RC Drilling and what it means

Reverse Circulation Drilling or RC Drilling is a method of drilling which uses dual wall drill rods that consist of an outer drill rod with an inner tube.These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow.This method of drilling is also used to extract oil and gas from beneath the earth.

What is the Reverse Circulation Process?

Reverse Circulation.The course of drilling fluids downward through the annuls and upward through the drill stem.In contrst to normal circulation in which the course is downward through the drill stem and upward through the annuls.Seldom used in open hole, but frequently used in workover operations.

Here are five of the ost common drilling methods used in extracting oil and gas from beneath the earth: