C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/08 (2006.01) B23K 9/173 (2006.01) B23K 35/30 (2006.01) B60K 15/03 (2006.01) C22C 38/00 (2006.01) C22C 38/04 (2006.01) C22C 38/06 (2006.01) C22C 38/12 (2006.01) C22C 38/14 (2006.01) C22C 38/16 (2006.01) F17C 1/00 (2006.01) F17C 1/14 (2006.01) F17C 3/00 (2006.01) F17C 3/02 (2006.01) F17C 7/00 (2006.01) F17C 7/02 (2006.01) F17C 13/00 (2006.01) F17D 1/04 (2006.01) F17D 1/08 (2006.01) F25B 19/00 (2006.01) F25D 23/00 (2006.01)
Patent
CA 2292736
Pipeline distribution network systems are provided for transporting pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123 ~C (-190 ~F) to about -62 ~C (-80 ~F). Pipes and other components of the pipeline distribution network systems are constructed from an ultra-high strength, low alloy steel containing less than 9 wt.% nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73 ~C (-100 ~F) environ.
Cette invention se rapporte à des systèmes de réseaux de distribution par pipelines servant au transport de gaz naturel liquéfié pressurisé à une pression comprise entre 1035 kPa (150 psia) environ et 7590 kPa (1100 psia) environ et à une température comprise entre -123 ·C (-190 ·F) environ et -62 ·C (-80 ·F) environ. Les conduits et autres composants de ces systèmes de réseaux de distribution par pipelines sont construits à partir d'un acier faiblement allié à ultra-haute résistance, contenant moins de 9 % en poids de nickel et possédant une résistance à la traction supérieure à 830 MPa (120 ksi) et une température de transition de rupture ductile à rupture fragile (DBTT) inférieure à -73 ·C (-100 ·F) environ.
Bowen Ronald R.
Minta Moses
Rigby James R.
Borden Ladner Gervais Llp
Exxon Production Research Company
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