Reply to thread

Message

<blockquote data-quote="Migrator Man" data-source="post: 134996" data-attributes="member: 2369">I'm not trying to argue either I just don't think anything you are saying makes sense. All bore holes are filled its drill mud that is obviously not dry. That wet mud is not bad for the pipeline as it help hold the hole open on the pull through. Pipeline laid in wet environments is a non issue as the cathodic and coating prevent corrosion. When you case the pipe the carrier pipe cannot touch the casing. When they touch the pipes are shorted and the carrier pipe does not get cathodic protection and only protects the casing. They don't use casings anymore because shorts to the casing were big integrity issues.Water environments without any cathodic protection is enemy number 1. Water attracts salts and causes accelerated corrosion. Annular spaces on old pipelines are normally filled with thick grease and sometimes vapor phase inhibitor if there is corrosion issues. Casings are BAD and are asking for a leak, why take a higher risk of failure?</blockquote>

[QUOTE="Migrator Man, post: 134996, member: 2369"] I'm not trying to argue either I just don't think anything you are saying makes sense. All bore holes are filled its drill mud that is obviously not dry. That wet mud is not bad for the pipeline as it help hold the hole open on the pull through. Pipeline laid in wet environments is a non issue as the cathodic and coating prevent corrosion. When you case the pipe the carrier pipe cannot touch the casing. When they touch the pipes are shorted and the carrier pipe does not get cathodic protection and only protects the casing. They don't use casings anymore because shorts to the casing were big integrity issues. Water environments without any cathodic protection is enemy number 1. Water attracts salts and causes accelerated corrosion. Annular spaces on old pipelines are normally filled with thick grease and sometimes vapor phase inhibitor if there is corrosion issues. Casings are BAD and are asking for a leak, why take a higher risk of failure? [/QUOTE]

Verification

What is the most common fish caught on this site?

Reply to thread

Recent Posts

Friends of NDA