Modifying high-pressure hightemperature stirred autoclave for corrosion inhibitor evaluation
Abstract
A high-pressure high-temperature stirred autoclave (HPHTSA) is modified based on the rotary cage autoclave (RCA) and stirred autoclave (SA) to evaluate corrosion inhibitors in the laboratory. This autoclave can simulate operational conditions in oil and gas pipelines, enduring high-temperature high-pressure conditions, and withstanding corrosive agents such as CO2, H2O, and H2S. It is equipped with a stirring shaft and blades to ensure uniformity of the solution in the reaction vessel. Importantly, it features a sample mounting system with a rotating cage structure consisting of two tiers. A water-dispersible and oil-soluble corrosion inhibitor was evaluated using the high-pressure high-temperature stirred autoclave under both static and dynamic (rotating) conditions. At dynamic conditions, the testing system simulates gas and liquid environments, similar to the conditions at the top and bottom of oil and gas transportation pipelines.
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