用亚甲基蓝法测定膨润土含量的干扰因素分析

The Determination of the Disturbance Affecting the Bentonite Content Measurement using MBT Method

对亚甲基蓝法测定膨润土含量的干扰因素进行了分析,并分别讨论了固相粒径、固相种类、pH值、增黏剂、抑制剂及其加量、分散时间和温度对膨润土含量测定值的影响,提出了相应的建议,得出的结论对于今后相关技术标准的修订具有较好的参考意义。

The disturbance affecting the measurement of bentonite content of drilling fluids using MBT method was analyzed,and the factors affecting the measurement of bentonite content were discussed.These factors include particle size,type of solids,pH value,viscosifier used,inhibitors used,time of dispersion,and temperature at which the measurement was done.Suggestions were presented to correct the measurement errors.The conclusion obtained is of help in revise the relevant standards.