18 July 2017

Formation fracturing

A method of stimulating production by opening new flow channels in the rock surrounding a production well. Often called a frac job. Under extremely high hydraulic […]
18 July 2017

Formation pressure

The force exerted by fluids in a formation, recorded in the hole at the level of the formation with the well shut in. Also called reservoir […]
18 July 2017

Formation testing

The gathering of pressure data on a formation to determine its potential productivity before installing casing in a well. The conventional method is the drill stem […]
18 July 2017

Fourble

A section of drill pipe, casing, or tubing consisting of four joints screwed together. Compare double, single, thribble. See joint.