Mapping Corrosion Activities Of Various Type Of Acidic Solution In A Pipe Using Ultrasonic Testing

Norwahidah, Abd Wahid (2008) Mapping Corrosion Activities Of Various Type Of Acidic Solution In A Pipe Using Ultrasonic Testing. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Steel pipelines are by far the safest method of transporting oil and gas products. However, corrosion in the pipelines is always occurs and becomes a main problem. Construction or replacement costs are now of the order of RM1 000 000 per km. Given the safety and environmental concerns regarding possible pipeline rupture or leakage and the high costs of repair or replacement, accurate nondestructive inspection of these pipelines is becoming essential. In this study, Ultrasonic Testing is used to observe the corrosion activities in the pipeline models. There are three pipeline models which each of the pipeline model contains different types of acidic solution. The acidic solution is Hydrochloric Acid, Nitric Acid and Acetic Acid with concentration 70% acids and 30% distilled water. This report contains six main chapters; Introduction, Literature Review, Methodology, Result and Discussion, Conclusion and Recommendation. In Introduction Chapter, there is a brief background of the study, problem statement, problem identification, objectives and scope of the study. In Literature Review Chapter, it consist a brief background of pipelines and pipelines corrosion failures. Besides, it also contains a few previous studies about pipelines corrosion inspections. At the end of this chapter, there are included about Ultrasonic Testing and MATLAB Programming description. Chapter Three is about Methodology of this study. It contains the steps and procedures of the experiment. The important steps are preparation of the specimens/pipeline models, preparation of the acidic solution and determination of the pipeline models inspection points. Then, Chapter Four is Results and Discussion Chapter which it consist all the observation, data recorded from the experiment, MATLAB Programming, B-Scan results display and results discussion. Chapter Five is Conclusion which included the achievement of the study. Lastly, this report is ended with the Recommendation for the future study.

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