Successful Field Application of an Inhibitor Concentration Detection System in Optimising the Kinetic Hydrate Inhibitor (KHI) Injection Rates and Reducing the Risks Associated with Hydrate Blockage

Currently, hydrate inhibitors are injected at the pipelines upstream based on the calculated/measured hydrate phase<br>boundary, water cut, worst pressure and temperature conditions, and the amount of inhibitor lost to non-aqueous phases.<br>In general, no means of controlling and monitoring are available along the pipeline and/or downstream to assess the<br>degree of inhibition. Often high safety margins are considered to accommodate for the uncertainties in the above<br>parameters and to ensure gas hydrate risks are eliminated. However, despite these efforts hydrates do still form and this<br>can result in considerable economical and safety concerns.