(75a) Experimental Characterization of Surfactant Application in Gas Wells and in Presence of Water and Condensates
AIChE Annual Meeting
2019
2019 AIChE Annual Meeting
Upstream Engineering and Flow Assurance Forum
Fundamentals and Applications of Flow Assurance
Monday, November 11, 2019 - 8:00am to 8:15am
The study includes laboratory experiments, which are carried out with various surfactant types, changing surfactant concentrations, water/condensate volumetric fractions, and gas injection rates. Initially, all of the tested surfactants are characterized by static and dynamic surface tension measurements. Foam lift assessment is then completed using a state-of-art âLiquid Unloading Columnâ that serves as a replica for a gas well. Foam lift efficiency is determined by measuring the foam density, foam half-life, and unloaded liquid. The experiments are conducted at atmospheric conditions, and the visual observations are also recorded to better evaluate the changes in multiphase flow phenomena.
The outcome of this work sheds lights on the performance of a given surfactant type and composition in the presence of varying amounts of condensates. The findings of the research are intended to contribute as an operational guideline for the selection of surfactants/formulations to unload gas wells with varying water cuts.
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