Compared to onshore oil and gas extraction, the marine environment has violent ocean currents, significant changes in sea surface temperature and pressure with depth, and different seabed rock layers. Marine oil and gas also have higher levels of H2S, CO2, and Cl-, and the seabed hosts complex microorganisms with strong chemical and microbial corrosion capabilities.
In this demanding environment, duplex tubes and nickel alloy tubes are essential due to their comprehensive resistance to all forms of corrosion, high mechanical strength, durability under extreme conditions, and resistance to microbial corrosion. These qualities ensure they can withstand the harsh and variable conditions of the marine environment, providing reliable and long-lasting performance.
Therefore, special steel materials such as stainless steel and corrosion-resistant alloys for offshore oil and gas exploration platforms generally require high corrosion resistance, high strength, high toughness, and high wear resistance. A large number of super stainless steel and corrosion-resistant alloy materials are used in the drilling, production, processing, and transportation of foreign advanced offshore oil and gas resources.