Drilling water well

Wells in this area vary from 40 feet to 200 feet depending on location. A six or 7 inch hole is drilled. The drilling rig pumps drill fluid down through a bit which rotates dislodging soil which rises to the surface moving into the mud pit. A drilling fluid ( containing bentonite) to provide better lifting ability than water and to stabilize the bore hole in unstable soils. Used for soils like sand to get the soil into the mud pit.
A water truck provides drilling water. Once the hole is down to proper depth, determined by depth of wells in area plus evaluation of material coming out of hole, 4 , 5, or 6 inch plastic casing in placed in hole. The lower 20 feet is slited about width of hacksaw blade. Joints glued together. Water then pumped through casing by rig , as water comes up through hole around outside of casing, small diameter gravel is placed around outside of casing. This flushes dirt from hole. When completed, a bucket is dropped to bottom of hole ( bucket Is a three inch pipe by 20 feet with valve in bottom) and pulled back to surface , dumped several times until water clears up. Pump is installed and run for several hours until well water clears up.


Rig has mud pump, Kelly, sliding table-- used for connecting drill stem, winch for lifting drill stem, casing, pump pipe, etc.
A Kelly is a junction device through which drill water flows from mud pump, and drill stem is connected that rotates during the drill process. It goes up & down during the process, during drilling ( going in hole), going up --coming out of hole.

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