Revolutionary drilling technology
Together with European project partners, BESTEC has developed a revolutionary drilling technology in a research project.
The novel hybrid drilling technique combines standard rotary drilling with a technology called water jet cutting. The high-pressure water jet (approx. 2,000 bar) is used to pre-damage the rock on impact with the effect of significantly increasing the rate of penetration and thus the overall efficiency of the drilling process. Technical, economic and safety reasons demand that the high-pressure generation unit is directly placed below the drill bit. Despite several great challenges including confined space and harsh conditions at the borehole bottom, a prototype of the high-pressure generation unit was developed and successfully integrated as essential component of the ThermoDrill drilling system.
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