Enabling Subsea Produced Water Reinjection through In-line Water Treating and Monitoring Technologies for Deep Water Applications

ExxonMobil Upstream Research Company (EMURC) recently conducted a broad subsea technology development and qualification program which included subsea processing technologies. One specific focus was on development of in-line produced water de-oiling technology integrated with water quality monitoring sensors that can provide continuous measurements to monitor the level of oil and suspended solids content in produced water. Maintaining well injectivity in subsea processing applications in deep water requires liquid-liquid separation technologies capable of handling challenging water streams in terms of oil and solids content as well as subsea produced water quality monitoring (PWQM) technologies.