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The In-Situ internal coating is a viable alternative for pipeline rehabilitation of corrode pipe and cost effective compared to replacement with new pipelines.
The In-Situ internal coating is a viable alternative for pipeline rehabilitation of corrode pipe and cost effective compared to replacement with new pipelines. The coating effectively controls internal pipeline corrosion through the application of multiple high build liquid epoxy coating that coats the entire internal surface of the pipeline including girth welds, corrosion pits, channels, corrosion lakes or general corrosion and other internal pipe imperfections to delay leaks and extend the remaining pipe life. The coating process can be applied to pipeline internal with diameters between 6 to 30 inches and over lengths up to 25km in one run. A field development technology trial was commissioned by some major oil companies in the Middle East to test the viability of using an internal liquid epoxy coating method to control corrosion in trunklines and flowlines that had suffered from both; pitting and general corrosion sited in Arabian Gulf oil fields. The process used involved a technique that has over 30 years of track records; with no leak reported up to date, across a wide range of geographies, industries and leading global corporate counterparties in Oil & Gas industry and Chemical industry as well. It has been concluded that the In-Situ coating method is a potential alternative of new pipe replacement; due to its low-cost application in the field, effective method for avoiding high cost of pipe replacement with new pipe, reduce the use of Inhibitors, extend the existed pipeline service life and provides solution for girth weld coating in the field using liquid coating. Consequently, the In-Situ coating is a viable and reliable alternative for pipelines rehabilitations.
It is fair to say that maintenance in the worldwide oil and gas industry has changed dramatically over the past ten years. Facility owners are more than ever looking to reduce shutdown times, to improve plant efficiency and to extend plant lifetimes. With this comes the increased industry understanding about corrosion under insulation (CUI) with its deleterious impact and the ongoing desire for pragmatic high performance and cost-effective coating solutions.
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Changing conditions in the Oil and Gas industry are yielding greater corrosion protection challenges to the owners and operators of refineries, terminals, pipelines, railcars etc. Internal lining schemes which have traditionally been used for the storage and transport of crude oil and refined fuels may no longer be appropriate. The aggressive nature of crude oil (higher temperatures and more sour nature), high purity refined products and the increased use of biofuels globally necessitate the demand for better linings and more certain test results.
In the oil and gas industry there is information on current fundamental training for contractors and certification programs that cover industry standards and practical aspects of selecting, specifying and using coatings safely, effectively and economically to protect structures in harsh oil and gas atmospheric environments. These certification programs are for both inspectors and contractors that provide quality assurance/quality control on industrial coating projects. Once implemented with a properly well-written specification for a specific substrate (steel, metal, previously coated), ensures a quality project for the owner.