Mud Hammer Drilling in Deep Hard Geothermal formation, from the single impact to the directional and vibration characterization

Laurent Gerbaud (1) , A Pubill (2) , H Adannawy (2) , Ahmed Rouabhi (1) , M Lamazouade (3) , R Souchal (3) , B Cuillier (4, 1)

1 GEOSCIENCES - Centre de Géosciences
2 Mines Paris - PSL (École nationale supérieure des mines de Paris)
3 Drillstar Industries
4 Varel Europe (FRANCE)

A new 8 ½" mud hammer prototype and its associated innovative drill bits have been developed and tested to increase drilling performances in hard formations. This system is based on a high-power down-the-hole hammer, capable of delivering high-energy impacts at high frequency.

Mots clés: Drilling Hammer Percussion; Drilling; Hammer; Percussion

Domaines: Mécanique des solides [physics.class-ph]

Laurent Gerbaud, A Pubill, H Adannawy, Ahmed Rouabhi, M Lamazouade, et al.. Mud Hammer Drilling in Deep Hard Geothermal formation, from the single impact to the directional and vibration characterization. European Geothermal Congress 2022, Oct 2022, BERLIN, Germany. ⟨hal-04032833⟩