Well drilling

The process of artificial excavation for the purpose of withdrawing water, oil, or gas from underground.
Related topics:

Results listed by similarity [list alphabetically]
Barite: a case study of import reliance on an essential material for oil and gas exploration and development drilling

Reliance on imported barite to supply the United States results from numerous factors, but is primarily influenced by economic conditions, which have increasingly favored imports over domestic production in recent decades.