Post by
Tk11455ok on May 20, 2024 11:12am
Quick ? for RetiredGeo
Dear RetiredGeo, If you have the time. Can you tap into an old drill hole and save time drilling to a deeper depth or does the drill have a tendency to skip out and start virgin drilling anyway. In other words, if any of the previous drill holes just happened to line up with a deep target, could they save time that way? Just thinking. Thank you
Tom K
Comment by
Retiredgeo on May 20, 2024 11:33am
If the old holes are cased, plugged and marked, and NFG holes probably all are, they can be deepened at a later date. Uncased holes through overburden will tend to collapse in on themselves. Unplugged holes will get full of ****. Unmarked holes are just write offs.