Plasma Deep Drilling Technology
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Plasma Deep Drilling Technology
Plasmatorch using water steam as plasma-creation gas

Plasma deep drilling technology is one of several different variants of recently explored new drilling technologies which would be able to substitute conventional, contact-based rotary systems. These new technologies, including plasma deep drilling, water jet, hydrothermal spallation or laser, are matter of active research. Only a very small number of companies have embraced plasma-drilling method, e.g. GA Drilling, headquartered in Bratislava, Slovakia.

High-energetic electrical plasma

High-energetic electrical plasma is a technology currently being developed in deep drilling applications to address many issues related to drilling in water environment or in the production of boreholes with a wide range of diameters.

Physical principle of electrical plasma

Drilling using electrical plasma

An electric arc is an electrical breakdown of a gas that produces an ongoing plasma discharge, resulting from a current flowing through normally nonconductive media such as air or gas. 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. The electric arc is influenced by factors such as: the gas flow, inner and outer magnetic fields, and construction elements of the chamber which confine the arc. The development of highly effective plasma torches to be used as a source of the thermal plasma, demands a deep understanding of a wide spectrum of the processes taking place in the discharge chamber.

Advantages of Plasma deep drilling technology

  1. Higher drilling energy efficiency
  2. Continuous drilling process without replacement of mechanical parts
  3. Constant casing diameter
  4. Effective transport of disintegrated rock

See also

References

  1. Massachusetts Institute of Technology (2006) "The Future of Geothermal Energy"
  2. Celim Slovakia (2011) "Arc Discharge, Plasma Torch (different approaches)"
  3. Pierce, K.G., Livesay, B.J., Finger J.T. (1996) "Advanced Drilling System Study"

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.


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