{"id":5776,"date":"2021-10-04T15:13:43","date_gmt":"2021-10-04T14:13:43","guid":{"rendered":"https:\/\/www.sealforlife.com\/?p=5776"},"modified":"2022-09-07T15:30:51","modified_gmt":"2022-09-07T14:30:51","slug":"a-look-at-pipeline-coatings-cathodic-protection-and-hdd","status":"publish","type":"post","link":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/","title":{"rendered":"A look at pipeline coatings, cathodic protection and HDD"},"content":{"rendered":"

Pipeline coatings and cathodic protection systems in horizontal directional drilling (HDD) pipeline installations.\u00a0 <\/strong><\/p>\n

A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.\u00a0 This blog post is the first in a series of posts that will look at the effect that HDD installations have on the performance of pipeline coatings and cathodic protection systems.<\/p>\n

With very few exceptions, all metals must be refined and processed from their natural state to become usable materials.\u00a0 Iron ores, for example, are rocks and minerals rich in iron oxide mined commercially and converted into various types of iron through several different refinement processes.\u00a0 The most common process is smelting iron ore to produce pig iron.\u00a0 Pig iron, with very high carbon content, is a very brittle material and will typically require further processing.\u00a0 Processing pig iron by reducing its carbon content and adding elements such as manganese or nickel will produce usable, refined steel alloys suitable for a plethora of applications.<\/p>\n

Corrosion is the natural process of converting the refined metal back into its more chemically stable form.\u00a0 During the corrosion process, the refined metal deteriorates due to an oxidation-reduction reaction with its environment.\u00a0 Almost all forms of corrosion occur through the action of the electrochemical or corrosion cell.\u00a0 The elements common to all corrosion cells are an anode where oxidation and metal loss occur, a cathode where reduction and protective effects occur, metallic and electrolytic paths between the anode and cathode metals, and a potential difference that drives the cell.\u00a0 Corrosion can occur either when two different types of metals have physical or electrical contact with each other and are immersed in a common electrolyte, or when the same metal is exposed to an electrolyte with different concentrations.\u00a0 This type of corrosion is called galvanic corrosion and is common to many structures including cars, storage tanks, and oil & gas pipelines.<\/p>\n

In the case of oil & gas pipelines, where the metal type is consistent across the length of the structure, certain sections of the structure will still be anodic or slightly more electrically negative than other sections.\u00a0 Current will flow from the anodic section, through an electrolyte, to the more electrically positive cathodic section.\u00a0 Corrosion occurs at the anode where the current leaves the structure, but it does not occur at the cathode; therefore, structures do not simultaneously corrode but instead begin in spots or sections. Eventually, corrosion progresses throughout the structure as the electrochemical reaction migrates and moves.\u00a0 The electrolyte element of the corrosion cell is an electrically conducting solution that allows current to flow, in most cases this is water.\u00a0 For oil & gas pipelines the electrolyte is typically the moisture in the soil or atmosphere, or in the case of offshore pipelines, seawater.<\/p>\n

\"\"<\/p>\n

So how do you stop corrosion?<\/p>\n

Basically, it\u2019s eliminating one of the elements of the corrosion cell.\u00a0 For oil & gas pipelines there are two main approaches, the primary approach is to remove the electrolytic pathway between anodic and cathodic sections of the pipe by applying a barrier or coating onto the metal surface, stopping the current flow.\u00a0 Coatings are considered the first line of defence against pipeline corrosion.\u00a0 The secondary approach and second line of defence for preventing pipeline corrosion is applying a cathodic protection system.\u00a0 Cathodic protection introduces an anode external to the pipeline structure, allowing the entire pipeline structure to behave as a cathode and preventing corrosion from occurring.<\/p>\n

Selecting the right pipeline coating and designing a sufficient cathodic protection system for pipeline installations, specifically HDD, can be an arduous task.\u00a0 This blog series will look at how effective each corrosion prevention method is for an HDD installation.\u00a0 Up next, what is a corrosion protection system and how does it work?<\/p>\n

 <\/p>\n

Garrett Oortwyn, P.Eng.<\/strong>
\nProduct Manager – Mechanical Protection & Directional Drilling Systems<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Pipeline coatings and cathodic protection systems in horizontal directional drilling (HDD) pipeline installations.\u00a0 A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.\u00a0 This blog post is the first in a series of posts that will look at the effect that … Continued<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7],"tags":[],"acf":[],"yoast_head":"\nA look at pipeline coatings, cathodic protection and HDD - Seal For Life<\/title>\n<meta name=\"description\" content=\"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A look at pipeline coatings, cathodic protection and HDD\" \/>\n<meta property=\"og:description\" content=\"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/\" \/>\n<meta property=\"og:site_name\" content=\"Seal For Life\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-04T14:13:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-07T14:30:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2022\/05\/DSC08233-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1439\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"fishtank\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"A look at pipeline coatings, cathodic protection and HDD\" \/>\n<meta name=\"twitter:description\" content=\"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2022\/05\/DSC08233-scaled.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"fishtank\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/\",\"url\":\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/\",\"name\":\"A look at pipeline coatings, cathodic protection and HDD - Seal For Life\",\"isPartOf\":{\"@id\":\"https:\/\/www.sealforlife.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2021\/10\/Garret-Blog-Post-1-image-768x328.png\",\"datePublished\":\"2021-10-04T14:13:43+00:00\",\"dateModified\":\"2022-09-07T14:30:51+00:00\",\"author\":{\"@id\":\"https:\/\/www.sealforlife.com\/#\/schema\/person\/d267710136789591f875659591caf01c\"},\"description\":\"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#primaryimage\",\"url\":\"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2021\/10\/Garret-Blog-Post-1-image.png\",\"contentUrl\":\"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2021\/10\/Garret-Blog-Post-1-image.png\",\"width\":1394,\"height\":596},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.sealforlife.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A look at pipeline coatings, cathodic protection and HDD\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.sealforlife.com\/#website\",\"url\":\"https:\/\/www.sealforlife.com\/\",\"name\":\"Seal For Life\",\"description\":\"Protecting the future\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.sealforlife.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.sealforlife.com\/#\/schema\/person\/d267710136789591f875659591caf01c\",\"name\":\"fishtank\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.sealforlife.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/69c53429906309c9a779a78e05761ec2?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/69c53429906309c9a779a78e05761ec2?s=96&d=mm&r=g\",\"caption\":\"fishtank\"},\"sameAs\":[\"https:\/\/www.sealforlife.com\/wp\"],\"url\":\"https:\/\/www.sealforlife.com\/press-center\/author\/fishtank\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"A look at pipeline coatings, cathodic protection and HDD - Seal For Life","description":"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/","og_locale":"en_GB","og_type":"article","og_title":"A look at pipeline coatings, cathodic protection and HDD","og_description":"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.","og_url":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/","og_site_name":"Seal For Life","article_published_time":"2021-10-04T14:13:43+00:00","article_modified_time":"2022-09-07T14:30:51+00:00","og_image":[{"width":2560,"height":1439,"url":"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2022\/05\/DSC08233-scaled.jpg","type":"image\/jpeg"}],"author":"fishtank","twitter_card":"summary_large_image","twitter_title":"A look at pipeline coatings, cathodic protection and HDD","twitter_description":"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.","twitter_image":"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2022\/05\/DSC08233-scaled.jpg","twitter_misc":{"Written by":"fishtank","Estimated reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/","url":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/","name":"A look at pipeline coatings, cathodic protection and HDD - Seal For Life","isPartOf":{"@id":"https:\/\/www.sealforlife.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#primaryimage"},"image":{"@id":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#primaryimage"},"thumbnailUrl":"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2021\/10\/Garret-Blog-Post-1-image-768x328.png","datePublished":"2021-10-04T14:13:43+00:00","dateModified":"2022-09-07T14:30:51+00:00","author":{"@id":"https:\/\/www.sealforlife.com\/#\/schema\/person\/d267710136789591f875659591caf01c"},"description":"A complex topic that\u2019s challenging to discuss without first starting at the very beginning, the reason for pipeline coatings and cathodic protection systems: corrosion.","breadcrumb":{"@id":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#primaryimage","url":"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2021\/10\/Garret-Blog-Post-1-image.png","contentUrl":"https:\/\/www.sealforlife.com\/wp-content\/uploads\/2021\/10\/Garret-Blog-Post-1-image.png","width":1394,"height":596},{"@type":"BreadcrumbList","@id":"https:\/\/www.sealforlife.com\/press-center\/a-look-at-pipeline-coatings-cathodic-protection-and-hdd\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.sealforlife.com\/"},{"@type":"ListItem","position":2,"name":"A look at pipeline coatings, cathodic protection and HDD"}]},{"@type":"WebSite","@id":"https:\/\/www.sealforlife.com\/#website","url":"https:\/\/www.sealforlife.com\/","name":"Seal For Life","description":"Protecting the future","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sealforlife.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/www.sealforlife.com\/#\/schema\/person\/d267710136789591f875659591caf01c","name":"fishtank","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.sealforlife.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/69c53429906309c9a779a78e05761ec2?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/69c53429906309c9a779a78e05761ec2?s=96&d=mm&r=g","caption":"fishtank"},"sameAs":["https:\/\/www.sealforlife.com\/wp"],"url":"https:\/\/www.sealforlife.com\/press-center\/author\/fishtank\/"}]}},"_links":{"self":[{"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/posts\/5776"}],"collection":[{"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/comments?post=5776"}],"version-history":[{"count":4,"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/posts\/5776\/revisions"}],"predecessor-version":[{"id":6805,"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/posts\/5776\/revisions\/6805"}],"wp:attachment":[{"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/media?parent=5776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/categories?post=5776"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sealforlife.com\/wp-json\/wp\/v2\/tags?post=5776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}