Alan Watts, the British-American philosopher, is quoted as saying, “Muddy water is best cleared by leaving it alone.” I’m sure in philosophy that is very deep and true; in water well drilling, not so much. In fact, let’s coin a new quote, “Muddy water on a gravel pack or screen should not set.” I know — very deep right?
What is the best way to reduce remnant drilling mud from the well before installing the pumping system? The grouting process will displace the bentonite drilling fluid introduced during the drilling process. The heavier grout (~9.4 pounds/gallon for 20% solid) forces the lighter drilling fluid (~9 lbs/gal) to rise and exit the hole. The grout fills the void between the casing and the borehole.