Drilling fluid, Guidelines, Polymer – Ditch Witch JT30AT User Manual
Page 138: Jt30 /jt30 all terrain operator’s manual

JT30 /JT30 All Terrain Operator’s Manual
Systems and Equipment - 138
Drilling Fluid
CMW
Drilling Fluid
For productive drilling and equipment protection, use these recommended Baroid
®
products, available
from your Ditch Witch dealer.
•
Soda ash
•
Quik-Gel™ dry powder bentonite (p/n 259-804)
•
E-Z Mud™ liquid polymer (p/n 259-805)
•
Liqui-Trol™ liquid polymer suspension (p/n 259-808)
•
Quik-Trol™ dry powder polymer (p/n 259-809)
•
Bore-Gel™ drilling fluid (p/n 259-807)
•
Con-Det™ water-soluble cleaning solution (p/n 259-810)
Guidelines
Match drilling fluid to soil type. This chart is meant as a guideline only. See your local Ditch Witch dealer for
soil conditions and drilling fluid recommendations for your area.
Polymer
This drilling fluid additive provides excellent lubrication and increases viscosity in average soils and heavy
clay. In swelling clay, polymer can reduce swelling that traps pipe in the bore.
There are two types of polymer:
•
long chain such as Baroid EZ-Mud
•
medium chain such as Baroid Quik-Trol
Soil type
Drilling fluid recommendation
smooth, flowing sand
bentonite or Bore-Gel + medium chain polymer
coarse sand or light soil
bentonite or Bore-Gel
heavy clay
long chain polymer + Con-Det
swelling clay
long chain polymer + Con-Det
rock
Bore-Gel