Cost savings

In its initial phase, RMR technology has been used exclusively during top hole drilling operations. However, experience from the Caspian Sea clearly indicates that this same technology can be used successfully for deeper parts of the borehole. As long as the operator can maintain the pressure balance using heavier drilling fluids with the correct viscosity, many short lengths of casing can be replaced by a few long ones. This concept requires the use of a pump to achieve effective pressure control.

The benefit for the operator lies in reduced drilling time, as well as potential reduced conductor/casing strings.