Quantitative characterization of waxy crude oil wax crystal aggregation test device and its quantitative characterization method

Abstract

The present invention relates to a test device for quantitatively characterizing the wax crystal aggregation of waxy crude oil and its quantitative characterization method, wherein the program-controlled bath of the wax crystal aggregation test device for quantitatively characterizing waxy crude oil is connected to a circulating water jacket; the inert gas pressure source is connected to a water-proof copper Shearing tank; water-proof copper shearing tank taper is 1:2, circulating water jacket surrounds water-proof copper shearing tank, water-proof copper shearing tank oil outlet pipeline connects solenoid valve and Micro plunger pump, the nozzle at the end of the outlet tube of the micro plunger pump is set above the glass slide, and the slide glass is set on the hot and cold stage, and the cold and hot stage is externally connected to the polarizing microscope with the standard image acquisition system; solenoid valve, micro plunger Pumps, shear drive systems, polarizing microscopes, temperature sensors, and pressure sensors are all connected to the data acquisition and control system. The invention solves the problem that the waxy crystal image cannot be synchronized with the different hydrodynamic conditions experienced by the waxy crude oil in the prior art, and the gray scale information of the image will be lost when characterizing the wax crystal aggregation behavior.

Description

1. Technical field: [0001] 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. 2. Background technology: [0002] 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 reserves, In add...

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Problems solved by technology

[0004] 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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