March 2015, Vol. 242, No. 3

TechNotes

Cathodic Shielding Effects Tested: PipePillo vs. Foam

Perhaps one of the most important safe guards put in place to maintain the long-term integrity of buried pipelines is a cathodic protection system. Cathodic protection (CP) is an anti- corrosion technique used to prevent the corrosion of metals such as steel and iron in electrolytically conducting environments such as seawater and soils containing water. In the case of buried pipelines, CP is achieved when one or more anodes (positive electrodes) discharge electric current to protect the pipeline, which acts as a cathode (negative electrode). If the CP system is electrically cut-off (shielded) from the pipeline where a holiday (a hole or gap in the pipeline coating) has occurred, then the

Log in to view this article.

Not Yet A Subscriber? Here are Your Options.

1) Start a FREE TRIAL SUBSCRIPTION and gain access to all articles in the current issue of Pipeline & Gas Journal magazine.

2) SUBSCRIBE to Pipeline & Gas Journal magazine in print or digital format and gain ACCESS to the current issue as well as to 3 articles from the PGJ archives per month. $199 for an annual subscription*.

3) Start a FULL ACCESS PLAN SUBSCRIPTION and regain ACCESS to this article, the current issue, all past issues in the PGJ Archive, access to all special reports, special focus supplements and more. $1,395 for an annual subscription.  For information about group rates or multi-year terms, contact J'Nette Davis-Nichols at Jnette.Davis-Nichols@GulfEnergyInfo.com or +1 713.520.4426*.

 

 

*Access will be granted the next business day.

Related Articles

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}