Oil And Gas

As technology progresses in the Oil and Gas Industry, the demand for corrosive resistant duplex products becomes higher. The further the depth of exploration for offshore oil, the greater pressure is put on duplex and super duplex stainless steel pipes installed in harsh corrosive environments.   Today’s domestic reservoirs produce higher quantities and in consequence, the longevity of underground wells can be impaired by high levels of corrosive agents that collect within them. As an oilfield grows older, water to oil ratios in the final product increase by 90% or more.

Benefits of Duplex and Super Duplex Pipes and Accessories

As technological advancements enable the manufacture of gas and oil industry components to adapt to highly corrosive conditions, they are imperative to the economic viability of oil and gas production. It is therefore essential that the correct alloys are selected to avoid component failure in any application. The main pipes used in the offshore Oil and Gas Industry are Duplex 2205 (22% Chromium, 5% Nickel) and 2507 (25% Chromium, 7% Nickel); and Super Duplex 2507 which has higher corrosion resistance. Duplex steel is also highly resistant to chloride-induced stress corrosion cracking and has the strength to resist pressure at extreme depths.

Super Duplex 2507

Petro Canada installed a combination of Super Duplex 2507 and Duplex 2205 pipes at their Newfoundland oil field and chose these specific products because they can withstand high levels of salt without corroding; have high tensile strength, outstanding pitting, cracking and impact resistance, minimal thermal expansion and high conductivity.