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Pipeline cleaning cleanliness full-pipeline detection method and device

A pipeline cleaning and pipeline detection technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of high freezing point, poor solubility, lack of pipeline cleaning degree detection methods, etc., and achieve high detection stability and good accuracy Effect

Pending Publication Date: 2020-09-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recalcitrant sludge is characterized by high freezing point, high content of inorganic substances, high viscosity, poor solubility and no fluidity, etc., so it has strong adhesion to the pipe wall and is difficult to remove
At present, there is a lack of an easy-to-operate, quantifiable, widely applicable, and non-controversial method for detecting the degree of pipeline cleaning

Method used

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  • Pipeline cleaning cleanliness full-pipeline detection method and device
  • Pipeline cleaning cleanliness full-pipeline detection method and device
  • Pipeline cleaning cleanliness full-pipeline detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] An embodiment of the present invention provides a method for detecting the cleanliness of pipeline cleaning, which specifically includes:

[0050] (1) Get poor quality

[0051] The first detection part is a foam ball, and the second detection part is a leather cup. Accurately weigh the weight of the foam ball and the cup, and the accuracy of the weighing equipment is higher than 1%. Wherein, the interference ratio of the foam ball is 5%, the interference ratio of the cup is 3%, and the cup is made of hard material.

[0052] After the pipeline is cleaned, place the weighed foam ball and leather bowl in the serving cylinder, with the foam ball in front and the leather bowl behind, and in the serving section, use 0.5MPa high-pressure N 2 Push the cup so that the cup pushes the foam through the pipe.

[0053] After receiving the foam ball and cup at the receiving end, weigh the foam ball and cup.

[0054] (2) Calculation of pipeline cleaning cleanliness

[0055] Calcul...

Embodiment 2

[0063] The embodiment of the present invention provides a method for detecting the cleanliness of the pipeline, which is roughly the same as that of Embodiment 1, except that the second detection piece is a straight plate (the material is the same as the leather bowl).

Embodiment 3

[0065] The embodiment of the present invention provides a method for detecting the cleanliness of the pipeline cleaning, which is roughly the same as that in Embodiment 1, except that the first detection parts are three foam balls.

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Abstract

The invention discloses a pipeline cleaning cleanliness full-pipeline detection method and device, and relates to the technical field of oil and gas pipeline treatment. Specifically, the detection method comprises the following steps: the cleanliness of a pipeline is calculated according to the obtained mass difference of a first detection piece and a second detection piece before and after the first detection piece and the second detection piece pass through the pipeline; the first detection piece and the second detection piece are both in full contact with the inner wall of the pipeline, theinterference rate is 1%-7%, the first detection piece is made of a water and oil absorption material, and the second detection piece is made of a hard material. According to the detection method, thepipeline cleaning cleanliness can be accurately calculated, numerical quantification of the pipeline cleaning cleanliness is achieved, and the detection method has the advantages of being high in detection stability and good in accuracy.

Description

technical field [0001] The invention relates to the technical field of oil and gas pipeline treatment, in particular to a pipeline cleaning cleanliness detection method and a device thereof. Background technique [0002] Oil and gas pipelines need to be cleaned due to reasons such as scrapping and changing uses, and the cleaning cleanliness is an important indicator for judging whether they meet the standards. [0003] The domestic industry standard "Technical Specifications for Disposal of Scrapped Oil and Gas Long-distance Pipelines" (SY / T 7413-2018) stipulates that the residues inside the pipeline should be cleaned to be oil-free, wax-free, and liquid-free on the inner wall, and the combustible gas detection should meet the flame Cleanliness of cutting conditions", this standard is mainly based on human subjective judgment, and there is no numerical quantification. At the same time, the industry standard stipulates that "after the residue cleaning is completed, the effec...

Claims

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Application Information

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IPC IPC(8): G01N5/00G01N5/02
CPCG01N5/00G01N5/02
Inventor 张国良乔志刚郭忠荣苏华东聂维明张家成雍信实李宇郑楠代乐赵树有刘玉峰李靖宇赵兵王岩宋纯民张继军李昕庞平温泉嵩
Owner CHINA PETROLEUM & CHEM CORP