• Reducing weight and preventing corrosion are major concerns for offshore operators. As offshore structures have grown in size and complexity, so too has their weight increased, which can lead to a host of problems. Corrosion is also extremely dangerous, particularly in offshore environments, where seawater causes rapid erosion of metal and protective coatings. To address the industry’s need for a solution, NOV has championed a range of fiberglass solutions for use on offshore platforms. 
    A major success with fiberglass solutions came from NOV’s work on BP’s state-of-the-art redevelopment phase of the Clair Ridge platform. Engineers from Pipex px®, a part of the Fiber Glass Systems business unit, worked with BP to develop a plan to address weight concerns and susceptibility to corrosion. NOV installed approximately 9,843 ft (3000 m) of Bondstrand™ glass-reinforced epoxy (GRE) pipe systems throughout the platform, as well as almost 29,528 ft (9000 m) of phenolic fiberglass-reinforced polymer (FRP) grating. Various other composite structures were also custom designed for the platform, and 2.6 miles (4.2 km) of MARRS™ NORSOK-compliant handrail systems were installed.
    NOV also assisted BP with the design and build of advanced composite seawater reverse osmosis (SWRO) pressure vessels. BP had committed to a delivery schedule for the SWRO pressure vessels and needed a supplier who could successfully manufacture 290 vessels to extremely stringent tolerances within a short timeframe. Using unique CNC machines, NOV completed the manufacture and testing of all composite pressure vessels in just two and a half months.
    The result of NOV’s involvement in the project was a 700-tonne weight saving and confidence that the components would not be affected by corrosion. To read the full story about this milestone project, read our feature article from the November edition of Oilfield Technology here.


    Published Date: 2017-11-14
    Source: National Oilwell Varco