Slug flow elimination in multiphase flow pipelines using multiple static mixers

A method for preventing adverse flow regimes of a multi-phase fluid from forming in a pipeline, the method comprising:

• determining, using a flow simulator, a number of locations for a plurality of static mixers, configured to be installed along a pipeline, and a distance between the plurality of static mixers;
• installing the plurality of static mixers along the pipeline at the number of locations spaced the distance apart wherein the plurality of static mixers each comprise an internal cylinder defining a central orifice, a plurality of inlet channels, and a plurality of outlet channels;
• adjusting the internal cylinder to change an angle of the plurality of inlet channels and the plurality of outlet channels to optimize a degree of mixing and a pressure loss;
• and
• flowing the multi-phase fluid through the pipeline wherein the multi-phase fluid enters each static mixer through the plurality of inlet channels;
• the multi-phase fluid is mixed in the central orifice to prevent formation of the adverse flow regimes;
• and the multi-phase fluid is expelled through the plurality of outlet channels.