You can try it and see what happen's...I just hope you have enough Bentonite to bring the viscosity back to specifications to lift the shale and heavier cuttings from the bottom of the wellbore,and my question would be...Will the new type fluid circulate consistantly, and keep the mud pump pressure and flow characteristics stable during high temperature drilling,(+130F), or severe cold weather drilling,(-40F),... and can it resist freezing in SIBERIA'S EXTREME COLD temperatures, without having to use extra amount's of CAUSTIC SODA in the drilling fluid?