TPi May 2018

OCTG, gas & pipel ine products

Deployment and testing confirm durability of m-pipe for subsea operations

urgently needs, but it’s now emerged as the first F119-certified TCP, and that means it’s a proven solution in subsea pipelines.” Magma m-pipe is a carbon fibre and Victrex PEEK thermoplastic compos- ite pipe manufactured using a fully automated robotic 3D laser print process. Engineering and structural design result in a pipe that has been shown to reduce risks and costs for risers, jump- ers, flowlines and downlines in a wide range of subsea project applications. m-pipe can be used at depths down to 10,000 feet and withstand pressures of up to 103 MPa (15 ksi). F119 comprises more than 50 standardised test methods, which together subject a TCP to a rigorous investigation, throughout the design process, to ascertain failure modes, critical properties and the limits of its constituent materials. Each stage of the formation of the TCP is tested independently, from the properties of its components to full TCP construction, to ascertain the link between materials data and overall TCP design. Victrex helped facilitate the materials testing, to accelerate the qualification of m-pipe, by contributing the use of its property database specifically targeting oil and gas applications and covering a wide range of mechanical, physical and chemical resistance properties. The company also provided design and evaluation of novel test methods to demonstrate the compliance of Victrex PEEK with the material qualification sections of the DNV GL document, and materials testing both within Victrex’s own laboratories and in a number of outside accredited test labs.

covers m-pipe for dynamic surface to seabed applications. Successful certification with DNV GL’s third-party verification highlights the durability of m-pipe and its constituent materials. “F119 is the most comprehensive procedure that exists today for determining the long-term reliability and safety of a TCP for oil and gas,” explained Dr David Charlesworth, head of engineering at Magma Global. Dr Geoff Small, energy market technology manager at Victrex, commented, “Victrex and Magma have always worked side by side on m-pipe, with Victrex contributing its decades of accumulated know-how, and that’s the way we rose to the F119 challenge. “Magma’s m-pipe is not simply an innovative high-performance corrosion- free pipe that the oil and gas industry

Magma Global m-pipe ® , based on Victrex PEEK thermoplastic composite, has achieved the first qualification for a subsea pipe product under DNVGL- RP-F119 for Thermoplastic Composite Pipe (TCP). Global quality assurance and risk management company DNV GL defined the F119 recommended practice (RP) for use with pipelines in offshore oil and gas operations. There is a growing interest in thermoplastic composites for subsea applications, due to their corrosion resistance and ability to handle sour service and many of the aggressive chemicals used in the oil and gas industry. Recent deployments for m-pipe include a 2.5 km flowline development by Tullow Oil in West Africa. Following an extensive testing programme, the product qualification

Magma m-pipe is a corrosion-free pipe made with Victrex PEEK thermoplastic composite

Victrex plc – UK www.victrex.com

Magma Global Ltd – UK sales@magmaglobal.com www.magmaglobal.com

Photo credit: © Magma Global Limited

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