PRODUCTION • PROCESSING • HANDLING
Hoses connected to CALM buoy configuration
RESEARCH, TESTING AND DEVELOPMENT In all scenarios, testing is required to qualify each solution according to different standards. Trelleborg’s R&D team routinely becomes involved in the earliest stage of oil & gas projects to cooperate with its customers in defining the most appropriate technical solutions for the targeted application and design life. Traditionally, R&D departments may not have been expected to play such
Vertical connection of floating hoses
an active role. However, it is becoming increasingly vital for these teams to consult on each project to ensure truly customised solutions. In configurations such as conventional
buoy mooring (CBM) in water of depths up to 20m, OCIMF tests based on GMPHOM 2009 guidelines will be required – the standard issued by oil companies to provide technical requirements to ensure the satisfactory performance of flexible bonded hoses
commonly used at offshore moorings. Hydrodynamic analysis is conducted as necessary, taking into account how a qualified hose design will function in conjunction with its specific properties, performance expectations and the environment within which it will function. In more challenging conditions,
particularly in deep water, or in use with challenging configurations such as the Chinese Lantern, GMPHOM 2009 guidelines are not always sufficient to guarantee an understanding of the capability of a hose system to withstand the static and dynamic loads that occur on offshore terminals. In this instance, the API Spec 17K (specification for bonded flexible pipe) is used, as it considers requirements regarding design methodology, characterisation of the material, and hydrodynamic and fatigue analysis. In these instances, high fidelity finite element models (FEM) for each specific hose construction are created, enabling a precise prediction of hose behaviour, including specific characteristics and limitations. Following this, the fluid
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