Workers in China drilled oil wells all the way back in 374 AD. The way they did it was quite impressive — the wells were up to 800 feet deep, and they used bamboo sticks for drilling.
Article by Daily Infographic
source:Here
Workers in China drilled oil wells all the way back in 374 AD. The way they did it was quite impressive — the wells were up to 800 feet deep, and they used bamboo sticks for drilling.
Article by Daily Infographic
source:Here