Advanced Drilling specializes in Rotary water well drilling for residential or commercial wells. Our equipment, knowledge and qualified personnel allow us to give our customers the best service possible in Centralia, WA and surrounding areas.
The broken pieces (cuttings) are flushed upward and out of the hole by circulating a drilling fluid (sometimes called drilling mud) down through the drill pipe and back to the surface. This drilling fluid also serves to cool and lubricate the drill bit, and by stabilizing the wall of the hole, it can prevent possible cave-in of unstable sands or crumbly rock before the well casing or well screen is installed.
As the drill intersects water bearing rock formations water will flow into the hole. We carefully monitor the depth of water “strikes” and keep a note of the formations in which they occur. The top of the well is usually lined with a well casing.
Since the diameter of the drilled hole is usually an inch or two wider than the diameter of the casing, the space between the two (called the annulus) has to be filled with grout to prevent the chance of polluted surface water from migrating downward along the outside of the casing where it might contaminate the aquifer.
Ensuring your family’s long-term health and satisfaction is the reason we do what we do.
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