The continued shift of exploration and production to deep water fields will require the industry to develop alternative pipe solutions to cope with the challenging demands of these exploration regions. Because of the complexity of exploration conditions in deep water fields, e.g. high pressures, low temperature and sour reservoirs, higher grades and heavier wall thickness in combination with low temperature toughness and suitability for sour service are required. The Vallourec&Mannesmann Tubes’s alloying concept for line pipe steels based on low carbon concept [1] was extended to grades X70 and X80 with wall thicknesses up to 75mm. In this paper the latest results on industrial studies on high strength heavy-wall steels manufactured by seamless hot rolling and subsequent quench and temper treatment are presented. The work is a part of the development program for high performance heavy wall seamless pipes for special applications such as J-lay collars, buckle arrestors and risers. Mechanical properties, advanced metallographic examinations, results of the sour service resistance and weldability are reported.
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2010 8th International Pipeline Conference
September 27–October 1, 2010
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute and the Pipeline Division
ISBN:
978-0-7918-4421-2
PROCEEDINGS PAPER
Heavy Wall Seamless Line Pipe X70–X80 for Sour Service Applications Available to Purchase
Joachim Konrad,
Joachim Konrad
Salzgitter Mannesmann Forschung GmbH, Duisburg, Germany
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Diana Toma,
Diana Toma
Vallourec & Mannesmann Tubes Deutschland GmbH, Du¨sseldorf, Germany
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Volker Rohden,
Volker Rohden
Vallourec & Mannesmann Tubes Deutschland GmbH, Du¨sseldorf, Germany
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Guido Kubla
Guido Kubla
Vallourec & Mannesmann Tubes Deutschland GmbH, Du¨sseldorf, Germany
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Joachim Konrad
Salzgitter Mannesmann Forschung GmbH, Duisburg, Germany
Diana Toma
Vallourec & Mannesmann Tubes Deutschland GmbH, Du¨sseldorf, Germany
Volker Rohden
Vallourec & Mannesmann Tubes Deutschland GmbH, Du¨sseldorf, Germany
Guido Kubla
Vallourec & Mannesmann Tubes Deutschland GmbH, Du¨sseldorf, Germany
Paper No:
IPC2010-31237, pp. 423-427; 5 pages
Published Online:
April 4, 2011
Citation
Konrad, J, Toma, D, Rohden, V, & Kubla, G. "Heavy Wall Seamless Line Pipe X70–X80 for Sour Service Applications." Proceedings of the 2010 8th International Pipeline Conference. 2010 8th International Pipeline Conference, Volume 2. Calgary, Alberta, Canada. September 27–October 1, 2010. pp. 423-427. ASME. https://doi.org/10.1115/IPC2010-31237
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