Magma m-pipe global solutions
OE European Editor Elaine Maslin reviews m-pipe® developments in global markets – as published in Offshore Engineer September 2017
Magma Global has signed an agreement with Odebrecht Oil & Gas to supply m‐pipe for the CMHR (Composite Multi-Bore Hybrid Riser) solution for future deployment in deepwater pre-salt projects in Brazil.
Magma’s patented m-pipe technology was chosen because it will enable the operator to significantly reduce the scale, complexity and cost of the subsea architecture needed for these challenging deep-water developments, specifically around high CO2 levels, coupled with demanding fatigue performance requirements.
The agreement takes Magma’s m-pipe another step forward, after progressing from use in downlines, to hydrocarbon jumpers, including high sour-gas content jumpers in deep water, offshore Italy, for Eni, and sour service jumpers for use in the Middle East. Magma also recently became the first firm to complete qualification of composite pipe to DNVGL-RP-F119, which will also cover their use offshore deepwater Brazil.
An ongoing project with BP and Subsea 7 is also qualifying the pipe for larger diameter use in more demanding situations, with use for water injection due to be qualified by the end of this year and then hydrocarbon service during the middle of next year.
Charles Tavner, Magma COO, said: “All the qualification done with the BP Subsea 7 program means we are effectively ready to go. Clearly, everyone is working towards risers. Oil operators recognize there’s a big win when it comes to deepwater risers and for the first time we can now see the steps towards big volumes in these projects.
“What is attractive is the combination of light weight, lack of corrosion, resistance to CO2 and being able to build much lower cost riser towers, and not need the buoyancy and or have some of the manufacturing challenges associated with traditional riser towers.” Traditional riser towers need buoyancy and assembly and tow out has to be done carefully to minimize fatigue.
For Odebrecht, Magma will make 6-8in riser towers for up to 10,000 psi service. They will be manufactured in one piece through Magma’s additive manufacturing process. Using m-pipe will also mean the upper and lower riser parts will also be able to be simplified, says Tavner.
Magma’s m-pipe has been used for water injection since 2012. Statoil has used the product for high-temperature (150 deg c) hydrocarbon service since 2015. The product is now in use for high sour gas in deepwater for Eni offshore Italy and in the Middle East.