These new technologies include plasma deep drilling, water jet, hydrothermal spallation and laser.
Companies that embrace plasma-drilling method include GA Drilling, headquartered in Bratislava, Slovakia.
High-energy plasma is a technology that targets deep drilling applications.
It addresses issues related to drilling in water environments or boreholes with varying diameters.
An arc discharge is characterized by a lower voltage than a glow discharge, and relies on thermionic emission of electrons from the electrodes supporting the arc.