| 摘要 |
A thermal spallation drilling technology is presented requiring no adaptation to standard drill-pipe or surface equipment. The technology omits the need to pump down fuel, as plasma gas is generated down-hole. Electricity for the electric arcs and electrolysis is generated by a down-hole generator, and most plasma generating gas can be recaptured and reused, as the gas is not burned, but atomised, extracting energy from the arc, which energy is released by recombination on the colder formation rock. No adaptation has to be made to the drill-pipe, and the technology can be integrated in standard tri-cone or PDC drill-bits to cyclically weaken the rock and enable the teeth of the drill bit to work faster. Very specific of the technology is that 50% or more of the atoms in the plasma are hydrogen atoms.
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