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Real-time risk evaluation method for cathode protection potential data

A technology of risk assessment and protection potential, applied in the direction of electric digital data processing, data processing application, special data processing application, etc., can solve the problems of poor accuracy and real-time performance, and lack of attention to daily risk evaluation of cathodic protection potential data, etc.

Active Publication Date: 2020-10-02
浙江浙能天然气运行有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the setting of cathodic protection potential is based on industry standards, without paying attention to the risk assessment of daily cathodic protection potential data, and the accuracy and real-time performance are poor

Method used

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  • Real-time risk evaluation method for cathode protection potential data
  • Real-time risk evaluation method for cathode protection potential data
  • Real-time risk evaluation method for cathode protection potential data

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Embodiment Construction

[0060] In order to illustrate the embodiments of the present invention more clearly, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0061] Such as figure 1 As shown, the real-time risk assessment method of cathodic protection potential data in the embodiment of the present invention includes the following steps:

[0062] S1, pipeline segmentation, set the corresponding potential threshold according to the properties of each pipeline segment after segmentation; the potential threshold includes the maximum protection potential and the minimum protection potential; the properties of the pipeline include the surface condition of the pipeline, soil character...

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Abstract

The invention relates to a real-time risk evaluation method for cathode protection potential data, and the method comprises the steps: S1, segmenting a pipeline, and setting a corresponding potentialthreshold value according to the attribute of each segmented pipeline segment; wherein the potential threshold comprises a maximum protection potential and a minimum protection potential; wherein theattributes of the pipe sections comprise surface conditions, soil characteristics and seasonal changes of the pipeline; S2, acquiring a cathode protection potential in real time through a cathode protection pile, establishing a corresponding relationship with a potential threshold set by a pipe section where the cathode protection pile is located, and establishing a cathode protection database; S3, analyzing a failure probability and a failure result of the negative protection potential according to the negative protection database so as to carry out risk evaluation, wherein the failure is defined as that the negative protection potential is located outside an interval between the maximum protection potential and the minimum protection potential. According to the method, the pipeline is segmented, the reasonability and real-time performance of cathode protection potential setting are guaranteed, meanwhile, the clustering algorithm is applied to cathode protection data risk evaluation of the pipeline, expert subjective experience is reduced, and risk evaluation is more objective.

Description

technical field [0001] The invention belongs to the technical field of pipeline cathodic protection, and in particular relates to a real-time risk assessment method for cathodic protection potential data. Background technique [0002] Over the years of the development of the pipeline transportation industry, accidents have occurred at a high rate, among which there are many serious accidents with serious consequences, including economic losses and casualties, which have aroused strong social repercussions. Therefore, the post-management, reliability analysis and risk assessment of the pipeline system have also attracted attention from various aspects. For example, Shuai Jian and others from China University of Petroleum disclosed a quantitative risk assessment method for oil and gas pipelines based on failure data. The model determines the basic failure probability and correction factor index system of oil and gas pipelines by analyzing the pipeline classification failure d...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06Q10/06G06F113/14
CPCG06Q10/0635G06F30/20G06F2113/14
Inventor 杨秦敏滕卫明钱伟斌钱济人陈积明范海东李清毅丁楠向星任解剑波沈佳园
Owner 浙江浙能天然气运行有限公司
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