Remarks:
It functions as an inhibitor by coating or encapsulating formation & cuttings.
It also restricts the interaction of water Hydratable & dispersible shale’s.
It can be used as a flocculent in clear water drilling.
It also provides inhibition properties to fresh water, sea water and also in presence of calcium ions.
High viscosity of this drilling fluid helps in better removal of cuttings from bore hole.
It is resistant to bacterial fermentation
Stabilize water-sensitive formations, Reduce bit-balling.
Increase rheological properties of drilling fluids.
Provide mud lubricity in low pressure situations.
Flocculate drilled solids when used in low concentrations.
Enhance the yield of bentonite clays in low solids drilling systems.