18 July 2017

Weevil

Shortened form of boll weevil. See boll weevil.
25 July 2017

Weight Indicator

An instrument near the driller’s position on a drilling rig that shows both the weight of the drill stem that is hanging from the hook (hook […]
18 July 2017

Weighting material

A material that has a high specific gravity and is used to increase the density of drilling fluids or cement slurries.
18 July 2017

Well completion

1) the activities and methods of preparing a well for the production of oil and gas or for other purposes, such as injection. 2) the method […]