Linepipe Steel With Alternative Carbon Steel Compositions For Enhanced Sulfide Stress Cracking Resistance
AssigneeExxonMobil Technology and Engineering Company
InventorsNeeraj THIRUMALAI, Hyun Jo JUN, Adnan OZEKCIN, Fang CAO
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Abstract
The present disclosure relates to methods and compositions of linepipe steels that transport one or both of crude oil and natural gas. More particularly, the present disclosure relates sulfide stress cracking resistance of carbon steels for use as linepipe in transporting crude oil and natural gas by alternative carbon steel compositions comprising relatively low-manganese contents and/or low-carbon contents, alone or in combination with hydrogen trapping precipitates.
Claims29
A carbon steel composition comprising:
- manganese in an amount of equal to less than about 1.6% by weight or less than about 1.3% by weight of the carbon steel composition.
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A carbon steel composition comprising:
- carbon in an amount of equal to or less than about 0.025% by weight of the carbon steel composition.
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Dependencies are inferred from the claim text.