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08126 CIS Study and Interference Root Cause Analysis of an Early External Corrosion Leakage of a Production Gas/Pipeline in the Burgos Gasfields in Northeast Mexico

Picture for 08126 CIS Study and Interference Root Cause Analysis of an Early External Corrosion Leakage of a Pro
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Product Number: 51300-08126-SG
ISBN: 08126 2008 CP
Author: Jorge Canto, Lorenzo Gomez, Norberto Pesce, Hector C. Albaya, Jose Padilla, and Hernan Rivera
Publication Date: 2008
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The gas production in Northern Mexico has experienced significant growth in the last years. The fields are now exploited by a number of gas producers increasing the complexity of the Cathodic Protection(CP) systems. We report a case of study of a one year old 10” pipeline segment which was damaged by interference current discharge causing a significant number of gas leaks, and over 14 deep corrosion pits. The pipeline was fully removed and reconstructed along the discharge zone of over 2 miles. A CIS study was performed on the pipeline to find a zone of current pick up nearby an anode bed in service to other pipelines. This anode bed caused the pick up of current for over a year, and the CIS study also allowed to reveal the discharge zone.
The gas production in Northern Mexico has experienced significant growth in the last years. The fields are now exploited by a number of gas producers increasing the complexity of the Cathodic Protection(CP) systems. We report a case of study of a one year old 10” pipeline segment which was damaged by interference current discharge causing a significant number of gas leaks, and over 14 deep corrosion pits. The pipeline was fully removed and reconstructed along the discharge zone of over 2 miles. A CIS study was performed on the pipeline to find a zone of current pick up nearby an anode bed in service to other pipelines. This anode bed caused the pick up of current for over a year, and the CIS study also allowed to reveal the discharge zone.
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