During oil and gas operation, water is used for many operation processes, which make water contain various contaminants depending on the sources and processes. Sour water strippers (SWS) are critical units to remove ammonia (NH3) and hydrogen sulfide (H2S) from sour water streams to condition the waters for the discharge or reuse. Different streams from various sources may induce different scale issues to cause operation productivity reduction and even equipment failure. The most common scales in sour water strippers are calcite, iron sulfite, silicates, etc. depending on the water chemistry of source streams.

This paper presents case histories of scale issues and treatment of sour water strippers with various source waters. For each case history, the specific inorganic scale problems and treatment strategies are discussed. Based on the lab testing and field application results, scale inhibitor treatment or even cleaning-up program are evaluated.

This paper provides valuable information on potential scale problems and treatment for sour water strippers with various water sources, and gives references or guideline for similar scale treatment.

Subject
Test methods, Water, Silicates, Scale inhibitors, Bottles, Dosages, Acidity, Sour water, Scale formation, Corrosion inhibitors, Scale, Brines, Deposit corrosion
Keywords:
Sour Water Strippers, Scale Treatment, Cleaning-up
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2022
Association for Materials Protection and Performance (AMPP)
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