We describe the advancement of an activity-based quantitative polymerase chain reaction (qPCR) assay which can distinguish live from dead corrosion influencing microorganisms in oil and gas pipeline environments. We discuss the limitations and possible future optimization methods for Propidium monazide-qPCR techniques in the industry.
Due to the elevated temperatures and chemical composition of hydrothermal fluids, service conditions in geothermal facilities can be extreme in terms of corrosion. This evaluation of corrosion behavior of duplex steel S31803 (318LN, X2CrNiMoN22-5-3, 1.4462) was conducted by electrochemical measurements and exposure tests.
A laboratory study was performed by exposing seven candidate heat exchanger alloys to simulated 2 (sCO2) Brayton power cycles. The alloys, consisting of fineirtriaitilcly s 3te.6e%ls ,O austenitic stainless steels, and nickel-base alloys, were exposed to impure CO2 containing 2 and 5.3% H2O at a constant pressure of 200 bar.