Reverse circulation drilling uses two drill rods that consist of an outer drill rod that has an inner tube. This is beneficial for drilling companies because it allows the tubes to steadily take sample rock cuttings back up to the top. It compiles sample rock cuttings instead of rock cores. This type of drilling reduces the risk of cross-contamination, which means drilled samples are easier to keep track of and analyze.
RC drilling is beneficial when it comes to deeper drills because it helps moves the process along much faster, which is unlike diamond drilling. In addition, it doesn’t use as much water. This means drilling companies can use it drier climates. The company can save money by using RC drilling instead of the more conventional diamond drilling. Also, this form of drilling is considered a better option for grade control.