In order to satisfy the increasing demand of oil and gas, the frontline of exploration is continuously pushed to ever deeper water. Furthermore, to be able to maintain production under harsh weather conditions, as for example in the North Sea, the operation window must be as wide as possible. Being a non-permanently installed riser, a WOR (Work Over Riser) is subjected to many make-up and break-out operations in its service life, which puts high requirements on the assembly performance. All these facts put heavy restrains on the design of a WOR system, for example high strength, low weight and NACE compliance (sour service) requirements. In order to enable FMC Kongsberg to develop a WOR that fulfills the above requirements, TenarisTamsa developed a high strength heavy wall upset pipe in grade 90 ksi sour service (SS). This paper gives an insight into the metallurgical challenges to develop the upset pipe and the design process to develop WOR joints.
Development of a new generation of welded high strength heavy wall upset work over riser 90KSI for sour service application
Entwicklung einer neuen Generation von geschweißten hochfesten dickwandigen Service-Steigrohren 90 ksi für den Sauergaseinsatz
2008
12 Seiten, 15 Bilder, 2 Tabellen, 14 Quellen
Aufsatz (Konferenz)
Englisch
PURE (premium upset riser ends): Expanding the possibilities of SCR application
Tema Archiv | 2010
|Heavy wall UOE SAWL pipes for ultra deep water and sour service application
Tema Archiv | 2014
|Performance of welded high-strength low-alloy steels in sour environments
Tema Archiv | 2003
|Characteristic of spiral welded pipe API 5L - X60 for sour service pipeline
Tema Archiv | 2010
|