{"id":10331,"date":"2020-07-01T12:49:21","date_gmt":"2020-07-01T10:49:21","guid":{"rendered":"https:\/\/www.pronal.com\/?post_type=projets&#038;p=10331"},"modified":"2020-07-01T12:49:21","modified_gmt":"2020-07-01T10:49:21","slug":"subsea-pipes-repaired-due-to-underwater-welding-habitat","status":"publish","type":"projets","link":"https:\/\/www.pronal.com\/en\/projects\/subsea-pipes-repaired-due-to-underwater-welding-habitat\/","title":{"rendered":"Subsea pipes repaired due to underwater welding habitat"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text css_animation=&#8221;left-to-right&#8221;]<\/p>\n<h2><span style=\"color: #00a7e1;\">Project&#8217;s requirements <\/span><\/h2>\n<p style=\"font-weight: 400;\"><a href=\"https:\/\/www.equinor.com\/\"><span style=\"color: #00a7e1;\">Equinor<\/span><\/a>, one of the major players in oil &amp; gas and renewables markets, has to modify some subsea pipes. For this project, <a href=\"https:\/\/www.equinor.com\/en\/what-we-do\/norwegian-continental-shelf-platforms\/heimdal.html\">called Heimdal<\/a>, two platforms are to be decommissioned and a bypass spool to be implemented between existing lines.<\/p>\n<p style=\"font-weight: 400;\">The first welding device was designed <span style=\"color: #00a7e1;\">25 years ago<\/span> and already used our flexible doors. It was time to replace them and enjoy some technical improvements.<\/p>\n<p style=\"font-weight: 400;\">Perfect sealing is the key to these underwater operations, so our products had to very accurate in terms of dimensions to be as close as possible to the pipe. If not, water would come in and no job could be carried out.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;2\/3&#8243;][vc_column_text css_animation=&#8221;right-to-left&#8221;]<\/p>\n<h2><span style=\"font-size: 18pt; color: #00a7e1;\">Pronal&#8217;s solution, flexible doors for underwater welding habitat<\/span><\/h2>\n<p style=\"font-weight: 400;\">Pronal has designed and manufactured two membranes:<\/p>\n<ul>\n<li style=\"font-weight: 400;\">the first one to be used on a 36&#8221; pipe<\/li>\n<li style=\"font-weight: 400;\">the second one to be used on a 32&#8221; ipe (on the opposite side).<\/li>\n<\/ul>\n<p>Those membranes make <a href=\"https:\/\/www.pronal.com\/en\/product\/inflatable-pipe-plugs\/mud-wiper-english\/\">the sealing<\/a> around the pipe. they are vulcanized in one operation and thus completely homogeneous. This manufacturing process makes <span style=\"color: #00a7e1;\">the product strong<\/span> and <span style=\"color: #00a7e1;\">reliable<\/span>.<\/p>\n<p>Because of the criticity of this product, testings are fundamental. Our customer shipped to our factory its test bench and a long batch of tests were done in-house. Quality tests went perfectly and the doors could then be installed in the habitat.<br \/>\n[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;10278&#8243; img_size=&#8221;large&#8221; css_animation=&#8221;top-to-bottom&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css_animation=&#8221;left-to-right&#8221;]<\/p>\n<h2><span style=\"color: #00a7e1;\">Why use flexible doors and not rigid doors? <\/span><\/h2>\n<p style=\"font-weight: 400;\">Using <span style=\"color: #00a7e1;\">flexible doors<\/span>, instead of rigid ones, <span style=\"color: #00a7e1;\">enables significant time savings<\/span>. Due to the hydraulic brackets, where the doors are installed, all the devices could <span style=\"color: #00a7e1;\">be run automatically<\/span>.<\/p>\n<p style=\"font-weight: 400;\"><span style=\"color: #00a7e1;\">No human actions are required<\/span> to obtain the sealing on the pipe, the inside room of the habitat is fully hermetic No matter how deep the pipe is, our door does the job on their own. Using rigid doors will necessarily require human action.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;10283&#8243; img_size=&#8221;large&#8221; css_animation=&#8221;top-to-bottom&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;10288&#8243; img_size=&#8221;large&#8221; css_animation=&#8221;top-to-bottom&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css_animation=&#8221;right-to-left&#8221;]<\/p>\n<h2><span style=\"color: #00a7e1;\">Conclusion<\/span><\/h2>\n<p style=\"font-weight: 400;\">Those welding habitats are now equipped with brand new flexible doors. The inner room of the habitat can be hermetically closed. Subsea jobs can be carried out safely.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Equinor use underwater habitats with flexible and automatic doors<\/p>\n","protected":false},"featured_media":10285,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"project_categories":[410,488],"class_list":["post-10331","projets","type-projets","status-publish","has-post-thumbnail","hentry","project_categories-to-clamp","project_categories-staunch"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Subsea pipes repaired due to underwater welding habitat - Pronal<\/title>\n<meta name=\"description\" content=\"Equinor and Technip Deepoceans PRS JV DA use underwater habitat with flexible and automatic doors to repair subsea pipes.\" \/>\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.pronal.com\/en\/projects\/subsea-pipes-repaired-due-to-underwater-welding-habitat\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Subsea pipes repaired due to underwater welding habitat - 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