What is the purpose of drilling bentonite?

Bentonite serves several purposes in the drilling industry. Widely used in drilling operations, bentonite possesses high viscosity and gel-forming properties. It suspends drill cuttings in the drilling mud, preventing settling within the wellbore and thus avoiding the jamming of the drill bit.

Furthermore, bentonite reduces the sliding speed of formation cuttings within the drilling mud, ensuring effective wellbore cleaning. Its high swelling capacity helps in forming a strong and smooth wall cake along the wellbore, enhancing the stability and longevity of the well.
Additionally, thanks to its lubricating properties, bentonite effectively lubricates the drill string, drill bit, and wellbore, facilitating smooth drilling operations. By preventing the ingress of gases and fluids from formations, bentonite enhances operational safety and also helps prevent corrosion in the drill string and wellbore.
When these characteristics are combined, bentonite becomes an essential material for ensuring reliability and efficiency in drilling operations.

Techical Specifications of Drilling Bentonite

Properties Value
Viscosity (600 Rpm) >30 Cp
YP/PV <3
Filtrate Volume (Filtration) <15 ml
Amount of Moisture Max. 12%
73 µm >90%
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