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.


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