Oil and gas pipeline in the process of long-term operation of various corrosion monitoring have been applied in industry

It is reported that every year because of the economic consequences of the corrosion (GNP) of the total output value of the national economy by 3% ~ 5%. In order to reduce the corrosion loss, prolong the service life of equipment, to prevent corrosion lead to the occurrence of safety accidents and environmental pollution, various corrosion monitoring technology have been applied in industry. The harm of corrosion is particularly severe in the field of oil and gas fields. Oil and gas pipeline in the process of long-term operation may be due to incompleteness of the internal processing of medium corrosion problems, not only affects the safe operation of pipeline, and it will cause environmental pollution and even disaster. Especially the high pressure natural gas pipeline, once broken, compressed gas rapidly expanding and release a lot of energy, causing explosions, fires, etc., give a person's life, property and the environment caused great damage. Causes of corrosion in the pipeline leakage accident, 70% - 90%, "therefore, the corrosion monitoring of pipeline is extremely important in the production.

Corrosion monitoring corrosion factors of the system is fully known oil and gas production, to develop the basis of anti-corrosion measures; Is an effective method for monitoring and evaluation of anti-corrosion measures effect; Is the basis of corrosion protection work; Can master the corrosion situation, corrosion dynamic for production of oil and gas fields, and by the implementation of anti-corrosion measures and monitoring, to avoid corrosion of the consequences of finally realize "control and slow down the corrosion as well as the occurrence of safety accidents, improve the efficiency of the oil and gas comprehensive development" purpose. The corrosion monitoring of far-reaching significance. First, make the production devices in the monitoring state, such as set up on the key technology of pipeline corrosion probe real-time monitoring; Decorate in the easy parts thickness point for fixed-point thickness, collecting a large amount of data, preparing for anti-corrosion; Second, monitoring the change of the corrosion process and corrosion of the occurrence and development, in accordance with the deployment of anti-corrosion additives optimization process, based on the monitoring, to prevent corrosion as the goal, instant response, slow down the corrosion, extend the operating cycle; Third, master the equipment running status, a detailed understanding of the each pipe, the pipe bending parts, size head, valve, pump wall thickness thinning in areas such as the import and export situation, found that the potential safety hazard, in this early warning and alarm, to predict maintenance and avoid safety accidents; The fourth, through a large number of monitoring, analysis model is set up, on a regular basis to evaluate corrosion and corrosion prediction of corrosion problems in management; Fifth, automation, intelligence, scientific management, equipment corrosion improve production management level.