Best wishes for the recovery of Billy Yow.
On June 20 Billy was drilling a well (not at Gray Owl) and a high pressure hose broke hitting him in the face and knocking him off the machine so he hit the back of his head on a rock. He was in critical care for three days, regained consciousness, recognized his wife, and was upgraded to "serious". It was great fun talking to him, learning a tremendous amount, watching him solve difficult problems and enjoying his fine sense of humor. I hope very much that he has a full recovery.
Drilling the wells at Gray Owl
Drilling the wells was a huge project. There are 4 of the 400' deep geothermal wells, and one 200' water well. We expected it to take 4 days, but it took about 2 weeks. The problem was that between 80 and 120 feet there was a boulder field with the boulders packed in clay. During the drilling the air pressure that runs the hammer drill at the drill head forces out any water in the hole. We were blowing out about 100 gallons per minute and this was washing out the clay from around the rocks. When the rocks shifted they collapsed the well casing on one of the wells and we had to abandon that well. This also produced a vast quantity of mud that collected in the silt fences and we spent all day cleaning out the mud trying to stay ahead of the drilling.
Geothermal wells have to be packed with a clay/sand mixture and instead of the planned 4000 lbs we needed 40,000 lbs to fill all the voids around the boulders that was washed away.
When it came time to drill the water well we moved about as far away from the geothermal wells as we could and we had no problem. We have 30 gal/minute of excellent water - tastes like bottled water.
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It is time to begin the well drilling for water as well as four 400 ft deep geothermal wells. |
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After the hole is drilled the geothermal pipe need to go in it.
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