Why does the drilling fluid increase with the increase of the apparent viscosity of bentonite?
More bentonite, adsorption of water more, free water less, high viscosity; more bentonite, solid phase friction, and high viscosity;
The amount of bentonite is more than that of the soil. The strength, strength and viscosity of the soil increase. The above three aspects lead to the increase of the amount of bentonite and the increase of the viscosity of the drilling fluid.
