RE: Magictrades22 Jan 2021 16:42
Isn't it the case that the top layers in WA are basically sand/soft material, so easy, and therefore cheap, to drill through? The deeper the layers go, the more solid the material to be drilled through, and therefore exponentially more expensive to drill, with infinitely more problems the drilling can hit (literally). I don't believe you can correlate/match up, eg, 2 shallow drills = 1 deep drill.
Put me straight, experts.