I gotta ask. Who in the heck has any experience drilling into supervolcanoes?
Related experience perhaps:
Iceland drills hottest hole to tap into energy of molten magma
https://www.newscientist.com/article/2109872-iceland-drills-hottest-hole-to-tap-into-energy-of-molten-magma/21 October 2016
Drilling into hot rocks to tap geothermal energy is one thing. Drilling deep enough to tap the energy from magma oozing into volcanoes is quite another, offering a massive increase in the potential to exploit Earth’s inner heat.
That is the task of a rig now drilling 5 kilometres into the rugged landscape of old lava flows in Reykjanes, at the south-west corner of Iceland. Drilling began on 12 August.
By the end of the year, the Iceland Deep Drilling Project (IDDP) hopes to have created the hottest hole in the world, hitting temperatures anywhere between 400 and 1000 °C.
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The drilling of the Iceland Deep Drilling Project geothermal well at Reykjanes has been successfully completed.
https://iddp.is/Feb 1, 2017
A significant milestone has been reached in the Iceland Deep Drilling Project at the Reykjanes Peninsula in Iceland when drilling of the IDDP-2 well was completed on the 25th of January at 4,659 meters depth. All of the initial targets were reached. These targets were to drill deep, extract drill cores, measure the temperature and search for permeability. Temperature at the bottom of the well has already been measured at 427°C, with fluid pressure of 340 bars, drill cores were retrieved, and the rocks appear to be permeable at depth. It´s clear that the bottom of the well reached fluids at supercritical conditions, so that the main drilling phase objective of the project has been achieved. The drilling operation took 176 days since we began the drilling operation 11th August 2016.
800°F = 427°C