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Testing Confirms Durability of M-Pipe for Subsea Oil & Gas Operations

30 January 2018

Testing Confirms Durability of M-Pipe for Subsea Oil & Gas Operations

Magma and Victrex are hosting a joint webinar on how advanced materials created the world’s first DNV GL RP F119 qualified thermoplastic composite pipe (TCP).

Magma Global m-pipe, based on VICTREX PEEK thermoplastic composite, has recently achieved 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 its F119 recommended practice (RP) for use with pipelines in offshore oil and gas (O&G) operations. Following an extensive testing programme, the product qualification 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. 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. The upcoming webinar will drill into the qualification and use of advanced materials role in this. Recent deployments for m-pipe include a 2.5 km (1.6 mile) flowline development by Tullow Oil in West Africa.

"F119 is the most comprehensive procedure that exists today for determining the long-term reliability and safety of a TCP for O&G," explains Dr David Charlesworth, Head of Engineering at Magma Global.

In the webinar on 13 February 2018, he will detail how m-pipe achieved the qualification and also cover the importance of the TCP in the O&G sector, its minimum bend radius (MBR), and how the design of m-pipe aids transport, deployment and connections in subsea applications. Dr Geoff Small, Energy Market Technology Manager at Victrex, will focus on the advanced materials used in the making of m-pipe, the various testing carried out and the advantages in both performance and qualification which these materials bring.

"Magma's m-pipe is not simply an innovative high-performance corrosion-free pipe that the O&G industry urgently needs, but it's now emerged as the first F119-certified TCP, and that means it's a proven solution in subsea pipelines," says Small.

Magma m-pipe is a high-performance carbon fibre and VICTREX PEEK thermoplastic composite pipe manufactured using a fully automated robotic 3D laser print process. The high specification pipe that has been shown to reduce risks and costs for risers, jumpers, flowlines and downlines in a wide range of subsea project applications. These properties make m-pipe, which can be used at depths down to 3.4 m (10,000 ft) and withstand pressures of up to 103 MPa (15 ksi), a cost-effective alternative to traditional steel and non-bonded flexible pipe.

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 following:

  • use of its extensive property database specifically targeting O&G applications and covering a wide range of mechanical, physical and chemical resistance properties;
  • design and evaluation of novel test methods to demonstrate the compliance of VICTREX PEEK with the material qualification sections of the DNV GL document;
  • materials testing both within Victrex’s own laboratories and a number of outside accredited test labs.

The use of m-pipe can reduce both risks and costs for offshore operators. It requires minimum maintenance and, since it is not subject to corrosion, has a longer lifetime than steel.

“Offshore O&G operations are now encountering extremely difficult subsea environments at greater depths,” Charlesworth states. “The pressure is relentless and old-style steel isn't up to the job. An outstanding composite pipe, such as m-pipe, is what's needed, delivering the strength of steel but not the inevitable corrosion."

The webinar, How Advanced Materials created the World’s First DNV GL RP F119 Qualified Thermoplastic Composite Pipe, is scheduled for 13 February 2018 at 10 am Eastern Standard Time. Visit the registration page on: https://smithersinformation.webex.com/smithersinformation/onstage/g.php?MTID=ebc27bc309236dc0bb42f880221eb8495


Photo provided by Victrex





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