https://spectrum.ieee.org/energywise/en ... rojectilesThe average depth of an oil well is only about a kilometer and a half, and drilling down to 5 km (especially through hard rock) using conventional technology isn’t trivial and definitely not worth the cost. A company called HyperSciences thinks it has a better way. It wants to harness geothermal energy with a new kind of drilling technology that does away with the “drill” bit completely, using projectiles fired into the ground instead.
It’s simple, really: Instead of slowly grinding away at rocks with drill bits that perpetually wear out, just shoot holes in the ground with bullets. According to HyperScience, you can bore a hole ten times faster than traditional drilling equipment this way.
HyperSciences has backing from Shell's GameChanger program to the tune of nearly US $1 million, and the company expects to raise a bit more cash. It plans to demonstrate the technology within the next six months.
Well, a million is chump change, but I like the idea.