A kind of oil and gas pipeline potential detection method and device for cathodic protection
A cathodic protection and potential detection technology, applied in the field of oil and gas pipeline detection, can solve the problems of low reliability of detection results and single monitoring parameters, etc.
Active Publication Date: 2022-07-29
成都博瑞科传科技有限公司
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[0005] In view of this, the present invention provides an oil and gas pipeline potential detection method and its device for cathodic protection. By improving the detection method, the problems of single monitoring parameters and low reliability of detection results in the traditional oil and gas pipeline potential detection method are solved.
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[0023] In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] like figure 1 As shown, an oil and gas pipeline potential detection method for cathodic protection includes:
[0025] S1: Collect the digital signal of the voltage of the pipeline point to be measured.
[0026] Further, collecting the digital signal of the voltage of the cathodic protection potential includes: when the cathodic protection potential test piece is electrically connected to the pipeline to be tested, collecting the digital signal of the voltage between the cathodic protection potential test piece and the reference electrode, and the pipeline to be tested. The digital signal of the voltage between the reference electrode and the reference electrode, the digital signal of the voltage formed by the current on ...
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The invention discloses a method and a device for detecting the potential of oil and gas pipelines for cathodic protection, comprising: collecting digital signals of the voltage of pipeline points to be measured; processing all digital signals, and generating corrosion based on the processing results of different types of digital signals Evaluation results, the corrosion evaluation results include the energization voltage, the power-off voltage, the equivalent AC voltage component and the AC voltage component of the cathodic protection potential, the DC current component and the AC current component of the AC test piece, the DC current component of the cathodic protection potential test piece and The AC current component and the DC effective voltage of the natural test piece; the corrosion evaluation results are transmitted to the user terminal. The present invention sets up a variety of detection test pieces and collects a variety of monitoring parameters, and improves the data processing method of the monitoring parameters, so that the back-end data processing unit can restore the real acquisition parameters, thereby generating real corrosion evaluation results in multiple dimensions. .
Description
technical field [0001] The invention relates to the technical field of oil and gas pipeline detection, in particular to a method and a device for detecting the potential of oil and gas pipelines for cathodic protection. Background technique [0002] Cathodic protection is an important means to ensure the safe operation of oil and gas pipelines, and its power-off potential is an important parameter for judging whether the pipeline is protected. The development of cathodic protection technology for oil and gas pipelines is relatively mature. In actual operation, the protection effect depends on the correct maintenance of the system. [0003] At present, the detection of cathodic protection parameters of oil and gas pipelines at home and abroad basically adopts the method of regular manual monitoring, and directly measures the cathodic protection parameters through a digital multimeter. The rare automatic oil and gas pipeline potential collectors can only collect power-on pote...
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IPC IPC(8): C23F13/22C23F13/02
CPCC23F13/22C23F13/02C23F2213/32
Inventor 刘学辉唐勇丁帅姜子鱼
Owner 成都博瑞科传科技有限公司