Oil & Gas Innovation OGI Autumn 2019 | Page 46

PROCESSING Enhancing Oil and Gas Equipment Through Engineering Polymers and Material Selection When considering the arduous characteristics of the oil and gas environment, the use of Nylacast’s engineered products and materials technology is proven to greatly enhance the performance, efficiency and safety of many applications from subsea pipelines and tiebacks through to christmas trees, bend restrictors and buoyancy elements, to name but a few. O ften used in the development of new applications and equipment, Nylacast’s materials technology is renowned to replace traditional materials used within industry, such as steel, iron and bronze. The use of engineering polymers allows for many advantages including high dimensional stability and low weight (almost 1/7th the weight of steel). Engineering polymers are also highly resistant to wear and abrasion, in addition to having a high chemical and corrosion resistance, particularly suitable for the subsea environment. Furthermore, Engineering Polymers offer the quality of self-lubrication and a very low co-efficient of friction, resulting in both smoother, longer running components and applications along with reduced or eliminated maintenance needs and costs. The word “Polymer” has conflicting perceptions in different areas and industries of the world. In some regions it is perceived as being a pioneering material used within safety critical and value adding applications, in other regions it is stereotyped as a plastic; mechanically inferior Typical ROV components developed from engineering polymers. materials used for high volume, low grade items. In fact both perceptions are correct due to the fact that the word Polymer is very generic; there are thousands of different grades and types of polymers which fall under different groups, from semi-crystalline commodity thermoplastics through to amorphous high performance thermoplastics. The value a material can bring is dependent on what you require it to do. Specifically related to the oil & gas environment there is a considerable number of applications and components traditionally manufactured from metals such as steel, which are today manufactured from engineered polymers. This stretches from subsea pipe centralizers and bundle spacers through to flexible riser protectors and J Tube seals. Polymers are proven to add value through many methods ranging from their low weight and noise dampening qualities, through to having corrosion and chemical resistance and being available in high visibility colours. However there are areas of this environment still using traditional materials, which may meet basic application requirements, but lack in delivering significant performance and efficiency advantages at the same time. Nylacast engineered products. Nylacast work closely with customers across the industry to understand the end use and application requirements before providing material selection advice. A key element