Ultra Deep Drilling
topic on 1 show · 1 statements across 1 episodes
1 statements about Ultra Deep Drilling, every show
Araque: China's 11-km borehole took an entire year for the final kilometer
“The Chinese recently did an eleven-kilometer haul, and I'm switching units because they, it's been reporting those units. So, about eight miles deep. The first 10 kilometers took a year to drill, and the last one kilometer took another year to drill.”