Scale dissolver:
In production tubing I flow line, acids are normally used to remove calcium carbonate. For barium sulphate, sequestrants (Scale Dissolvers) must be used.
Acids:
Depending of the steel quality the acid and inhibitor that effectively removes the carbonate scale, but at the same time shows acceptable corrosivity against the steel quality must be defined and blended.
Examples of acids are: hydrochloric acid, phosphoric acid, nitric acid or citric acid. Process specific corrosion inhibitors are required.
Sequestrants:
Are normally used to remove/dissolve sulphate scale.The chemicals are often based on EDTA or its homologs.They do not release gas or give a noticeable exothermicreaction. These are more generic.
In production tubing I flow line, acids are normally used to remove calcium carbonate. For barium sulphate, sequestrants (Scale Dissolvers) must be used.
Acids:
Depending of the steel quality the acid and inhibitor that effectively removes the carbonate scale, but at the same time shows acceptable corrosivity against the steel quality must be defined and blended.
Examples of acids are: hydrochloric acid, phosphoric acid, nitric acid or citric acid. Process specific corrosion inhibitors are required.
Sequestrants:
Are normally used to remove/dissolve sulphate scale.The chemicals are often based on EDTA or its homologs.They do not release gas or give a noticeable exothermicreaction. These are more generic.
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