Sea Water/ Flocculated Bentonite Slugs Mud

Sea Water/ Flocculated Bentonite Slugs Mud

Sea Water/ Bentonite is a simple mud system for top hole drilling. Viscous bentonite slugs pumped regularly for good hole cleaning. Returns are not be taken to surface during conductor pipe cleaning/ under-reaming; ports in the conductor pipe can be used to minimise the hydrostatic head.

These sections can be successfully and economically drilled with sea water, slugging the hole periodically with 5 to 10 m3 of high viscosity fluid.

The use of flocculated bentonite slugs is recommended to provide the viscosity necessary to ensure that the hole . . .