Oil and gas pipeline potential detection method and device for cathode 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
Active Publication Date: 2022-02-08
成都博瑞科传科技有限公司
View PDF8 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[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.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] like figure 1 As shown, a potential detection method for oil and gas pipelines for cathodic protection, including:
[0025] S1: Collect the digital signal of the voltage of the pipeline point to be tested.
[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 with the pipeline to be tested, collecting the digital signal of the voltage between the cathodic protection potential test piece and the reference electrode, the pipeline to be tested The digital signal of the voltage between the AC test piece and the reference electrode, the digital signal of the voltage formed by the current o...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an oil and gas pipeline potential detection method and device for cathode protection. The method comprises the following steps: acquiring digital signals of voltage of a to-be-detected pipeline point; processing all the digital signals, and generating a corrosion evaluation result based on processing results of different types of digital signals, wherein the corrosion evaluation result comprises power-on voltage, power-off voltage, an equivalent alternating current voltage component and an alternating current voltage component of a cathode protection potential, a direct current component and an alternating current component of an alternating current test piece, a direct current component and an alternating current component of a cathode protection potential test piece and direct current effective voltage of a natural test piece; and transmitting the corrosion evaluation result to a user side. According to the invention, a plurality of detection test pieces are arranged, a plurality of types of monitoring parameters are collected, and a data processing method of the monitoring parameters is improved, so that a rear-end data processing unit can restore real collected parameters, and a multi-dimensional real corrosion evaluation result is further generated.
Description
technical field [0001] The invention relates to the technical field of oil and gas pipeline detection, in particular to an oil and gas pipeline potential detection method for cathodic protection and a device thereof. 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 to judge whether the pipeline is protected. The development of cathodic protection technology for oil and gas pipelines has been 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 is basically based on regular manual monitoring, and the cathodic protection parameters are directly measured by digital multimeters. However, the rare automatic oil and gas pipeline potential acquisition instrument can only collect the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
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