18 July 2017
Any assembly of pulleys on a common framework; in mechanics, one or more pulleys, or sheaves, mounted to rotate on a common axis. The crown block […]
18 July 2017
The discharge pipe from a well being drilled by air drilling. The blooey line is used to conduct the air or gas used for circulation away […]
18 July 2017
An uncontrolled flow of gas, oil, or other well fluids into the atmosphere. A kick warns of the possibility of a blowout.
25 July 2017
One of several valves installed at the wellhead to prevent the escape of pressure either in the annular space between the casing and drill pipe or […]