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粘土预水化是泥浆配制中一个值得重视的问题。粘土预水化的过程，实际上是一个粘土颗粒表面，先进行阳离子交换，后与水发生物理和化学反应的过程。因而，粘土矿物阳离子交换容量的大小，反映出粘土的水化能力。水化能力大，则其胶体分散稳定性好，粘度高。粘土（除钠膨胀土及其它碱性粘土外）用于配制钻探泥浆，均需加入一定量的纯碱及其它可提供钠离子的磷酸盐类，并加入适量清水，预先闷发存放，或是加碱后即进行搅拌，而不加入其它处理剂。这个过
Pre-hydration of clay is a problem worth paying attention to in slurry preparation. The process of pre-hydration of clay is actually a clay particle surface, the first cation exchange, physical and chemical reaction with water after the process. Thus, the size of the cation exchange capacity of clay minerals, reflecting the hydration capacity of clay. Hydration capacity, the colloidal dispersion stability, high viscosity. Clay (except for sodium expansive soil and other alkaline clay) is used to prepare drilling mud, are required to add a certain amount of soda ash and other sodium ions can provide phosphate, and add the right amount of water, pre-muffled storage, or add The base is agitated without addition of other treating agents. This too