Tackling Hydrate Blockage with Twin-Screw Multiphase Pumps

Hydrate blockages, also known as methane ice, occur when water and gas coalesce at certain temperatures and pressures, forming ice crystals that can ultimately solidify and block pipeline flow. This phenomenon can happen at temperatures as high as 5°c and pressures as low as 250 PSIG, and can be an issue in both surface and subsea flow lines, especially in colder environments.

Traditionally, operators have relied on chemical injections, like methanol or MEG, to dissolve these blockages. However, this method can be costly and complex. Enter the twin-screw multiphase pump—a game-changing solution in flow assurance.

These pumps mitigate hydrate blockages by lowering the flow line pressure below the hydrate formation point. Even a modest pressure reduction can break up hydrates, allowing the pump to handle hydrate slosh and draw in warmer flow to reestablish production. Extensive tests at universities and research organizations have demonstrated the pump's effectiveness to mitigate flow assurance issues from hydrate formation.

By using twin-screw multiphase pumps, operators can not only clear blockages and reestablish flow but also significantly reduce the reliance on expensive chemical additives.

Discover how this innovative technology can enhance your operations and save costs. Visit us at the Turbomachinery & Pump Symposia at the George R. Brown Convention Center in Houston, TX, August 20-22, at Leistritz booth 2835 to learn more!

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