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Drilling Fluid Concepts - 38 FM5 Operator’s Manual
Mixtures
CMW
Mixtures
Bentonite does not mix well in water containing polymer. To use both, mix bentonite first, then add polymer.
When adding other products follow the order listed below.
General mixing order
1. Soda ash
2. Bentonite
3. Polymer
4. Con-Det
Bore-Gel contains premixed bentonite, polymer, and soda ash. Follow guidelines below to ensure proper
drilling fluid viscosity for expected drilling conditions.
NOTICE:
• If chemicals are added in the wrong order, they will not mix properly and will form clumps.
• If tank contains bentonite/polymer mix and more drilling fluid is needed, completely empty tank and
start with fresh water before mixing another batch.
Conditions Amount to Use
normal drilling 15 lb/100 gal 7 kg/380 L
sand or gravel up to 45 lb/100 gal up to 21 kg/380 L
rock up to 50 lb/100 gal up to 23 kg/380