity calculation equation for the super heavy oil's Newtonian fluid at different temperatures is got by means of regression method.