Mainland Resources, Inc.(fka MNLU)

[choctaw 02]

ElHeffy,
Your posts about the combination of HP,HT,CO2 and Water are accurate. It is a combination that makes carbon steel pipe look like a board infested with termites, the only difference is it round.
In similar offshore applications the use of Duplex and Super Duplex steels are common. They are stocked in Tube Supply warehouses but not in the amount required for this project. It is common to go directly to the pipe mill for a "mill run" on large orders of a certain size and steel grade.
The H2S is not as big of an issue. All steel materials have to be ordered to meet the requirements of NACE MR 0175.