Li Zicheng, Zhang Xizhu. CONTAMINATION OF CARBONATE ION ON DRILLING FLUID AND ITS TREAT-MENT[J]. Oil Drilling & Production Technology, 1999, 21(6): 25-28. DOI: 10.3969/j.issn.1000-7393.1999.06.005
Citation: Li Zicheng, Zhang Xizhu. CONTAMINATION OF CARBONATE ION ON DRILLING FLUID AND ITS TREAT-MENT[J]. Oil Drilling & Production Technology, 1999, 21(6): 25-28. DOI: 10.3969/j.issn.1000-7393.1999.06.005
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CONTAMINATION OF CARBONATE ION ON DRILLING FLUID AND ITS TREAT-MENT

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  • This paper presents in detail the determination and concentration of carbonate ion, the determination on contamination degree of drilling fluid caused by carbonate ion, and chemical treatment principle. The reason of diluent failure to work is analyzed. Based on a case study and the optimized chemical formula, the contamination of carbonate ion on drilling fluid is removed. In conclusion, the paper makes a suggestion for matters needing attention in field operation.
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