{"id":3476,"date":"2024-09-24T11:53:54","date_gmt":"2024-09-24T04:53:54","guid":{"rendered":"https:\/\/cladtek.com\/?p=3476"},"modified":"2026-01-26T16:21:30","modified_gmt":"2026-01-26T09:21:30","slug":"testes-em-escala-total-cra-mlp-aplicacoes-dutos-submarinos","status":"publish","type":"post","link":"https:\/\/cladtek.com\/pt\/publications\/testes-em-escala-total-cra-mlp-aplicacoes-dutos-submarinos\/","title":{"rendered":"Testes em escala real em tubos revestidos mecanicamente (MLP) de CRA para dutos submarinos"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-margin-top:24px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1289.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:0%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1 fusion-text-no-margin\" style=\"--awb-line-height:2;--awb-margin-bottom:25px;\"><p>A especifica\u00e7\u00e3o de materiais de liga resistente \u00e0 corros\u00e3o (CRA) para tubula\u00e7\u00f5es submarinas \u00e9 realmente crucial, principalmente quando se trata de ambientes em que o a\u00e7o carbono pode n\u00e3o ser uma op\u00e7\u00e3o vi\u00e1vel devido a restri\u00e7\u00f5es t\u00e9cnicas, operacionais ou econ\u00f4micas. A corros\u00e3o, exacerbada por altas temperaturas e press\u00f5es parciais elevadas de di\u00f3xido de carbono, continua sendo um desafio significativo em todos os setores do mundo. A presen\u00e7a de sulfeto de hidrog\u00eanio complica ainda mais a sele\u00e7\u00e3o de materiais de CRA adequados.<\/p>\n<\/div><div class=\"fusion-text fusion-text-2 fusion-text-no-margin\" style=\"--awb-line-height:2;--awb-margin-bottom:30px;\"><p><span style=\"background-color: rgba(255, 255, 255, 0); color: var(--awb-color6); font-family: var(--body_typography-font-family); font-size: var(--body_typography-font-size); font-style: var(--body_typography-font-style,normal); font-weight: var(--body_typography-font-weight); letter-spacing: var(--body_typography-letter-spacing);\">Entre os v\u00e1rios tipos de tubos submarinos de CRA, tr\u00eas s\u00e3o comumente usados: tubos de CRA s\u00f3lidos, tubos revestidos de CRA (metalurgicamente ligados) e tubos de CRA com revestimento de CRA. <a href=\"https:\/\/cladtek.com\/pt\/produtos\/tubo-revestido-mecanicamente-mlp\/\" target=\"_blank\" rel=\"noopener\">CRA Mechanically Lined Pipes (MLP)<\/a>. Entre elas, as CRA-MLPs s\u00e3o geralmente consideradas a op\u00e7\u00e3o mais econ\u00f4mica. Os CRA-MLPs s\u00e3o empregados no setor de petr\u00f3leo e g\u00e1s h\u00e1 mais de quatro d\u00e9cadas, fornecendo uma solu\u00e7\u00e3o confi\u00e1vel para o transporte de hidrocarbonetos corrosivos. Ao considerar os custos gerais do ciclo de vida, os CRA-MLPs frequentemente apresentam uma op\u00e7\u00e3o mais econ\u00f4mica em compara\u00e7\u00e3o com os tubos CRA revestidos e CRA s\u00f3lidos.<\/span><\/p>\n<\/div><div class=\"fusion-image-element\" style=\"--awb-margin-top:10px;--awb-margin-bottom:25px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\"fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"2560\" height=\"1791\" alt=\"Teste de resson\u00e2ncia de fadiga TWI\" title=\"Resson\u00e2ncia de fadiga\" src=\"https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-scaled.jpg\" data-orig-src=\"https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-scaled.jpg\" class=\"lazyload img-responsive wp-image-3478\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272560%27%20height%3D%271791%27%20viewBox%3D%270%200%202560%201791%27%3E%3Crect%20width%3D%272560%27%20height%3D%271791%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-200x140.jpg 200w, https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-400x280.jpg 400w, https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-600x420.jpg 600w, https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-800x560.jpg 800w, https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-1200x839.jpg 1200w, https:\/\/cladtek.com\/wp-content\/uploads\/2024\/09\/Fatigue-Resonance-scaled.jpg 2560w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 2560px\" \/><\/span><\/div><div class=\"fusion-text fusion-text-3\"><h2>Vantagens dos CRA-MLPs em compara\u00e7\u00e3o com os tubos revestidos com CRA:<\/h2>\n<ul>\n<li><strong>Ajuste aprimorado:<\/strong> As extremidades feitas sob medida dos CRA-MLPs resultam em maior capacidade de instala\u00e7\u00e3o e confiabilidade durante a constru\u00e7\u00e3o da tubula\u00e7\u00e3o.<\/li>\n<li><strong>Maior variedade de materiais de CRA:<\/strong> As CRA-MLPs oferecem uma sele\u00e7\u00e3o mais ampla de materiais de CRA, ao contr\u00e1rio das chapas cladeadas, que s\u00e3o limitadas pelos requisitos de tratamento t\u00e9rmico. O componente de a\u00e7o carbono nas MLPs tamb\u00e9m \u00e9 tratado termicamente de forma ideal.<\/li>\n<li><strong>Melhores rela\u00e7\u00f5es entre di\u00e2metro e espessura da parede:<\/strong> Os CRA-MLPs acomodam uma faixa mais ampla de propor\u00e7\u00f5es de di\u00e2metro para espessura da parede em compara\u00e7\u00e3o com os tubos revestidos com CRA, que s\u00e3o formados por meio de processos JCO\/UOE.<\/li>\n<li><strong>Redu\u00e7\u00e3o das emiss\u00f5es de CO2:<\/strong> A produ\u00e7\u00e3o de CRA-MLPs gera quase 50% menos emiss\u00f5es de CO2 em compara\u00e7\u00e3o com tubos similares revestidos com CRA, e os materiais s\u00e3o facilmente recicl\u00e1veis.<\/li>\n<li><strong>Prazos de entrega mais curtos:<\/strong> Normalmente, os CRA-MLPs t\u00eam prazos de entrega mais curtos do que os tubos de CRA revestidos ou de CRA s\u00f3lida.<\/li>\n<li><strong>Economia significativa de custos:<\/strong> As CRA-MLPs podem proporcionar uma economia de custo potencial de aproximadamente 40-50% em compara\u00e7\u00e3o com os tubos de CRA s\u00f3lidos.<\/li>\n<\/ul>\n<h2>Teste em escala real pela Cladtek<\/h2>\n<p>A Cladtek, reconhecida como a maior empresa de revestimento com solda de CRA do mundo e fornecedora l\u00edder global de CRA Mechanically Lined Pipe (MLP), realizou testes extensivos em CRA-MLPs para garantir seu desempenho em condi\u00e7\u00f5es reais. Em um teste not\u00e1vel, um CRA-MLP de 273,1 mm de di\u00e2metro externo com revestimento de 3 mm foi submetido a testes de resson\u00e2ncia de fadiga em escala real nas instala\u00e7\u00f5es da TWI.<\/p>\n<p>O teste foi projetado para reproduzir as tens\u00f5es sofridas pelo ponto triplo, uma \u00e1rea cr\u00edtica em MLPs, durante todo o ciclo de vida do tubo. Durante o processo de teste, foram realizadas inspe\u00e7\u00f5es peri\u00f3dicas para monitorar qualquer poss\u00edvel rachadura no revestimento antes que ele pudesse atingir o a\u00e7o de suporte.<\/p>\n<p>Esse teste ressalta a robustez e a confiabilidade dos CRA-MLPs em ambientes submarinos exigentes, destacando sua adequa\u00e7\u00e3o como uma alternativa econ\u00f4mica e ecol\u00f3gica aos tubos de CRA revestidos e s\u00f3lidos.<\/p>\n<\/div><div class=\"fusion-sharing-box fusion-sharing-box-1 boxed-icons has-taglines layout-floated layout-medium-floated layout-small-stacked\" style=\"background-color:rgba(255,255,255,0);padding:0;border-color:#cccccc;--awb-margin-bottom:70px;--awb-separator-border-color:#cccccc;--awb-separator-border-sizes:0px;--awb-layout:row;--awb-alignment-small:space-between;--awb-stacked-align-small:center;\" data-title=\"Full-Scale Testing on CRA Mechanically Lined Pipes (MLP) for Submarine Pipeline\" data-description=\"The specification of Corrosion-Resistant Alloy (CRA) materials for subsea pipelines is indeed crucial, particularly when dealing with environments where carbon steel may not be a viable option due to technical, operational, or economic constraints. Corrosion, exacerbated by high temperatures and elevated partial pressures of carbon dioxide, remains a significant challenge across industries worldwide. The presence\" data-link=\"https:\/\/cladtek.com\/pt\/publications\/testes-em-escala-total-cra-mlp-aplicacoes-dutos-submarinos\/\"><h4 class=\"tagline\" style=\"color:var(--awb-color8);\">Compartilhe este artigo nas m\u00eddias sociais:<\/h4><div class=\"fusion-social-networks sharingbox-shortcode-icon-wrapper sharingbox-shortcode-icon-wrapper-1 boxed-icons\"><span><a href=\"https:\/\/www.facebook.com\/sharer.php?u=https%3A%2F%2Fcladtek.com%2Fpt%2Fpublications%2Ftestes-em-escala-total-cra-mlp-aplicacoes-dutos-submarinos%2F&amp;t=Full-Scale%20Testing%20on%20CRA%20Mechanically%20Lined%20Pipes%20%28MLP%29%20for%20Submarine%20Pipeline\" target=\"_blank\" rel=\"noreferrer\" title=\"Facebook\" aria-label=\"Facebook\" data-placement=\"top\" data-toggle=\"tooltip\" data-title=\"Facebook\"><i class=\"fusion-social-network-icon fusion-tooltip fusion-facebook awb-icon-facebook\" style=\"color:#ffffff;background-color:#3b5998;border-color:#3b5998;border-radius:4px;\" 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