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What is Carbonate Contamination in Drilling Fluids about?
Carbonate and bicarbonate ion contamination can gradually increase gel strengths and yield point in drilling fluids, which is often misdiagnosed as increased solids. This type of contamination comes from sources like CO2 from formations or air, thermal degradation of additives, or overtreatment with soda ash or sodium bicarbonate. Applying costly thinners has little effect for this problem compared to increased solids.
- Author
- Audrey Nguyen
- Language
- EN