Mixtures, General mixing order, Fm25 operator’s manual – Ditch Witch FM25 User Manual
Page 41
Drilling Fluid Concepts - 40
FM25 Operator’s Manual
Mixtures
CMW
Mixtures
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: Bentonite does not mix well in water containing polymer. To use both, mix bentonite first, then
add polymer.
•
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