Pipelines and storage tanks are susceptible to corrosion due to bacteria and oxygen. Bacterial populations in source waters and stagnant waters as well as create bio films that attach to pipelines and storage tank walls. Sessile biofilms may contain acid producing bacteria (APB) or sulfate reducing bacteria (SRB). SRBs can generate hydrogen sulfide that will react with iron to form iron sulfide. Before placing pipelines and storage tanks out of service. It is important to choose chemicals that can prevent oxygen and acid gas corrosion and keep microbial populations in control.

In this paper, laboratory data on the use of chemicals in long duration tests simulating pipeline hydrotest conditions are provided. Procedures to preserve flowlines and storage tanks with waters of different salinities are presented. Examples of successful preservation of several pipelines are provided for several years that demonstrate successful preservation with the use of these chemicals

Subject
Preservation, Water, Cylinders, Corrosion rate, Pipelines, Iron, Bottles, Oxygen scavengers, Bacteria, Corrosion inhibitors, Storage tanks, Oxygen, Biocides
Keywords:
Pipelines, storage tanks, corrosion, acid producing bacteria, sulfate reducing bacteria, hydrogen sulfide, iron sulfide, oxygen corrosion, acid gas corrosion
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2021
Association for Materials Protection and Performance (AMPP)
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