What's the use of bentonite in brick oil?
Bentonite is a basic raw material for slurry (the most commonly used drilling fluid), and bentonite has the characteristics of water swelling
And you can take in the process of drilling cuttings to the surface through the annular space in a wellbore when drilling, underground pressure, underground fluid may be poured out of the ground, called wells, possible serious blowout, adding mud weighting agent to suppress the blowout
The mud which has a certain viscosity and a certain viscosity can play a certain role in the drilling process
