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Method and device for detecting water content of water-oil layered mixed liquid based on image processing

A technology of image processing and detection method, which is applied in the directions of image data processing, image analysis, measuring devices, etc., can solve the problems that the real-time detection and detection accuracy cannot be guaranteed at the same time, so as to reduce the impact of detection accuracy, simple operation steps, The effect of improving accuracy

Active Publication Date: 2021-03-26
NORTHWEST UNIV
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  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a water-oil layered mixed liquid water content detection method and device based on image processing to solve the real-time detection and detection problems of the water-oil layered mixed liquid water content detection method in the prior art. Accuracy cannot be guaranteed at the same time

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  • Method and device for detecting water content of water-oil layered mixed liquid based on image processing
  • Method and device for detecting water content of water-oil layered mixed liquid based on image processing
  • Method and device for detecting water content of water-oil layered mixed liquid based on image processing

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Embodiment 1

[0052] Such as figure 1 As shown, this embodiment discloses a method for detecting the water content of the water-oil layered mixed liquid based on image processing, which is used for detecting the water content of the water-oil layered mixed liquid stored in a transparent container.

[0053] In this embodiment, the water-oil layered mixed liquid is crude oil. Due to the existence of groundwater and water injection in the oil field during the extraction process, the crude oil extracted from the oil well contains water. By demulsifying and heating the crude oil, the separation of oil and water ions is promoted, the water sinks, and the oil and water are separated to obtain a water-oil layered mixed liquid with obvious color difference. The image information of the water-oil layered mixture is collected, and the image processing algorithm is used to detect the coordinate points of the junction of air and oil, the junction of oil and water, and the bottom edge of the container, s...

Embodiment 2

[0088]This embodiment discloses a device for detecting the water content of the water-oil layered mixed liquid based on image processing, which is characterized in that it is used to realize the method for detecting the water content of the water-oil layered mixed liquid based on image processing described in Embodiment 1 , the device includes an image acquisition module, an image preprocessing module, an image grayscale sequence calculation module, an image grayscale differential value sequence calculation module, an image grayscale differential value sorting module, and a water content calculation module;

[0089] Such as Figure 5 As shown, in this embodiment, the image preprocessing module, the image grayscale sequence calculation module, the image grayscale differential value sequence calculation module, the image grayscale differential value sorting module and the water content calculation module are all integrated in the microprocessor module For processing, the micropr...

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Abstract

The invention discloses a method and device for detecting the moisture content of water-oil stratified mixed liquid based on image processing. By collecting image information of water-oil stratified mixed liquid and using an image processing algorithm, the interface between air and oil and the boundary between oil and water are detected. The coordinate points of the junction and the bottom edge of the container are used to calculate the moisture content of the water-oil layered mixed liquid; the method for detecting the moisture content of the water-oil layered mixed liquid provided by the present invention adopts the method of grayscale accumulation difference to detect the water-oil layered mixture. The liquid grayscale image is processed, which reduces the impact of noise on the detection accuracy, improves the detection accuracy, has a short measurement cycle, small measurement error, and high measurement accuracy; and the water-oil layered mixed liquid provided by the invention contains water. Compared with traditional measuring devices, the rate detection device has a higher degree of automation, simple operation steps, and can realize remote transmission of test data.

Description

technical field [0001] The invention relates to a method and a device for detecting the water content of a water-oil layered mixed liquid, in particular to a method and a device for detecting the water content of a water-oil layered mixed liquid based on image processing. Background technique [0002] The water content in the water-oil layered mixture is an important parameter in the chemical industry, such as the water content of crude oil, which has important reference value in crude oil processing, storage, transportation, pricing, etc. In the process of oilfield exploitation, by measuring the water content of crude oil, the water level of the oil well can be predicted in time, the position of the oil layer can be estimated, and it can provide reference for oilfield exploitation, which is of great significance to the automation of oilfield exploitation. [0003] The water content measurement methods in the water-oil layered mixture mainly include capacitance detection met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84G06T7/00
Inventor 唐升储波刘清彭进业
Owner NORTHWEST UNIV
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