Method and device for determining viscosity grade of diluted thickened oil

Abstract

The invention discloses a method and device for determining a viscosity grade of diluted thickened oil, and belongs to the field of oil product transportation. The method comprises the steps of determining first proportion information, second proportion information, a first viscosity and a second viscosity; obtaining at least one third viscosity, specifically, the at least one third viscosity is obtained by carrying out viscosity measurement at least one time on the viscosity of the diluted thickened oil after the thickened oil is diluted by thin oil according to the first proportion information and the second proportion information; determining a fourth viscosity based on the first proportion information and the second proportion information as well as the first viscosity and the second viscosity through a preset diluted thickened oil viscosity model; and determining the viscosity grade of the diluted thickened oil based on the at least one third viscosity and the fourth viscosity. According to the method and the device, the viscosity grade of the diluted thickened oil is determined, so that when the viscosity grade reaches the viscosity grade which is suitable for safe transportation, it can be determined that the diluted thickened oil can be safely transported to an oil transportation destination, and therefore remote diversion and use of the diluted thickened oil can be realized.

Description

technical field [0001] The invention relates to the field of oil product transportation, in particular to a method and device for determining the viscosity grade of mixed thin heavy oil. Background technique [0002] With the massive exploitation of heavy oil, how to safely transport heavy oil has increasingly become a concern. Due to the high density and high viscosity of heavy oil, it is difficult to directly transport it by pipeline. At present, people can realize the safe transportation of heavy oil through pipelines by reducing the viscosity of heavy oil. For example, the viscosity of heavy oil can be reduced by heating, adding chemical viscosity reducer, blending thin oil and other treatment methods, and then the heavy oil with reduced viscosity can be transported by pipeline. [0003] In practical application, when using the treatment method of blending thin oil to reduce the viscosity of heavy oil, it is necessary to ensure that the viscosity of the thick oil after ...

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Problems solved by technology

[0003] In practical application, when using the treatment method of blending thin oil to reduce the viscosity of heavy oil, it is necessary to ensure that the viscosity of the thick oil after blending meets the requirements for safe pipeline transportation, so it is necessary to judge whether the viscosity level of the thick oil after blending is acceptable To achieve the viscosity level of safe pipeline transportation, the existing methods for determining the viscosity of oil products are not suitable for blending thin heavy oil. Therefore, there is an urgent need for a method that can be used to determine the viscosity level of blending thin heavy oil

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