Testing apparatus for quantitatively characterizing wax crystal aggregation of wax-bearing crude oil and quantitative characterizing method of testing apparatus

Abstract

The invention relates to testing apparatus for quantitatively characterizing wax crystal aggregation of wax-bearing crude oil and a quantitative characterizing method of the testing apparatus. The testing apparatus for quantitatively characterizing wax crystal aggregation of the wax-bearing crude oil is characterized in that a program control bath of the apparatus is connected with a circulating water sleeve; an inert gas pressure source is connected with a water isolation type copper shear tank; the taper of the water isolation type copper shear tank is 1:2, the water isolation type copper shear tank is surrounded by the circulating water sleeve, and oil outlet pipeline of the water isolation type copper shear tank is connected with a solenoid valve and a micro plunger pump sequentially, the tail end pipe port of an outlet pipe of the micro plunger pump is arranged above a slide arranged on a freezing-heating stage, and the freezing-heating stage is externally connected with a polarizing microscope of a standard configuration image acquisition system; the solenoid valve, the micro plunger pump, a shear driving system, the polarizing microscope, a temperature sensor and a pressure sensor are all connected to a data acquisition and control system. The problems that wax crystal image capture cannot be synchronized with different hydrodynamic conditions experienced by the wax-bearing crude oil and gray information of images can be lost during characterization of wax crystal aggregation behaviors in the prior art are solved.

Description

[0001] 1. Technical field: [0002] The present invention relates to waxy crude oil pipeline transportation technology, when describing the mechanism of wax deposition in the shear flow field from the perspective of thermodynamics and dynamics, it solves the shape and structure of wax crystals precipitated in the crude oil under the influence of the shear effect of pipeline transportation, especially It is a technical problem of quantitative characterization of its aggregation behavior, specifically related to the experimental device for quantitative characterization of waxy crude oil wax crystal aggregation and its quantitative characterization method. [0003] 2. Background technology: [0004] Under the background that my country's dependence on foreign crude oil is increasing year by year (in 2015, it broke through 60% for the first time, reaching 60.6%; in 2016 or nearly 65%), in order to ensure "oil security", in addition to increasing exploration efforts to find new oil r...

AI Technical Summary

Problems solved by technology

[0007] An object of the present invention is to provide quantitatively characterizing waxy crude oil wax crystal aggregation test device, another object of the present invention is to provide quantitatively characterize waxy crude oil wax crystal aggregation test device quantitatively characterize the method for wax crystal aggregation, it is used to solve existing The technology cannot synchronize the waxy crystal image acquisition with the different hydrodynamic conditions experienced by waxy crude oil, and the image grayscale information will be lost when characterizing the wax crystal aggregation behavior, especially the wax crystal structure in the distribution area is idealized to make quantification The problem of unreliable parameters

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