Hostile subsea conditions pushing boundaries of HP/HT valves

摘要

Deep subsea wells are a hard target, with the high pressures and temperatures presenting a significant design and engineering challenge. Any well at a temperature above 150℃ (302℉) and 15,000 psi (1,034 bar) is defined as high-pressure/high-temperature (HP/HT), and all equipment used on the application -notably the valves - must be tested and rated to contain the produced fluids. Engineering subsea valves that need to be in service for two decades or more demands careful selection of materials, a high level of manufacturing precision, and comprehensive performance testing.