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51317--9642-Ageing Subsea Pipelines External Corrosion Management

This paper reviews strategy for handling of life extension on old (17,000 km >35 years old, 55,000 > 25 years old) pipelines from preliminary assessment, through repair execution and post repair surveillance. Useful tips for avoiding common pitfalls are also presented.

Product Number: 51317--9642-SG
ISBN: 9642 2017 CP
Author: James Britton
Publication Date: 2017
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According to Offshore Data Services there are approximately 17000 kilometers of offshore pipelines globally installed before 1981 (35 Years Ago) and before 1991 (25 Years Ago) the number is close to 55000 Kms. While a good number of these lines have been abandoned others are still in service and are now at or 10 years or more beyond their original design life. This paper reviews proven strategy for cost effective reliable handling of life extension on these old pipelines from preliminary assessment through repair execution and post repair surveillance. Useful tips for avoiding common pitfalls are also presented.KEYWORDS: Offshore Cathodic Protection Retrofit Life Extension Offshore Pipeline Pipeline Inspection Seawater Corrosion IMR Pipeline Clamp Pipeline ROV Survey

Key words: Offshore Cathodic Protection, Retrofit, Life Extension, Offshore Pipeline, Pipeline Inspection, Seawater Corrosion, IMR, Pipeline Clamp, Pipeline ROV Survey.

According to Offshore Data Services there are approximately 17000 kilometers of offshore pipelines globally installed before 1981 (35 Years Ago) and before 1991 (25 Years Ago) the number is close to 55000 Kms. While a good number of these lines have been abandoned others are still in service and are now at or 10 years or more beyond their original design life. This paper reviews proven strategy for cost effective reliable handling of life extension on these old pipelines from preliminary assessment through repair execution and post repair surveillance. Useful tips for avoiding common pitfalls are also presented.KEYWORDS: Offshore Cathodic Protection Retrofit Life Extension Offshore Pipeline Pipeline Inspection Seawater Corrosion IMR Pipeline Clamp Pipeline ROV Survey

Key words: Offshore Cathodic Protection, Retrofit, Life Extension, Offshore Pipeline, Pipeline Inspection, Seawater Corrosion, IMR, Pipeline Clamp, Pipeline ROV Survey.

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