Linings, Immersion, and Buried Service Coatings

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The Linings, Immersion, and Buried Service Coatings Technical Community of Interest is a group of people (both AMPP members and nonmembers) who have come together for the purpose of furthering a common cause by sharing wisdom, knowledge, information, and/or data for coatings utilized in immersed or buried service areas.
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AMPP SP21473 In-Situ Cleaning and Internal Coating of Steel Pipelines via Pigging

  • 1.  AMPP SP21473 In-Situ Cleaning and Internal Coating of Steel Pipelines via Pigging

    Posted 09-12-2022 04:35 PM
    All,

    I volunteered to take a look at this balloted document & see if I could update it to reflect the negative ballots.  To my understanding this went to ballot in 2017, so its been a while.

    I need some input from people who have actually applied coatings to the interior of pipelines via pigs. 

    Some example specific questions I have are:

    • Is it common practice to do a degreasing step before acid cleaning?
    • How is the pH of the used acid measured in the field? (The document refers to titration, but that seems high level to what I expect is done in the field.)
    • "Following the phosphoric run a water solution shall be run to balance the pH to acceptable levels." What is an acceptable level?

    If you have experience in this space & are willing to help, please reply directly to me at krista.l.heidersbach@p66.com. No one likes unnecessary emails cluttering their inbox.  

    Krista

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    Krista Heidersbach
    Phillips 66
    Houston TX
    +18327654423
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