Experimental device and experimental method of superheated steam distillation of thickened oil

Abstract

The invention provides an experimental device of superheated steam distillation of thickened oil. The experimental device comprises a steam generation unit, a heating unit, a metering unit, a distillation kettle, a liquid phase collecting unit and a gaseous phase collecting unit, wherein the steam generation unit is communicated with the heating unit; the heating unit is communicated with the metering unit; the distillation kettle is provided with a feeding hole, a liquid phase outlet and a gaseous phase outlet; the metering unit is communicated with the feeding hole of the distillation kettle; the liquid phase outlet of the distillation kettle is communicated with the liquid phase collecting unit; the gaseous phase outlet of the distillation kettle is communicated with the gaseous phase collecting unit. The invention also provides an experimental method of superheated steam distillation of thickened oil. The experimental device is adopted for the experimental method. The experimental device and the experimental method of the superheated steam distillation of the thickened oil are capable of realizing stable equilibrium distillation in a laboratory and accurately obtaining a distillation rate and a distillation product and also capable of correcting a state equation; as a result, the contribution of the distillation effect of water steam in the steam injection oil extraction process can be obtained.

Description

technical field [0001] The invention relates to an experimental device and an experimental method for heavy oil superheated steam distillation, and belongs to the technical field of petroleum exploitation. Background technique [0002] In the process of steam injection to extract heavy oil, superheated steam has a distillation effect on crude oil, and these light components distilled from crude oil enter the oil reservoir in the state of gas phase, which is of great help to the viscosity reduction of crude oil, making crude oil The recovery rate of oil has been improved to a certain extent, which has promoted the extraction of crude oil. But exactly how effective the superheated steam is on the distillation of crude oil, and what the distillation rate is, these specific details are not clear. [0003] Specific parameters such as the distillation effect of superheated steam on crude oil need to be tested by experimental devices. At present, the conventional experimental devi...

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Problems solved by technology

But exactly how effective the superheated steam is on the distillation of crude oil, and what the distillation rate is, these specific details are not clear

[0003] Specific parameters such as the distillation effect of superheated steam on crude oil need to be tested by experimental devices. At present, the conventional experimental devices and methods for vacuum distillation of crude oil are all related to chemical technology, aiming at reducing the heat load and heat consumption of equipment. The purpose is also to purify and separate crude oil. Therefore, conventional crude oil distillation experimental equipment is not suitable for superheated steam distillation of super-heavy oil (viscosity greater than 10000mPa·s at 50°C) under high temperature and high pressure environment. Superheat control, flow measurement, etc. are difficult to achieve with conventional experimental devices and experimental methods

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