This video shows you a CompactRotoSonic crawler drilling with 5,5" diameter till 42 meters in east germany (thuringen) for installation of amasond geothermal heat loop exchangers. the geology was dolomite rock layers mixed with overburden and overconsolidated sediments inbetween the hard rock. in total 12 heat loops were installed. in normal circumstances 4-5 loops must be achieved per day. installation of the loop is done trough the casing. All loops were grouted with a cement slurry trough the swivel while retracting the drill string. quikest hole was done including grouting within 1,5 hour. for more info visit www.sonicsampdrill.com
my neck hurts
musingmumbler 2 years ago