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Many pipelines within water and wastewater treatment plants that were constructed within the last 50 years are nearing the end of their service lives. Owners have invested in condition assessments to help them make the difficult decision to repair or replace these pipelines.
Many pipelines within water and wastewater treatment plants that were constructed within the last 50 years are nearing the end of their service lives. Owners have invested in condition assessments to help them make the difficult decision to repair or replace these pipelines. There are many types of condition assessment methods that can be used to determine the existing condition however, this paper will discuss a data-driven approach. Rehabilitation of the pipelines with protective coatings can also be challenging due to limited access and limited construction schedules. Important factors to consider when selecting protective coatings based on case histories are discussed.
Development of new oil and gas fields is likely to involve sour reserves to an increasing degree. Sourproduction often brings about difficulties in terms of asset integrity, related particularly to corrosionmitigation. Employing corrosion resistant alloys implies a considerable escalation in investment costs. On this basis the use of carbon steel and CO2/H2S corrosion inhibition remains a highly desirableoption.
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External corrosion on offshore O&G platforms is one of the biggest threats to asset integrity and its management is a large operational expense. Many operators now implement risk-based assessment (RBA) programs where all equipment is assessed periodically with the aim to reduce operational costs while maintaining integrity. Regulatory codes for offshore platforms in the GoM require a visual inspection of all pressure equipment and piping every five-years. In practice, this can equate to approximately 20% of equipment being inspected per year on a large-sized offshore platform (i.e., a topside weight of around 10,000 tons), with a rolling five-year inspection plan to balance the inspection workload evenly through time.
A vessel docked for maintenance is a vessel out of service. For military forces, this significantly affects the readiness of that force, its ability to respond quickly and appropriately to a developing situation. It is for this reason that the United States Navy continues to search for and invest in innovations that improve maintenance turn-around times as well as innovations that keep vessels in service for longer periods of time. In large-scale construction and manufacturing industries such as shipbuilding and naval maintenance, coating removal is an essential but time-consuming process required for constructing and maintaining vessels and other structures.