Lean Duplex Stainless Steel Flexible Flowlines for the Kikeh Offshore Oil Field

摘要

A new Lean Duplex Stainless Steel S32003 was used in the flexible flowlines for the Kikeh deepwater subsea oil and gas project. The S32003 carcass was selected due to its combination of corrosion resistance and strength. More than 15 km of unbonded flexible pipe with S32003 carcass has already been installed. This material met or exceeded 316L stainless steel properties in all qualification testing. S32003 is considered an improved alternative to 316L carcass in unbonded flexible pipe, and an economic alternative to 2205 unbonded flexible pipe in some field conditions.