There is nothing easy when it comes to drilling and extracting oil, especially down-the-hole (also known as down-hole or DTH) drilling. Down-hole drilling is favored for its efficiency to cut through hard rock while maintaining a straight line into the earth. Down-hole drilling is a multi-step process that involves strategic planning. Before any drilling can occur, first a geologist must find oil. The most common way to do this is to conduct a seismic survey by sending shock waves into the earth’s surface. If the readings are favorable to the possibility of an oil trap, the land must then be
