18 July 2017

Jet-perforate

To create a hole through the casing with a shaped charge of high explosives instead of a gun that fires projectiles. The loaded charges are lowered […]
18 July 2017

Jetting out

Operation using the jet to clean out the cellar, slush pit, etc.
18 July 2017

Joint

In drilling, a single length (from 16 ft to 45 ft, or 5 m to 14.5 m, depending on its range length) of drill pipe, drill […]
18 July 2017

Junk

Metal debris lost in a hole. Junk may be a lost bit, pieces of a bit, milled pieces of pipe, wrenches, or any relatively small object […]