18 July 2017

Magnetic brake

See electrodynamic brake.
18 July 2017

Make a connection

To attach a joint of drill pipe onto the drill stem suspended in the wellbore to permit deepening the wellbore by the length of the joint […]
18 July 2017

Make a trip

To hoist the drill stem out of the wellbore to perform one of a number of operations such as changing bits or taking a core and […]
18 July 2017

Make hole

To deepen the hole made by the bit (i.e., to drill ahead).