18 July 2017

Borehole

A hole made by drilling or boring. See wellbore.
18 July 2017

Bottom-supported offshore drilling rig

A type of mobile offshore drilling unit (MODU) that has a part of its structure in contact with the sea floor when it is on site […]
18 July 2017

Bottomhole

The lowest or deepest part of a well. adj pertaining to the bottom of the wellbore.
18 July 2017

Bottomhole choke

A device with a restricted opening placed in the lower end of the tubing to control the rate of flow. See Choke.