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粘土阳离子交换量(CEC)是用来判断地层粘土的成份和导电性能,为测井解释提供依据。本文叙述了用EDTA络合滴定测定阳离子交换量的方法,试验结果表明,此方法稳定,经实际应用,效果良好。
Clay cation exchange capacity (CEC) is used to determine the composition and conductivity of the clay, providing the basis for logging interpretation. This paper describes the determination of cation exchange capacity with EDTA complexometric titration. The experimental results show that this method is stable and practical.