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Hypersonic missiles instead of drilling rigs

18.08.2015

Geothermal energy has served mankind since time immemorial. As far back as ancient Rome, hot springs were used for public baths and floor heating, and in the 12th century, France built the first central heating system using natural heat. Around 000 MW of geothermal electricity are currently generated worldwide, with an additional 28 GW used for heating, spas, industrial processes, desalination, and more.

However, in order to release steam from underground, wells several kilometers deep are needed, each of which costs from $5 million to $20 million, depending on the depth. A much cheaper, albeit untested, method was proposed by the American company HyperSciences. Its founder, Mark Russell, has received a patent for drilling holes in the earth's crust by bombarding it with hypersonic missiles.

A rocket with a special abrasive core is installed in an accelerator based on a ramjet engine, which serves both as a chamber and as the barrel of this "gun". Gas is injected into the accelerator, which ignites and creates high pressure in the chamber with the rocket, which allows it to fly out at a speed of 2 km / s. This is enough, according to the author, to crush any rock, the remains of which are then sucked out of the well. For greater efficiency, the author suggests using installations of several accelerators.

The design of the rocket itself is described in the patent in very general terms, but the author suggests that it can be equipped with a plastic explosive tip to increase drilling intensity. Temperature and depth sensors can also be placed there.

The lack of details hasn't stopped Russell from getting $1 million in grants from oil company Shell through the GameChanger program, which funds even the most fantastic projects that could affect energy production in the future.

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