Quiz

Rotary drilling is the most common method and is used to drill both exploratory and production wells at depths over 5 miles (7,000 m)....

Directional drilling is a rotary drilling technique which directs the drill string along a curved path as the hole deepens....

Rotary percussion drilling is a combination method whereby a rotary drill uses a circulating hydraulic fluid to operate a hammer-like mechanism, thereby creating a series...