Bentonite Mud

Bentonite Mud

Bentonite based mud may be used to impart stability to boreholes through soft seabed sediments prior to running structural or conductor casing. 30-40ppb bentonite mud shall be used offshore to sweep top hole while drilling and to spot on bottom prior to running surface casing.

Bentonite Pre-hydration

1. Flush tank and lines with drill water.

2. Fill the surface tank to 75 %of capacity with drill water.

3. Check chloride concentration to ensure no sea water contamination. CHECK calcium and magnesium ion concentrations.

4. Add soda ash . . .

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